Questions Asked on
November 27, 2012

finance
The Ault Company made a credit sale of $15,000. The invoice was sent today with the terms, 3/15 net 60. This customer normally pays at the net date. If your opportunity cost of funds is 9% the expected payment is worth how much today?
asked by james 
CALCULUS
what is the area in square units of the region under the curve of the function f(x)=x+3, on the interval from x=1 to x=3? 10 12 14 16 18 ?
asked by bri 
math
Home work help plz a)what would be the cost of the activity in the first week b)what would be the cost of the activity each subsequent week Mrs ogden has heard about aqua aerobics from her sister in law. she wants to join her sister in law and her friends
asked by jessica 
Physics
A cylindrical carnival ride is spinning with a frequency of 0.5 Hz in a circle of radius 3 m which allows a 60 kg person to “stick” to the side of the ride as it spins. T = 2s v = 9.42 m/s A) Find the normal force exerted on the person. B) What
asked by Sierra 
math calculus
What value must be defined for f(4) to remove the discontinuity of this function at x = 4? f(x)= x^216/x4 0 4 4 8 8
asked by jessica 
Chemistry
find the dry volume at STP of 500 mL of nitrogen gas measured over water at 15 degree C and 680 mmHg. the water vapor exerts a partial pressure of 12.8 torr at this temperature ( vapor pressure).
asked by delo 
math
Find the accumulated amount A, if the principal P is invested at an interest rate of r per year for t years. P = $24,000, r = 7%, t = 6, compounded monthly $ ?
asked by Amanda 
PRE CALC
Which combination of limit properties is required to evaluate this limit? lim (24/x2x+2)^3 x>4 f. sum, difference, product, root g. sum, difference, product, power h. sum, difference, quotient, power i. sum, difference, quotient, root j. A limit does not
asked by DARRON 
math
For a normal curve, what percentage of values falls beyond two standard deviations from the mean? A. 5.55% B. 4.55% C. 10.55% D. 12.55% E. 13.11%
asked by DARRON 
Physics
Ocean waves pass through two small openings in a breakwater. This time the openings are d = 21 m apart. You're in a small boat on a perpendicular line midway between the two openings, L = 80 m from the breakwater. You row x = 32 m parallel to the
asked by Olivia 
Chemistry
Calculate the pH of 30.0 mL of 0.025 M NaOH
asked by Jen 
Chemistry
Calculate the pH of 30.0 mL of 0.025 M NaOH
asked by Jen 
Algebra
Please help asap, (Question) he length width of a rectangle are in the ratio 3:2. The perimeter is seventythree centimters.
asked by TaSherra 
MATHS
A committee of two persons is selected from two men and two women. Find the probability that the committee will have at least one man.
asked by CASEY 
MATHS
Find the area of the region bounded by the curve of sin x between x = 0 and x = 2π.
asked by CASEY 
maths
Let A, B and C be the sets such that A ∪ B = A ∪ C and A ∩ B = A ∩ C. Show that B = C.
asked by Lisa 
calculus
Which expression completes the identity sin ucosv = ?
asked by amy 
Sociology
I need help identifying a country. In the 1980’s Country an introduced changes that were intended to change the country’s rural areas. Most subsidies for agriculture were eliminated, including subsidies for agricultural inputs such as seeds and
asked by Charlene 
Physics
A 90N dog climbs up a nonuniform (lambda = Cx^(3/2)), 100N ladder. The top of the ladder rests on the top of a frictionless fence that is 3m high and forms a 30 degree angle with the ground, which is rough and has a coefficient of friction of 0.60. How
asked by Min 
Chemistry
What is the molarity of potassium nitrate?
asked by Shayla 
CHEM HELP
I asked this already but for some reason the answer I got isnt being accepted online Question: In the laboratory, 3.50 grams of salicylic acid were reacted with 7.20 ml of acetic anhydride (density equal to 1.08 g/ml). Determine the limiting reagent. I
asked by Yaw 
math
what number is 33% of 500?
asked by j 
pre calculus
janet worked on a garden shaped like a triangle with a base that is 5 m less than twice the height. If the area of the garden is 90 m^2, how long is the base and the height?
asked by abraham 
math
Find three consecutive integers such that the square of the third minus the first is equal to 2 more than 5 times the second.
asked by abraham 
Statistics
A simple random sample of 50 female 14yearolds is selected. The sample mean height of the girls is found to be 62 inches. Assume the height of 14yearold girls is normally distributed with a standard deviation of 5 inches. 1. Based on these data, a 95%
asked by Clay 
Statistics
The nicotine content in cigarettes of a certain brand is normally distributed with mean (in milligrams) μ and standard deviation σ = 0.1. The brand advertises that the mean nicotine content of their cigarettes is 1.5, but measurements on a random sample
asked by Clay 
math need help urgent
find the domain f(x)=x/x8,g(x)=7/x solve the following exponential equation equation exact answers only 3e x1 = 2+e^x1
asked by zach w 
math need help urgent
find the domain f(x)=x/x8,g(x)=7/x solve the following exponential equation equation exact answers only 3e x1 = 2+e^x1
asked by zach w 
Chemistry
What volume of 0.25 mol L1 sodium nitrate solution could be prepared using 6.00 moles of compond?
asked by Jacob Paul 
math
susan throws a softball upward into the air at a speed of 32 feet per second from a 8 foot platform. the distance upward that the ball travels is given by the function. d(t)=16t^2+32t+8. What is the maximum height of the softball? how many seconds does it
asked by gabby 
algebra
Light intensity(lumens) at a depth of x feet has the equation log I/12=0.0125x what depth will the light intensity be half that of the surface
asked by Steve 
Algebra
Sara has twice as much money as Miguel. If she had $6 more. She would have 4/3 as much money as he has. How much money does each have now?
asked by Bob 
algebra
A store manager bought c calculators for $8. All but four were sold for $10 each. The remaining four calculators were not sold. Find the store's profit, in simplified form, in term of c.
asked by Bob 
Math radicals
Radical 8 over 18 ? Plz reply fast
asked by Liily 
Radicals math
Write. Without the radical symbol : 1.) radical 400 2) Radical 16 over 49. 3). Radical 2 over 50.
asked by Liily 
Algebra 1B Chapter 10
I'm reclassified but I'm still a 10th grader and the only class I need to take is Algebra1B So here's the problem. I'm 1990, the town of Belgrade, Montana, had a popuof of 3422. For each of the next 8 years, the population increased by 4.9% per year. a.
asked by Asheir 
Math
1)Radical 2 over 50 2) radical 10 to the power 3 all squared.
asked by Edd 
chemistry
Explain the effect of molecular polarity on behavoir
asked by Ismail basira 
math
find the 6 trigonometric functions of tan (3/8): sin < Ø
asked by kym 
maths
if 59,51,76,3,6 were numbers as total and 84,88,35,62,18 were machine produce what will be the next 5 out come numbers.if we are selecting from 1 to 90.
asked by eric 
maths
if cosx=1/2,x lies in third quadrant, find sinx.
asked by manpreet 
maths
Let A, B and C be the sets such that A ∪ B = A ∪ C and A ∩ B = A ∩ C. Show that B = C.
asked by mandeep 
math help
A male black widow spider is half the size of a female black widow spider. Together, they are 21 millimeters in lenght. How big is a female black widow? A male?
asked by carito 
Math
is radical 9*4 = radical 9 * radical 4 ? Justify
asked by Mia 
Physics
A cubical object of sides 5 cm is immersed completely in water. What is the force of buoyancy on the object? (Assume g = 10 m/s2)
asked by Mark 
Physics
What is the frequency of a sound wave in air at 20°C that has a wavelength of 0.4 m?
asked by Joshua 
Physics
An object is placed 11 cm in front of a convex mirror of focal length 4 cm. Using the lens equation, find where the image will form and state whether it is a real or virtual image.
asked by Melanie 
elocution
theme united we stand divided we fall
asked by godwin 
Probabilityplse
A committee of two persons is selected from two men and two women. Find the probability that the committee will have at least one man.
asked by mandeep 
Physics
A man cycles up a hill whose slope is 1in20. If themass of the man and the cycle is 150kg and the man covers a distance of 100m along the incline, calculate the work done by theman.
asked by Aditya 
math
how many terms are there on a 1/2 (a+b)? and are they monomial or binomial?
asked by randy 
math
a ship sail S 40 degrees W four 4 hours how do i figure out this question
asked by Maddie 
Math
What is radical 2/50 ?
asked by Jazmine 
Chemistry
Briefly explain what the consequense would be if excess 6M NaOH solution instead of ^m NH3 solution were used to separate Fe3+ and Al3+ ions from Ca2+, Cu2+,and K+ ions at pH 910.
asked by Cherie 
Math Essentials
How many ways can an IRS auditor select 4 of 9 tax returns for an audit?
asked by Amber 
calculus
A machine on an assembly line fills cans with quantities of food that are normally distributed with a standard deviation of 0.057 pounds. The mean quantity filled is estimated using a sample of 100 cans. What is the difference between the upper and lower
asked by taz 
algebra
what should be the equation of the line in standard form that passes through (4,6) and is parallel to the line where equation is y=2/3x +5?
asked by kristine 
calculus
What is the value of this expression when n approaches infinity? 4 −(4/n)+(5/n)+(15/3n^2) *its all one equation*
asked by taz 
math
Maria ran 3 and 4/5 miles. She ran 1 and 2/3 miles further than Paul. Write the equation.
asked by Lindsay 
math
Can 0/3 + 3 be simplified? Can 10m + 1 / 10 be simplified?
asked by Lindsay 
statistics
How many ways can a person select 6 candy bars from a list of 10, and 6 snacks from a of 12?
asked by Bonnie 
Math
A recipe for cake calls for 5 and 1/4 cup of flour. The chef mistakenly adds 7 and 2/3 cups of flour to the mixture. How much flour does the chef need to remove from the mixture?
asked by Lindsay 
soc 305
In American society, those least likely to be living in poverty are ____________.
asked by greg 
Financial management
what is the principle investment ? you have $1728.34 compounded daily at 3.4% and its invested for 9 years
asked by Michelle 
precalc
For the equation 2x 3  11x 2 + 12x + 9 = 0, the root 3 has a multiplicity of _____.
asked by brenn 
calculus
Which is the correct cofunction identity for tan?
asked by Pilly 
calculus
Which of the following is NOT a solution to cos^2 x = 3sin^2 x? 30 60 150 210 330
asked by philly 
Consumer Math
The simple interest earned on a deposit of $3,000 at 6% for 5 years.
asked by Hanuel 
physics
An object has a force of 10 newtons from the right and 17 newtons from the left. Once the object starts moving toward the right, an additional force of 7 newtons is applied from the right. What can you conclude about the direction of motion of the object
asked by Kiandra 
physics
An object has a force of 10 newtons from the right and 17 newtons from the left. Once the object starts moving toward the right, an additional force of 7 newtons is applied from the right. What can you conclude about the direction of motion of the object
asked by Kiandra 
physics
An object has a force of 10 newtons from the right and 17 newtons from the left. Once the object starts moving toward the right, an additional force of 7 newtons is applied from the right. What can you conclude about the direction of motion of the object
asked by lili 
physics
An object has a force of 10 newtons from the right and 17 newtons from the left. Once the object starts moving toward the right, an additional force of 7 newtons is applied from the right. What can you conclude about the direction of motion of the object
asked by lili 
physics
An object has a force of 10 newtons from the right and 17 newtons from the left. Once the object starts moving toward the right, an additional force of 7 newtons is applied from the right. What can you conclude about the direction of motion of the object
asked by lili 
calculus
A camera store sells 40 pairs of binoculars per week on average with a standard deviation of 6. What is the probability that the store will sell more than 52 pairs binoculars in any week? 8.28 3.57 7.24 2.28 4.55
asked by tremain 
English
Combine the sentences below into a brief paragraph,using clear and efficient language.Remember that each sentence contains some information that is essential to the meaning of the overall paragraph; do not omit any necessary details. When you have
asked by Lily 
English
Can you recommend so websites for an assignment I am doing on the ancient origins of Valentine's Day and how it was celebrated in ancient times and today?
asked by Vicky 
physics
An astronaut throws a wrench in interstellar space. How much force is required to keep the wrench moving continuously with constant velocity? Select one of the options below as your answer: A. a force equal to its weight on Earth B. a force equal to zero
asked by lili 
pre calculus
A bag contains 4 blue marbles, 2 black marbles, and 3 red marbles. If a marble is randomly drawn from the bag, what is probability that it is not black? 1/2 2/9 5/9 7/9 14/19
asked by king chris 
Chemistry
A 25.0 g block of copper at 350.0 degrees celcius has 857J of heat added to it. What is the final temperature of the block of copper?
asked by Maryam 
Chemistry
How much heat is required to raise the temperature of a 125g block of iron from 17.5 degrees celcius to 82.3 degrees celcius?
asked by Maryam 
chem
Endothermic reaction equilibrium: BiCl3(aq) + H2O(g) = BiOCl(s) +2HCL(aq) + 2 HCl at a point at which the sollution is colorless and a small minute amoount of BiOCl(s) is observed. for the folowing questions 1to 5: a. state which way the reaction shift in
asked by Audrey12 
calculus
3 letters are chosen at random from the letters P, A, N, S, O, L. What is the size of the sample space of this experiment? 12 10 20 30 35
asked by king chris 
Chemistry
How much heat is required to raise the temperature of a 35.0g block of aluminium from 125 degrees celcius to 322 degrees celcius?
asked by Maryam 
Chemistry
7750 J of energy is added to a 325g stone at 24.0 degrees celcius. The temperature increases by 75.0 degrees celcius. What is the specific heat of the stone?
asked by Maryam 
Chemistry
A 335g block of copper cools from 95.0 degrees celcius to 27.2 degrees celcius when it is put in a beaker containing water at 22.4 degrees celcius. What is the mass of the water in the beaker?
asked by Maryam 
Chemistry
A 35.0 g block of copper at 350.0 degrees celcius is added to a beaker containing 525 g of water at 35.0 degrees celcius. What is the final temperature of water?
asked by Maryam 
Geometry
Write a two column proof proving figure ABCD is a rhombus. Given  diagonal BC.
asked by Maryam 
calculus
Robin randomly selects a number between 1 and 20. What is the probability that the number selected is the square of a natural number? 1/2 3/20 3/10 1/5 1/3
asked by kiandra 
algebra
a five digit number that follows the pattern:if you put a 1 after it the number is three times as large as it would be if u had put a 1 before it
asked by Anonymous 
chemistry
a. Find the amount of solute based on this information Volume = 500 ml Concentration of solution= 15% (w/w) Solute (molar mass) = H2SO4 is 98.0g/mol b. Find the molar mass Amount of solute= 117.0g Volume of solution= 2.00L concentration of a solution= 1.0M
asked by vince11 
science
The major advantage provided by worms to a lawn is
asked by Elisha 
calculus
Which is the sixth term in the expanded form of this binomial? 14(x)^3 280(x)^2 280(x)^3/2 672x 448x
asked by HELP! 
chemistry
The organic compound dinbutyl phthalate, C16H22O4(l), is sometimes used as a lowdensity (1.046 g·mL–1) manometer fluid. Compute the pressure (in torr) of a gas that supports a 585mm column of dinbutyl phthalate. The density of mercury is 13.53
asked by anonymous 
art
How do I set out a timeline from Prehistoric art to Modern art in a power point presentation?
asked by Rhys 
CALC
Find the coefficients of this binomial using Pascal’s triangle: (a + b)^8.
asked by Leandra 
CALC
A biased coin whose chance of heads is 0.4 is tossed five times in a row. What is the probability that heads is tossed exactly 2 times? 20.2% 23.04% 36.8% 40.1% 45.6%
asked by Leandra 
Physics
A vibrator in a ripple tank vibrates with a frequency of 3.0 Hz and an amplitude of 2.5 cm. The resulting waves travel away from the source with a speed of 2.5 cm/s, passing under various markers floating on the water. (a)In what direction(s) do the marker
asked by Raj Phys27/11 
calculus
If Sn = 1 + 6 + 11 + 16 + 21 + 26...... where an = (5n − 4), what would be the mathematical expression represented by Sk + ak + 1?
asked by miley 
calculus
What is the first natural number that causes the statement 1 + 3 + 5 +... + (2n − 1) 4n − 1 to fail? 2 3 4 5 6
asked by miley 
pre calc
If Sn represents the sum of the squares of the first n natural numbers, use proof by induction to find which of the following expressions for Sn is true? Sn=n(n1)/(3) Sn=n(2n1)/(3) Sn=n(n+1)/(3) Sn=n(n+1)(2n+1)/(3)
asked by ziya 
Finance
Assume the economy consisted of three types of people. 50% are fad followers, 45% are passive investors who hold the market portfolio, and 5% are informed traders. The portfolio consisting of all the informed traders has a beta of 1.5 and an expected
asked by Jasper 
algebra
Could someone please explain the steps in finding all the real zeroes y=(x12)^37 I do not know how
asked by lee 
algebra
Could someone please explain the steps in finding all the zeroes of the equation x^46x^27x6=0 Have no idea
asked by lee 
pre calc
What is the first natural number that causes the statement: (2 + 3)^n **less than equal to sign** 4^n + 3^n to fail? 1 2 3 4 5
asked by ziya 
CALCULUS
The masses of 10 books are found to be in an arithmetic sequence. If their total mass is 13 kg and the lightest book has a mass of 400 grams, what is the mass of the heaviest book? 2,000 grams 2,100 grams 2,200 grams 2,300 grams 2,700 grams
asked by Chelsy 
world history
Which of the following was not an innovation that came about due to militarization in the 1800s?
asked by laura 
Poetry
2. Which of the following lines from the poem includes an example of alliteration? (1 point) Waiting, huddled close together Our food was gone. Our fuel was low. Amundsen had reached the Pole. We had come pursuing glory
asked by Jane 
calculus
A multistoried building has a floor area of 2,000 square feet on the ground floor, 1,995 square feet on the 1st floor, 1,990 square feet on the 2nd floor, and so on. If the areas of the higher floors follow this sequence, what is the expression to
asked by Chelsy 
physics
A 66 kg human sprinter can accelerate from rest to 11 m/s in 3.4s. During the same interval, a 35 kg greyhound can accelerate from rest to 20 m/s. Compute (a) the change in kinetic energy of the sprinter. (b) the change in kinetic energy of the greyhound.
asked by Anonymous 
algebra
f(x)=square root of 5x and g(x)=x^2+2x a find g(f(1)) bf(x)/g(x), state the domain, then evaluate for x=3
asked by Steve 
maths
kathleen spent 5/8 of her money and had 15e left how much had she at the start
asked by nic 
structure and function of the human body
What is the importance of ATP? explain where carbohydrate metabolism occurs in the cell, what additonal ingredient is needed and what waste product is produced in this process?
asked by Liz 
math
two 6 sided dice are rolled . what is the probability the sum of the two numbers on the die will be 6
asked by Anonymous 
poetry
9. Rewrite the first stanza of “Scott’s Goodbye” as free verse. (5 points)
asked by Jane 
Physics
A point source is generating circular water waves. (a) What does the amplitude of the wave near the source depend on? (b) What happens to the amplitude of the wave as it spreads outward? (c) Why the amplitude of a wave changes as it spreads outwards?
asked by Raju 
college course
•unscramble letters for phrases  I / _ _ _ _ _ / _ _ _ _ / _ _ / / _ _ _ _ / a / _ _ _ _ _ / I / _ _ _ / but/ _ _ _ _/ _ _ _ _ _/ _ _ e_ _ / the / _ _ _ e_/. One sentence. this is what they have given me already and said I can use only these letters but
asked by wendy 
Statistics
I am so lost on this statistics question would someone help me figure out how to answer it? A random variable X is normally distributed with the mean and standard deviation 1.6. What is the proportion of the data values that lies within 1.6 standard
asked by Layney 
language arts
is chapter 5 in johnny tremain a major event.
asked by aliyah 
math
Jerry invested $14,000 in a certificate of deposit at 5%. He also put $2,500 in a savings account at 3%. How much interest will he earn after one year?
asked by Anonymous 
physic
A force of 20 newtons is exerted on a chair from its right and a force of 12 newtons is applied from its left. What is the net force acting on the chair and in what direction will the chair tend to move?
asked by kiandra 
math
Beth Pittman earns $12,558 per year. She is paid 52 times per year and claims 2 exemptions. If $8.85 in taxes is withheld from each paycheck, at what rate is she taxed?
asked by Anonymous 
physics
Air consists of molecules of several types, with an average molar mass of 28.95 g. An adult who inhales 0.6 L of air at sea level takes in about how many molecules? (The density of air is 1.229 kg/m^3, and the molar mass of air is 28.95 g/mol.)
asked by john 
physics
A scuba diver must decompress after a deep dive to allow excess nitrogen to exit safely from his bloodstream. The length of time required for decompression depends on the total change in pressure that the diver experienced. Find this total change in
asked by phillip 
Math
If X = 12 units, Y = 10 units, and Z = 14 units, then what is the surface area of the right triangular pyramid shown above?
asked by Kate 
math
Problem: how many bricks 3.75 in. Wide × 8 in. Long are required to cover a patio 13 ft. 6 in. Wide by 18 ft 9 in. LonStep 1. First, find the total width & length of the patio in inches. Step 1a. Convert the portion of width and length that is expressed
asked by kaykay 
Social studies
what was the formal name for our country?
asked by Jason 
math
based on simple interest,find the amount saved or owed principle=$1700rate=6%time=5yrs
asked by tariq 
chemistry
{\rm NH}_{4}{\rm Cl} Express your answers as integers. Enter your answers numerically separated by commas.
asked by Anonymous 
chem
what volume of 14.8M ammonia is required for preparation of 3.1g of [cu(nh3)4]so4.h2o
asked by Anonymous 
Math
A customer of Central States Bank places $3,500 in a savings plus account for 9 months. The interest is 4.5%. What total amount is in the account at the end of this time?
asked by Edna 
mattttthhhhhhh
Problem: how many bricks 3.75 in. Wide × 8 in. Long are required to cover a patio 13 ft. 6 in. Wide by 18 ft 9 in. LonStep 1. First, find the total width & length of the patio in inches. Step 1a. Convert the portion of width and length that is expressed
asked by kaykay 
chemistry
0.2688 of a monoprotic acid neutralizes 16.4mL 0f 0.08133 M KOH. Calculate the molar mass of the acid in units of g/mol
asked by alejandra 
Algebra 2 help please :)
What is a cubic polynomial function in standard form with zeros 1, –2, and 2? Use synthetic division to find P(3) for P(x) = x^4 – 6x^3 – 4x^2 – 6x – 2. Divide 3x^3 + 3x^2 + 2x – 2 by x + 3 using long division. Divide using synthetic division.
asked by Robert 
trigonometry
Find the magnitude of the resultant force and the angle between the resultant and each force: Forces of 2 lbs and 12 lbs at an angle of 60 degrees to each other.
asked by mikey 
trigonometry
A plane is headed due west with an air speed of 300 mph. The wind is from the north at 80 mph. Find the bearing for the course and the ground speed of the plane.
asked by mikey 
psych
1.11 (1 pts.) While Pete was out playing touch football with his friends, he tripped, fell, and bumped his head on the ground. Immediately afterward, he was very disoriented and kept asking his friends what time it was. Pete may have experienced A)
asked by Jenny 
psych
1.21 (1 pts.) William is acutely retarded and requires intense care. His IQ has been measured at approximately 15. What term would be used to classify William's level of retardation? A) mild B) moderate C) severe D) profound # 1.22 (1 pts.) Shannon has
asked by Jenny 
math
a system has a total mechanical energy of 350 J and kinetic energy of 220 J. what is its potential energy?
asked by takwazi whtison 
Chemistry Lab
chemical equation for saponification of methyl salicylate in 6 M NaOH. C8H8O3 + NaOH > C7H6O3Na + CH3OH + H2O is this the right reaction? is saponification like hydrolysis? what is the hydrolysis of methyl salicylate in 6M HCL? C8H8O3 + HCl >
asked by 657 
chemistry
How would student make 500mL of .08500 M solution of iron using stock solution of .3180 M in iron(III)?
asked by zale 
psych
21(1 pts.) Based on the incidence of Fetal Alcohol Syndrome in various ethnic groups, which of the following individuals would be considered high risk? A) a woman of French Canadian descent B) a woman of Irish descent C) a woman of Italian descent D) a
asked by Bryan 
abnormal psych
# 1.44 (1 pts.) Dr. Green is an admitting psychologist at a psychiatric hospital. Unfortunately, every client she interviews receives the diagnosis of schizophrenia. Dr. Green's diagnostic system ignores A) reliability. B) variance. C) base rates. D)
asked by Bryan 
English 4
How does nature in Wordsworth's poetry differ from nature in Byron's description of the Byronic hero?
asked by Monica 
physics
A car moving with a speed of 85 km/h is brought to rest in a didtance of 60 m. How much time did the car take to stop?
asked by Anonymous 
chem
Describe in detail by words how to prepare 200ml of .150M HCl from a 1.00 M HCl stock solution? Need help with this please? i used C1V1=C2V2 and got volume 2 = 33L or 0.33mL. to prepare the solution i need to weigh 1 gram of HCL (from 1.00M HCl stock
asked by vince11 
Chemistry
How to predict the possible structures of a compound if the degree of unsaturation of it is in fraction?
asked by Unaz 
Math (MS112)
What rate of interest, to the nearest tenth of a percent, compounded quarterly is needed for an investment of $1700 to grow to $2600 in 12 years? I am given the formula A=P(1+r/n)^nt
asked by Taylor 
physics
The largest grand piano in the world is really grand. Built in London, it has a mass of 1.25 × 103 kg. Suppose a pianist finishes playing this piano and pushes herself from the piano so that she rolls backwards with a speed of 1.4 m/s. Meanwhile, the
asked by Anonymous 
physics
The largest grand piano in the world is really grand. Built in London, it has a mass of 1.25 × 103 kg. Suppose a pianist finishes playing this piano and pushes herself from the piano so that she rolls backwards with a speed of 1.4 m/s. Meanwhile, the
asked by Anonymous 
physics
The largest grand piano in the world is really grand. Built in London, it has a mass of 1.25 × 103 kg. Suppose a pianist finishes playing this piano and pushes herself from the piano so that she rolls backwards with a speed of 1.4 m/s. Meanwhile, the
asked by Anonymous 
physics
a football player runs at 8 m/s and plows into a 80 kg referee standing on the field causing the referee to fly forward at 5 m/s. if this were a perfectly elastic collision, what would the mass of the football player be?
asked by celeste 
statistics
Find the t dcore you would use for an 95% confidence interval. 80 students,72 average, 4 standard deviation.
asked by diane 
math
3500 in a savings account for 9 months at a interest of 4.5%. What is the total amount at the end of this time? Thanks.
asked by Edna 
physics
A box with a volume V = 0.03 m^3 lies at the bottom of a lake whose water has a density of 103 kg/m^3. (a) How much force is required to lift the box, if the mass of the box is 100 kg? (b) How much force is required to lift the box, if the mass of the box
asked by lisa 
chemistry
Your xray lab has a monochromator consisting of a single crystal of nickel cut so that the (001) plane lies in the cube face. At what angle (in degrees) should the cube face be tilted with respect to the incident beam in order to select radiation with a
asked by svetika 
physics
A tank of height H is filled with water and sits on the ground. Water squirts from a hole at a height y above the ground and has a range R. For two y values, 0 and H, R is zero. Determine the value of y for which the range will be a maximum. (Use any
asked by joshua 
physics
An opentopped tank completely filled with water has a release valve near its bottom. The valve is h = 1.9 m below the water surface. Water is released from the valve to power a turbine, which generates electricity. The area of the top of the tank, A_T, is
asked by Brandon 
Genetics
starting with 1000 copies of a template, 35 cycles of PCR were performed. What is the theoretical yield of copies of double stranded product of this amplification reaction?
asked by Josh G. 
chemistry
What is Boyle's Law constant if a sealed rigid container with a volume of 650 mL has a pressure of 131.1 kPa ?
asked by zale 
Physics: Wave Motion
A vibrator in a ripple tank vibrates with a frequency of 3.0 Hz and an amplitude of 2.5 cm. The resulting waves travel away from the source with a speed of 2.5 cm/s, passing under various markers floating on the water. (a)In what direction(s) do the marker
asked by Raj Phys27/11 
Physics
Why is it that if deceleration is doubled, distance is halved?
asked by Rachel 
physics
A technician wishes to produce the lens +2.00DS/+2.00DC x90 in toric form, in CR39 with a 5.00 base curve. After finishing the toroidal surface with the CR39 tool it is discovered that, in error, they have used a plastics material of refractive index
asked by need help! 
chemistry
An xray generator operated at a plate voltage of 7000 V is incapable of producing Ni Kα radiation. Calculate the minimum energy required for a ballistic electron to produce Ni Kα radiation. Express your answer in units of eV.
asked by svetika 
Statistic
In chi square goodness of fit test, if the expected frequencies, and the observed frequencies were quite different, we could conclude that: A) null hypothesis is false, and we would reject B) chi square distribution is invalid, and use t distribution
asked by Mary 
English
Please help me figure out what I got on my exams, am kind of worried!Please tell me if I am passing! Thank you! I got 113of 250 on my first exam. 113/250*100=.204304 is this right? Second exam: 120/250*100=.2304 is this right? Thank you!
asked by Jessica102 
College Chem 1
a chemistry handbook lists the solubility of NaI as 184 per 100mL of H2O at 25 degrees Celcius. 1) How many moles of NaI can be dissolved in 100mL of H2O at 25 degrees Celcius? 2) What would be the molarity of a saturated aqueous solution of NaI prepared
asked by Anonymous 
English.
I have researched Valentines day and its origins and how it was celebrated today and in ancient times. I am having a hard time starting my introduction. Can you help?
asked by Vicky 
physics
A technician wishes to produce the lens +2.00DS/+2.00DC x90 in toric form, in CR39 with a 5.00 base curve. After finishing the toroidal surface with the CR39 tool it is discovered that, in error, they have used a plastics material of refractive index
asked by need help! 
MultiStep Equations
There are not any choices to these so I need help 1. x/4 + 1 = 5 2. 6x + 29 = 5 3. Combine like terms 21a + 16a
asked by Anonymous 
calculus
a random sample of 80 students at a large school shows an average grade of 72 in algebra with a standard deviation of 4. find the tscore you would use for an 95 % confidence interval
asked by emanuel hargrove 
chemistry
Balance the following equations. Show all work. MnO4 + Zn > Mn2+ + Zn2+
asked by MARY 
math
how many times less is 400 than 4 million; explain
asked by frank 
chemistry
is water hard or soft if it contains 1.8 moles
asked by Anonymous 
Steve I have a question
I have 6 more questions do you mind helping me with them? Pretty Please! :()
asked by Anonymous 
physics
A technician wishes to produce the lens +2.00DS/+2.00DC x90 in toric form, in CR39 with a 5.00 base curve. After finishing the toroidal surface with the CR39 tool it is discovered that, in error, they have used a plastics material of refractive index
asked by Can anyone help? 
physics
A technician wishes to produce the lens +2.00DS/+2.00DC x90 in toric form, in CR39 with a 5.00 base curve. After finishing the toroidal surface with the CR39 tool it is discovered that, in error, they have used a plastics material of refractive index
asked by Can anyone help? 
physics
A technician wishes to produce the lens +2.00DS/+2.00DC x90 in toric form, in CR39 (n=1.498)with a 5.00 base curve. After finishing the toroidal surface with the CR39 tool it is discovered that, in error, they have used a plastics material of refractive
asked by Can anyone help? 
Math
1. Samuel is 2/3 as old as his brother. In five years, he will be 3/4 as old as his brother will be. Find their present ages. a. If x = the brother’s age now, write an expression for Samuel’s present age in terms of x. b. Write an expression for the
asked by Morgan 
Fundamentals of Early Childhood Education
Describe nine elements of daily structure recommended for early childhood program.
asked by Stevie 
math
fiona invested $1000 at 6% compounded continuously. at the same time, maria invested $1100 at 6% compounded daily. how long will it take for their investments to be equal in value? step by step please!
asked by Katharine 
math
fiona invested $1000 at 6% compounded continuously. at the same time, maria invested $1100 at 6% compounded daily. how long will it take for their investments to be equal in value? step by step please!
asked by Katharine 
Physics
Two fraternities are in a tug of war. Theta Chi is pulling with a total force of 4,748 newtons to the east and Tau Kappa is pulling with a total force of 3,969 newtons to the west. What is the magnitude and direction of the resultant? Which team will win?
asked by Amanda 
stats & prob.
Given the values of n=5, p= 0.15, and (1p)=0.85, calculate the standard deviation of the data.
asked by Georgia 
quantitative analysis
consider a manufacture whose total cost of producing x items is given by c(x) = 10000 + 5x+1/9x^2 a) what is the average cost function of A(x) = c(x)/x? b)how many items should the manufacturer produce in order to minimize average cost? c)what is the
asked by tyler 
precalculus
Solve the given equation. (Enter your answers as a commaseparated list. Let k be any integer. Round terms to two decimal places where appropriate.) sin θ = root 2/2 and List six specific solutions.
asked by Ama 
Physics
A centrifuge rotor rotating at 11500 is shut off and is eventually brought uniformly to rest by a frictional torque of 1.52 . a.If the mass of the rotor is 6.07 and it can be approximated as a solid cylinder of radius 0.0750 , through how many revolutions
asked by Melissa 
precalculus
Solve the given equation. (Enter your answers as a commaseparated list. Let k be any integer. Round terms to two decimal places where appropriate.) tan θ =  root of 3/3
asked by Ama 
precalculus
Find all solutions of the given equation. (Enter your answers as a commaseparated list. Let k be any integer. Round terms to two decimal places where appropriate.) tan^2 θ − 3 = 0
asked by Ama 
Nutrition
What is the portion size of a #8 scoop?
asked by Joshua 
math
Find the effective rate corresponding to the given nominal rate. (Round your answer to the nearest hundredth of a percentage point.) (a) 7%/year, compounded daily % (b) 6%/year, compounded monthly %
asked by Ashton 
math
Find the present value of $26997.18 due in 3 yr at an interest rate of 10%/year compounded continuously. $?
asked by Ashton 
algebra 1
name the property that justifies the following 15=15
asked by ledarrius 
English
What would be an example of using one analogy and one idiom in a paragraph.
asked by Paul 
physics
What is the intensity in watts per meter squared of 85.0 db sound?
asked by Jason 
physics
What sound intensity level in dB is produced by earphones that create an intensity of 4.00¡¿10^2 W/m^2?
asked by Jason 
physics
What is the sound intensity level in decibels of ultrasound of intensity 10^5 W/m2, used to pulverize tissue during surgery
asked by Jason 
physics
A technician wishes to produce the lens +2.00DS/+2.00DC x90 in toric form, in CR39(n=1.498)with a 5.00 base curve. After finishing the toroidal surface with the CR39 tool it is discovered that, in error, they have used a plastics material of refractive
asked by Can anyone help? 
physics
What is the speed of sound in a medium where a 100kHz frequency produces a 5.96cm wavelength?
asked by Jason 
math
the little town arts center charges $21 adults, $14 seniors, and $6 for children under 12 for their live performances on sunday afternoon. This past sunday, the paid revenue was $9486 for 718 tickets sold. there were 44 more children than adults. How many
asked by hira 
Math
Javon's class have 24 students.If 1/8 of them play the piano,how many of the student in his class play the piano?
asked by Anonymous 
Math
Javon's class have 24 students.If 1/8 of them play the piano,how many of the student in his class play the piano?
asked by Anonymous 
chemistry
describe the preparation of 100ml of 6.0M HCl from a concentrated solution that has a specific gravity of 1.18 and is 37% w/w HCl.
asked by Eugene 
Reading
compare the following items from the past to the present.car stove telephone and washing machine
asked by Anonymous 
Physics
A warehouse employee used a cable to pull a 125 kg crate across the floor. the angle between the cable and the floor was 25°. The magnitude of the pulling force was 185 N. The coefficient of kinetic friction between the crate and the floor was 0.27.
asked by Kevin 
Physics
A rocket of total mass 3100 is traveling in outer space with a velocity of 120 . To alter its course by 40.0, its rockets can be fired briefly in a direction perpendicular to its original motion.
asked by Roland 
Physics
A vibrator in a ripple tank vibrates with a frequency of 3.0 Hz and an amplitude of 2.5 cm. The resulting waves travel away from the source with a speed of 2.5 cm/s, passing under various markers floating on the water. (a)In what direction(s) do the marker
asked by Raju 
MATH
HOW MANY TIMES LESS IS 400 THAN 4 MILLION???
asked by frank 
MATH 5TH GRADE
HOW MANY TIMES MORE IS 2000 THAN 20?
asked by frank 
math
Find the present value of $26997.18 due in 3 yr at an interest rate of 10%/year compounded continuously. $?
asked by Ashton 
math
Find the present value of $26997.18 due in 3 yr at an interest rate of 10%/year compounded continuously. $ ?
asked by Ashton 
Science
Can you explain tectonic plates?
asked by Olivia 
English
1. He is the oldest of the three. 2. he is the oldest of three. (Which one is right?)
asked by rfvv 
math
what is 6 minus 2 and one half? please explain answer
asked by Anonymous 
chemisrty
What is ΔGo at 1000 oC for the following reaction? CaCO3 (s) CaO (s) + CO2 (g)
asked by laquisha 
Reading
compare the following items from the past to the present.car stove telephone and washing machine
asked by Shanell 
math
how do you divide 1.0 divided by 0.02
asked by angela 
math
what dimensions would make a box that has a volume of 27? show how you came up with it?
asked by darius 
chemistry
A 1.70 g sample of a certain metal reacts with acid to liberate 380 mL of hydrogen gas, when collected over water at 20 Celsius and over 720 torr. What is the equivalent mass of the metal?
asked by Brit 
Chemistry
Calculate the maximum mass of calcium metal that should be used in an equivalent mass determination, with a 100 ml gas measuring tube for collection. Assume 80 ml of hydrogen gas at standard conditions for the purposes of calculation.
asked by Brit 
Geometry
Isosceles triangle base is 7 more than onehalf times the legs. Perimeter is 22 centimeter Find length of each leg b
asked by Gia. 
Physics
Suppose there is a small hole (radius=0.0203) at the base of a large tank. If the height of water in the tank is 15m (a) what is the speed of water escaping through the hole? (b) Calculate the amount of water (in cubic meters per second) escaping the tank.
asked by Jamie 
Physics
An object (m=2.85 kg) is attached to a diskshaped pulley. The diameter of the pulley is 0.242 and its weight is 7.272 N. Suppose the object is allowed to fall (a) What is its linear acceleration? (b) What is the angular acceleration of the pulley? (c) How
asked by Hank 
stats
what is the distinction between repeated measurements and matched items?
asked by jason 
Physics
Two banked curves on a highway have the same radius. Curve A is banked at 13 degrees and highway B is banked at 19 degrees. A car can travel around curve A without relying on friction at a speed of 18 m/s. At what speed can this car travel around curve B
asked by Scott 
Physics
A toy is attached to the cieling by a string. As the toy flies around in a horizontal circle with a radius 45 cm, the string makes an angle of 60 degrees with the cieling. What is the speed of the toy?
asked by Sarah 
Physics
A man lies on a plank of negligible mass supported by two scales 2.50 m apart. His head rests on the left scale which is also the axis of rotation. If the left scale reads 290 N and the right scale reads 122 N calculate his mass.
asked by Rick 
Physics
Find an expression in terms of M, mu, and theta for the speed of waves on the string.Express your answer in terms of the variables M, mu, theta, and appropriate constants. The picture shown is just of a block with mass m on an inclined frictionless surface
asked by Mel 
math VERY URGENT+IMPORTANT
what is 6 minus 2 and one half? please explain answer
asked by Anonymous 
ELA
I need a few suggestions of store names. Its a grocery store in Manhattan. Thx
asked by S 
algebra
8x^218x5
asked by Anonymous 
Geometry
Isosceles triangle base is 7 more than onehalf times the legs. Perimeter is 22 centimeter Find length of each leg
asked by Gia. 
history urgent please!
The most dominant merchant and traders of the Indian Ocean Trade network were Chinese merchants Muslim and Arab merchants African merchants Australian and Oceania merchants European Merchants
asked by Jim 
math
the temperature on a cold december morning fell from 37 degrees to 4 degrees. how many degrees did the temperature fall? Please explain answer
asked by Anonymous 
science
what happens to a liquid when it releases enough energy?
asked by m 
Math
What is 23 times 17 in arrays and algorithm
asked by Kristian 
Science
What fraction of the thickness of the thickest continental crust is the thickness of the oceanic crust? Give your answer as a reduced fraction.
asked by Kai 
Algebra 2
Energy Use Light Output 35 2250 50 4000 70 5800 100 9500 150 16000 What is the quadratic model for the light output with respect to use energy use? I don't understand this at all Please help ):
asked by Ana 
science
The force that every mass exerts on every other mass is called _________. A. gravity B. pull C. matter D. weight
asked by dee 
Math
x = 3, 10, 5, 8, _, 12, _ y = 7, 10, _, _, 5, _, _
asked by Brandon 
Math
x = 3, 10, 5, 8, _, 12, _ y = 7, 21, _, _, 5, _, _
asked by Brandon 
5 th grade math
what is the volume of a rectangular prism with a length of 4 inches, a width of 4 inches and a height of 2 inches?
asked by Anonymous 
math
The cost "C" of operating a concretecutting machine is related to the number of minutes "n" the machine is run by the function: C(n)=2.2n⋀266n+655. For what number of minutes is the cost of running the machine a minimum? What is the minimum cost?
asked by Anonymous 
Physics
A person jumps from a tower 5 m high. When he strikes the ground below, he bends his knees so that his torso decelerates over an approximate distance of 0.70m. If the mass of his torso (excluding legs) is 50kg, find the force exerted on his torso by his
asked by Marusa 
math
lynda cut 3.2 meters of ribbon into equal size pieces. each piece was longer than 0.1 meter, but shorter than 2.o meters, with lengths in increments of 0.02 meters. How many pieces did lynda cut,and how long was each piece?
asked by Mashiya 
WOODVILLE ELEMETARY SCHOOL
I NEED HELP AT MATH CAN YOU HELP ME PLEASE...
asked by ALWALEED 
5th grade math
i need help
asked by jacob 
math
what is the mean of 33,36,39,45,29,58
asked by mckenz 
Physics
A vibrator in a ripple tank vibrates with a frequency of 3.0 Hz and an amplitude of 2.5 cm. The resulting waves travel away from the source with a speed of 2.5 cm/s, passing under various markers floating on the water. (a)In what direction(s) do the marker
asked by Raju 
Geometry:(
The surface of a rectangular prism is the sum of: the product of twice the length L and the width w the product of twice the length and the height h and the product of twice the width and the height. **** Write an expression that represents the surface
asked by Cassie:) 
7th grade math help Ms. Sue please
How do you find the sales tax of something? Here is one of my problems: The price of three dolls are $12.99. What is the price of the dolls with a 5% sales tax? Show all of your work! I cannot figure out how to put up an equation and solve this problem.
asked by Delilah 
math
The height h(in ft) above the ground of a submarinelaunches missile is given by the function h=16t+96t+80 where t represents the time in seconds. Scetch a graph of this function. Determine the time at which the missile leaves and returns to the water.
asked by kristy 
physics
A 346 kg merrygoround in the shape of a horizontal disk with a radius of 1.7 m is set in motion by wrapping a rope about the rim of the disk and pulling on the rope. How large a torque would have to be exerted to bring the merrygoround from rest to an
asked by Alyssa 
Precalculus
You are given a 12"x18" piece of construction paper. You are to cut a square out of each corner in order to create a 3dimensional opentop box. What size squares would you need to cut in order to maximize the volume of the box?
asked by John 
science
3. Describe each stage of the flow of information starting with DNA and ending with a trait
asked by April 
7th grade math help Ms. Sue quick please
HELLPPP ME PLEASE I ONLY KNOW THE LAST QUESTION! I need to have more than three steps! Please help! B. A discount of 20% is applied to the doll’s original price of $12.99. What is the price of the dolls with the discount applied to $12.99 + 5% tax? Show
asked by Delilah 
math
how many minutes are there in 6 hours and 45 minutes
asked by Joe 
math
estimate each quotient 246.78/83?
asked by m 
chem101
Endothermic reaction equilibrium: BiCl3(aq) + H2O(g) = BiOCl(s) +2HCL(aq) + 2 HCl at a point at which the sollution is colorless and a small minute amoount of BiOCl(s) is observed. for the folowing questions 1to 5: a. state which way the reaction shift in
asked by audrey12 
chemistry
a. Find the amount of solute based on this information Volume = 500 ml Concentration of solution= 15% (w/w) Solute (molar mass) = H2SO4 is 98.0g/mol b. Find the molar mass Amount of solute= 117.0g Volume of solution= 2.00L concentration of a solution= 1.0M
asked by vince11 
Math
There are 18 green blocks in a bag THere are 3 white blocks for every 2 green blocks Which proportion can be used to find w, the total number of white blocks in the bag? A.18/w=3/2 B.18/w=2/3 C.3/18=2/w D.2/3=w/18 How do I solve
asked by Jerald 
PHYSICS  PLEASE HELP
A 66 kg human sprinter can accelerate from rest to 11 m/s in 3.4s. During the same interval, a 35 kg greyhound can accelerate from rest to 20 m/s. Compute (a) the change in kinetic energy of the sprinter. (b) the change in kinetic energy of the greyhound.
asked by Anonymous 
math
how do i make a story problm with a ratio table and awser it
asked by kaitlin:) 
Math
Write 91, 008.34 in word form.
asked by Gio 
music
how can i write music and what is the write letters
asked by kaitlin:) 
Light Energy Problems
The binding energy of electrons in a metal is 194 kJ/mol. Find the threshold frequency of the metal.  The heat of fusion of ice is 6.00 kJ/mol. Find the number of photons of wavelength = 6.78×10^−6 m that must be absorbed to melt 6.80 g
asked by Amy 
Physics
A 17kg child slides down a 2.7m high playground slide. She starts from rest, and her speed at the bottom is 1.8 m/s. What is the change in the thermal energy of the slide and the seat of her pants?
asked by Joan 
English
Read each sentence then write which word should be followed by a comma My dog has a collar, a leash and several toys. leash? Waldo dashes through the house out the door, and around the yard. house? Luis walks hiss doing in the morning, after school and
asked by Jerald 
Microeconomics
The Burning Belly Taco Stand is considering buying some new special ovens. Each oven will cost $1,000, and will last for 2 years before it wears out. The ovens will be used to make the Taco Stands famous "Burning Ring of Fire" tacos, and will generate a
asked by Jessica 
math
A bowl of fruit contains 4 apples, 5 oranges, and 3 bananas. In how many ways can 3 oranges be selected?
asked by Anonymous 
Physics
A car is traveling at 10 m/s. By what factor does the car's kinetic energy increase if its speed is doubled to 20 m/s?
asked by Joan 
English
Write the word that should be followed with a comma We hiked across town, through the woods and into the cave. woods? Tiffany, Christina and Paige are down the hall in Room 101 Christina? Do you want to go to the park, to the beach or to the parade? beach?
asked by Jerald 
Chemistry
Suppose I put 1 billion bacteria in a 10 ml tube of saline, mix well, and label this tube A. Answer the following questions: 1. Take 1 ml from tube A and put it in an empty tube B. What is the concentration and number of bacteria in tube B?
asked by Laura 
Physics
Part A: A cardinal (Richmondena cardinalis) of mass 4.50×10^−2 kg and a baseball of mass 0.142 kg have the same kinetic energy. What is the ratio of the cardinal's magnitude p(c) of momentum to the magnitude p(b) of the baseball's momentum? Part B: A
asked by Mary 
English
Reach each sentence if it is correct write c. if it has an error in commas, put the word in () that should be followed by a comma and add the comma The cafeteria is serving chicken soup vegetable stew, or chilli. chicken soup in () and a comma after soup
asked by Jerald 
Chemistry
Suppose I put 1 billion bacteria in a 10 ml tube of saline, mix well, and label this tube A. Answer the following questions: 1. Take 1 ml from tube A and put it in an empty tube B. What is the concentration and number of bacteria in tube B?
asked by Laura 
Maths
Given the quadratic function y =3x^2+10x8 (i)Find the yintercept. (ii)Find the xintercept. (iii) Calculate the axis of symmetry. (iv)Find the coordinates of the vertex (v)Sketch the graph of the above function.
asked by Shane 
English
Baking is a major project for the holidays. Is the verbal baking? Is this a gerund or a participle and why? Baking in the oven, the bread smelled delicious. Is the verbal baking in the oven? Is this a gerund or a participle and why?
asked by Emily 
physics
A cylindrical ﬁshing reel has a mass of 0.899 kg and a radius of 5.21 cm. A friction clutch in the reel exerts a restraining torque of 1.43 N · m if a ﬁsh pulls on the line. The ﬁsherman gets a bite, and the reel begins to spin with an angular
asked by Jared 
English
Read each sentence. Identify the comma error and put Add or Omit on the line to show how to correct the sentence. Then put the word in () before the error That shiny sleek car is new shiny add Courtney brought a delicious ham turkey, and beef sandwiches
asked by Jerald 
math
Estimate each quotient 535.6/35?
asked by b 
Algebra
please help! Noah knows that his friend Ryan uses 2 small chlorine tablets each week to maintain his 10,000 gallon pool: 1)Write a direct variation equation that relates c and g, where c is the number of chlorine talets and g is pool volume in gallons.
asked by Andrea 
7th grade math
1. Price of the dolls: $12.99 A. Price of the dolls with a 5% sales tax. Show all of your work! [4 points] B. A discount of 20% is applied to the doll’s original price of $12.99. What is the price of the dolls with the discount applied to $12.99 + 5%
asked by Delilah 
physics
A uniform disk of radius 0.48 m is mounted on a frictionless, horizontal axis. A light cord wrapped around the disk supports a 1.4 kg object, as shown. When released from rest the object falls with a downward acceleration of 3.6 m/s^2. What is the moment
asked by Jared 
physics
A cylindrical 7.25 kg pulley with a radius of 0.864 m is used to lower a 7.13 kg bucket into a well. The bucket starts from rest and falls for 4.51 s. What is the linear acceleration of the falling bucket? The acceleration of gravity is 9.81 m/s^2.
asked by Alyssa 
math
how do you get the percent of 1 over 12
asked by annonymous 
Math
Miss Mary bought 2 liters of coke, 3 times as much Pepsi and 5 liters of sprite. How many liters of soda did she purchase?
asked by Nina 
English
Read each sentence COrrect any misplaced or missing commas. Rewrite the sentence. The old restored building is downtown. The old,restored building is downtown. THe moody grumpy boy is Chris. The moody,grumpy boy is Chris. Alyssa brought those, delicious
asked by Jerald 
Phoenix
Why do you think Windows is so prevalent? What do the other systems have to offer that Windows does not? Who uses the other systems?
asked by Michelle 
Maths
Solve for x,leave your answer in surd form. 2/x+2 + 3/x+1=5
asked by Shane 
Chemistry
What is the general trend in the acidity of Period 3 oxides moving across the Periodic table from left to right? (Be sure to refer to the term acidity.)
asked by Janet 
CHM
How to balance the following equation: Na(s) + H2O(l) yields?
asked by Adam 
Algebra 1
The gardeners at Middleton Place Gardens want to plant a total of 45 white and pink hydrangeas in one flower bed. In another flower bed, they want 120 hydrangeas. In this bed, they want 2 times the number of white hydrangeas and 3 times the number of pink
asked by Anonymous 
physics
A solid sphere of radius 23 cm is positioned at the top of an incline that makes 23 degree angle with the horizontal. This initial position of the sphere is a vertical distance 3 m above its position when at the bottom of the incline. The sphere is
asked by Alyssa 
Maths
Point P(8,3)and Q(6,9)are joined by a straight line.Find the equation of the line joining the midpoint of PQ to the origin.
asked by Shane 
Physics Energy and Work
A 20.0 kg child on skis, initially at rest, slides 2.0 m down an incline at an angle of 20.0 degrees with the horizontal. If there is no friction between incline and skis, what is the kinetic energy of the child at the bottom of the incline?
asked by Rose 
English
Read each sentence. Put the word in () that should be followed by a comma. Then add the comma After school today we'll go to the mall today in () and a comma after it Oh what a mess I've made! Oh in () and a comma after it Jordan can you help me with the
asked by Jerald 
Calculus
Find an antiderivative of q(t)=(t+8)^5
asked by James 
algebra
an 80 pound bag of concrete cost $4 and covers 2.5 square feet how much will cost to cover 504 square feet
asked by Anonymous 
Maths
State the xintercepts of the graph of y=1x^2
asked by Shane 
math
(7612)(48divided by 8)2
asked by Leena 
Chem 2
Describe how to make 175mL of a .10M tin(II) chloride solution??
asked by Destry 
Math
name the property and explain 26×(2×8)=(26×2)×8
asked by Gio 
Math
if the lateral surface area of a regular square pyramid is 200 inches square how do I find the volume?
asked by JOdi 
Math: algebra 1
3. Which method would be the simplest way to solve the system? y =1/2 x 2x + 3y = 28 A.) graphing B.) substitution C.) elimination D.) distributive I think it is B.
asked by Timothy 
Physics
A satellite in an elliptical orbit has a speed of 9.00km/s when it is at its closes approach to the Earth(perigee). The satellite is 7.00x10^6 m from the center of the Earth at this time. When the satellite is at its greatest distance from the center of
asked by Lelia 
Algebra
Joyce combines 9 atoms of hydrogen and 3 atoms of nitrogen to make 3 molecules of ammonia. write a direct variation equation which relates atoms of hydrogen to atoms of nitrogen. How many nitrogen atoms does Joyce need to form ammonia molecules using 51
asked by Andrea 
Math: Algebra
1. Which method would be the simplest way to solve the system? 7x + 5y = 19 –7x – 2y = –16 A.) graphing B.) substitution C.) elimination D.) distributive I think it is C.
asked by Timothy 
College Physics
Suppose a planet is discovered that has the same total mass as the Earth, but half its radius. Calculate the acceleration due to gravity on the surface of this planet.
asked by Katie 
Math: algebra 1
6. In which quadrant does the solution of the system fall? y = x – 1 y = –3x – 5 A.) I B.) II C.) III D.) IV I think it is c.
asked by Timothy 
English
Please help i need to put this sentences in order and combine them in order to make sense. 1. The pizza sits on the table. 2. It is fresh from the oven. 3. It is in the middle of the table. 4. Its crust rises up. 5. The crust is thick. 6. The crust is
asked by Lily 
Math: Algebra 1
2. What is the solution of the system? 7x + 5y = 19 –7x – 2y = –16 A.) (2, 1) B.) (1, 2) C.) (7, 5) D.) (–7, –2) I think it is A.
asked by Timothy 
7 grade math
a helicopter blade spend 775 times in 3 mintues find the rate in revolutions per second
asked by Kim 
math
hi, i don't understand the homework that says show how to make one adden a ten. example: 38+26= Thanks
asked by Gigi 
English
Read the sentence. Rewrite each sentence adding the comma needed after the introductory word, phrase, or clause. Besides I don't like your idea for the project. Besides, I don't like your idea for the project. Throughout the class I kept sneezing
asked by Anonymous 
english
Is upset an action verb? Is were an conditional verb?
asked by Sam 
English
Is planned a condition or action verb? Is shower a condition or action verb? Is wears a condition or action verb?
asked by Sam 
math((PLEASE HELP!))
If two numbers are written in scientific notation. how can you tell which number is greater? Where on a number line does the value of a positive number in scientific notation with a negative exponent lie?
asked by Maryam :) 
Math
If the ratio of girls to boys on the track team is 5 to 6 which of these shows possible numbers of girls to boys on the track team? A.24 girls 20 boys B.50girls 56 boys C.60 girls 50 boys D. 20 girls 24 boys D?
asked by Jerald 
science
If you toss a coin five times and it lands heads up each time, can you expect the coin to land heads up on the sixth toss? Explain. Please help! Thanks!
asked by sam 
Grammar
The colon is a frequently used mark of punctuation that is used in a large variety of cases. A) True B) False I answered A
asked by Marie 
science
Mendel realized that the principles of probability could be used to _______ the results of genetic crosses. What's the blank? please help! thanks a bunch!
asked by kelly 
7th grade art Ms. Sue please
1. This term refers to a subject in artwork that has been simplified and rearranged. (1 point) nonobjective linear semiabstract objective 2. This term refers to artwork that does not have a reference to a subject or object. (1 point) representational
asked by Delilah 
math
How do I convert 5sq.yd. to sq.ft.
asked by Math Geek 
science
In cattle, red hair and white hair are codominant. Cattle with both white hair and red hair are what? please help! thanks!
asked by sarah 
science
What is the alleles of pea pot parents and the possible allele combinations of the offspring. Both parents are tall and 3 offsprings are tall while the other one is short. I don't get this! Please help! Thanks!!
asked by kelsey 
math
pedro swam some laps in the pool and then swam 2 more.... algebraic expression
asked by m 
Algebra 2
Suppose you invest $500 at an annual interest rate of 8.2% compounded continuously. How much will you have in the account after 15 years?
asked by Deavan 
Algebra II
Write an equation for a parabola that opens upward from its vertex at (4,3). What is the equation of its line of symmetry?
asked by Sam 
chemistry
how would you prepare 250 mL of a .1 M C12H22O11 starting with 2.5M C12H22O11
asked by Julie 
Math (5th grade )
Kathy's mom has made a batch of lemon bars. Her treats are in a rectangular pan that measures 12" x 8". She will cut a vertical and horizontal live every 2 inches along the length and width of the pan. How many bars will each person receive
asked by Tim 
Math
Subtract 5 from 8. Then multiply by c. Which of the. Following expressions matches the statement above? A.(85) x c B.(58) x c
asked by Kai 
Math
If the ratio of children to parents is 3 to 2 which of these shows possible numbers of children to parents? A.60 children 90 parents B.169 children 112 parents C.112 children 169 parents D.170 children 115 parents B? There are 2 men teachers to every 5
asked by Jerald 
Science 8R  help
How does the Law of conservation of energy compared to the conservation of matter? please help
asked by Laruen 
math
yancey collects plastic banks. He has three different banks: a pig,a cow and a horse. How many ways can Yancey arrange his banks on a shelf?
asked by mary 
Math
A spinner is divided into 8 equal sections, Each section is either blue or yellow. THe spinner was spun 40 times. It landed on a yellow section 10 times. Which proportion can be used to find the number of sections Y, that could be expected to be yellow? A.
asked by Jerald 
Grammar
When transcribing ratios numerically, you use a _____ to replace the word “to.” A) colon B) comma C) period D) semicolon I answered D
asked by Marie 
Math
Divide18 by g. Then, subtract 7. C. 18/g7 Is this right?
asked by Kai 
Chemistry
3C3H8 + 20H2CrO4> 9CO2 + 10Cr2O3 + 32H2O Suppose you want to make 1.50 g of chromium (III) oxide, how many ml of 6.25M chromic acid will you need to use if the percent yield of the reaction is 68.6%?
asked by Michelle 
English 8R  help!!!!! (Project)
Create a power point presentation that illustrates words that pertain to the rural environment.  Select a letter from the alphabet  Make a list of 1015 words or terms that begin with that letter  Create power point that defines each word  Provide
asked by Laruen 
AP Chemistry
iron has a density of 7.86 g/cm3 and crystallizes a body centered cubic lattice. Show that only 68% of a body centered lattice is actually occupied by atoms, and determine the atomic radius of iron
asked by Shayla 
science
what is the alelles of a tall plant.
asked by samuel 
science
what is the alelles for 3 tall plants and 1 short plant that are offsprings and have both tall parent plants?
asked by jacobt 
math
What's the inequality ? the crowd that heard the President speak was estimated to be 10000 people.The actual crowd could be 750 people more or less than this. what are the possible values for the actual crowd size?
asked by Sara 
algebra
A submarine is 700 meters below the surface of the ocean. it is ascending at a rate of 35 meters every minute. What does x represent and What y represent
asked by jenny 
coding
This 35 years old female patient has carcinoma of the upperouter left breast. She had a lumpectomy performed and a sentinel lymph node biopsy of the axillary lymph node. The pathology report for the lymph node. Diagnosis code with POA: I do not how to
asked by Anonymous 
physics
After being struck by a bowling ball, a 1.4kg bowling pin sliding to the right at 4.5 m/s collides headon with another 1.4 kg bowling pin initially at rest. Find the final velocity of the second pin in the following situations: a)The first pin moves to
asked by mariah 
PreCalculus  Find Inverse
Find the inverse of f(x) = x^3, algebraically .
asked by Hollaaa 
Math
Three out of every 45 tickets sold in a food bank raffle will win a prize. if Eli and his friends bought 15 tickets, which proportion can be used to predict w, the number of prizes they would expect to win? A.3/45=15/w B.3/w=15/45 C.3/45=w/15 D.w/15=45/3
asked by Jerald 
College Physics
A satellite in an elliptical orbit has a speed of 9.00km/s when it is at its closes approach to the Earth(perigee). The satellite is 7.00x10^6 m from the center of the Earth at this time. When the satellite is at its greatest distance from the center of
asked by Lelia 
Geometry
Given: and mEGFÚ=60 mAGFÚ=‹90; Prove: mAGBÚ=‹30.
asked by Megan DiOrio 
english
hi ive been reading a book called, the berlin boxing club, and one of my hw assignments say i need to find 10 quotes in the book and im having trouble finding them. can u please help me? :)
asked by katie 
Math
Add d and 7 then divide by 3
asked by Kai 
To Ms. Sue or any other teachers on Jiskha
Can some one please help with with my science post because I'm struggling.
asked by Laruen 
Physics
three rotating, uniform disks that are coupled by belts. One belt runs around the rims of disks A and C. Another belt runs around a central hub on disk A and the rim of disk B. The belts move smoothly without slippage on the rims and hub. Disk A has radius
asked by emma 
geometry
Write a flowchart proof. Given:
asked by sherianna johnson 
geometry
A rectangle has a perimeter of 114m and an area of 807m^2. What are the dimensions?
asked by taylor 
Algebra
a helicopter that is 200 meters above the ground descends at a rate of 2 meters per second. The altitude of the helicopter after t seconds is given by h(t)=20002t. 1)give the range of this function 2)give the domain of this function.
asked by Andrea 
spelling
i cant understand v/cv and vc/v patter mean .can you giv me exemple
asked by alba 
math
Find equation of the line that passes through the points (2/3,5/4) and (3,5/6). write your answer in slopeintercept form and standard form with integer coefficients.
asked by emmy 
chemistry
a saturated solution of barium chloride at 30 degrees Celsius contains 150 g water. how much addition barium chloride ca be dissolved by heating this solution to 60 degrees celsius? bacl2 at 30 degrees= 38.2 bacl2 at 60 degrees= 46.6
asked by sam 
math
Yuki's age is four years more than onefourth of Xena's age. Xena's age is 21 years and 6 months more than seveneighths of Yuki's age. How old are Xena and Yuki?
asked by emmy 
chemistry
calculate number of dichlorine molecules in a 5.00ml container at 40 degrees Celsius and a pressure of 2.14 x 10^4 Pa.
asked by matt 
Grammar
A compound modifier acts as a _____ unit modifying a noun. A) compound B) coordinate C) plural D) single I answered D
asked by Marie 
chemistry
how do i find the grams of potassium chloride per 100g of water in the saturated solution
asked by sam 
algebra1
M5P3*(2M6Q5)1 qm0
asked by frances 
Ph CHEM
A solution is found to contain 1 x 104 OH− ions, determine the pH of this solution. I did this problem and got 4 but it is not going in as correct. log(1*10^4)=4
asked by Lara 
Chemistry
Objectives To determine the molecular weight of a volatile liquid. Discussion [This laboratory exercise was adapted from one in Beran and Brady's Laboratory Manual for General Chemistry , John Wiley & Sons, 1982] The Dumas Method for determining the
asked by Veronica 
Grammar
A compound modifier is hyphenated when it comes directly after the noun it modifies. A) True B) False I answered B
asked by Marie 
English
1. He is the oldest of the three. 2. he is the oldest of three. (Which one is right?) •English  Ms. Sue, Tuesday, November 27, 2012 at 5:15pm They are both correct. •English  kaitlin:), Tuesday, November 27, 2012 at 6:26pm number 1 is correct because
asked by rfvv 
math
a farmer had 24 animals. some of the animals were chicken and some were dogs. altogether there were 56 legs. How many of the farmer's animals were chickens and how many were dogs?
asked by cindy 
math
j has a bag of 23 pieces of fruit the bag has 10 banana chips. what is the probability that j will choose a banana chip when he reaches into the bag? how to solve this problem
asked by genesis 
stats
The Ledd Pipe Company has received a large shipment of pipes, and a quality control inspector wishes to estimate the average diameter of these pipes. A random sample of 18 pipes produces an average diameter of 2.56 mm with a standard deviation of 0.05 mm.
asked by johnny 
Exceptional Child
James wants a new toy. He says, "James toy". He is using: A. short sentences B. telegraphic speech. C. baby talk. D. holophrastic speech.
asked by Sally 
Math
Jeremy drinks 2 pints of milk every 3 days How much milk would Jeremey drink in 60 days? A.20qt B.25qt C.30qt D.40qt D? The chart below shows the survey results for 50 students and their candy preferences There are 250 students at the Valentines Dance.
asked by Jerald 
calculus
An open box is to be constructed by cutting corners out of a 9in by 12in sheet of cardboard and folding up the sides. Find the dimensions which will maximize volume.
asked by cookie 
calculus
Find the point (x,y) on the curve y=sqrt(x+4) closest to the origin.
asked by cookie 
Math
If you get a confidence interval of (42,58) what is your margin of error?
asked by Andrew 
Physics
A figure shows a section of a long tube that narrows near its open end to a diameter of 1.0 mm. Water at 20 degrees celsius flows out of the open end at 0.020 L/s. What is the gauge pressure at point P, where the diameter is 4.0 mm?
asked by Cristian 
Physics
A string is wound around a solid cylindrical spool of mass 9.7 kg and radius 0.1 m and is tied to the ceiling. If the spool is released from rest and rolls on the string, and the distance to the ﬂoor is 6.14 m, how long will it take the spool to hit the
asked by Sian 
English
Do anyone read the story "the road" or watch the movie? i have some questions.
asked by Mohammad 
college algebra, Please help!!
find the f and g, so that fOg= H H(x)=sqrt x^2+17 please show work
asked by Heather 
physics
A 160kg horizontal beam is supported at each end. A 330kg piano rests a quarter of the way from one end. What is the vertical force on each of the supports?
asked by Melissa 
chemistry
Into a 1.00 liter flask are placed 0.820 moles of NO and 0.223 moles of N2 and O2. What are the concentrations of NO, N2, and O2 at equilibrium? For the molarity for each, I got this: NO= .027 M N2= .0079 M O2= .0069 M balanced equation: 2NO(g) N2(g) + O2
asked by Victoria 
chemistry
intermolecular forces in caffeine
asked by Anonymous 
Physics
A basketball of mass 0.70 kg is dropped from rest from a height of 1.22 m. It rebounds to a height of 0.64 m. How much mechanical energy was lost during the collision with the floor? A basketball player dribbles the ball from a height of 1.22 m by exerting
asked by Physics 
Algebra 1
What is 5x cubed over x squared multiplied by 3x to the fourth power over 6x?
asked by Maddy 
math
Find the rule for each function table m n 15 12 10 8 5 4 0 0
asked by Kyle 
Grammar
A compound modifier acts as a _____ unit modifying a noun. A) compound B) coordinate C) plural D) single I answered D
asked by Marie 
PreAlgebra
Volume of a cube with side length of 26.4 meters I need this by 11/21/12 ASAP
asked by Zack 
Finance
5.3 The manager of a large computer network has developed the following probability distribution of the number of interruptions per day: Interruptions (X) P1X2 0 0.32 1 0.35 2 0.18 3 0.08 4 0.04 5 0.02 6 0.01 a. Compute the expected number of interruptions
asked by Elaine 
Grammar
A compound modifier is hyphenated when it comes directly after the noun it modifies. A) True B) False I answered B
asked by Marie 
ENGLISH
hi ive been reading a book called, the berlin boxing club, and one of my hw assignments say i need to find 10 quotes in the book and im having trouble finding them. can u please help me? :)
asked by katie 
calculus
Find the point (x,y) on the curve y=sqrt(x+4) closest to the origin.
asked by cookie 
Grammar
If the word “very” or an adverb that ends in “ly” is part of your compound modifier, you do not use a hyphen in the compound modifier. A) True B) False I answered A:)
asked by Marie 
college algebra, Please help!!
change the exponential expression to an equivalent expression involving a logarithm. 1.9=a^6 a=1.1129 is this the correct logarithmic expression???
asked by Heather 
English
I want to put these words in a sentence that makes sense. Many will think that my voice doesn't matter for people my age. It doesn't sound right to me.
asked by Emma 
Grammar
Select the correctly punctuated sentence: A) He will follow up in 2 weeks. B) He will followup in 2 weeks. C) He will followup in 2 weeks. Answer A
asked by Marie 
Grammar
“Follow up” is never a verb. A) True B) False I answered F
asked by Marie 
math
what is the equivalent of 1/5?
asked by Ry 
Math
You decide to make a scale drawing of your bedroom. YOur bedroom measures 12 ft. wide by 20 ft. long. If you are using an 8.5" x 11" paper, whate scale will you use. Explain.
asked by May 
U.S history
what are the 5 states admitted next to the U.S.after 1849 ? please help .
asked by marie 
physics
A baseball is thrown such that it is in the air for 4 seconds and lands 100 m away. Find the initial vertical and horizontal components of the baseball's velocity.
asked by mia 
physics
An arrow is shot at an angle such that it's horizontal velocity is 40 m/s and it's vertical velocity is 20 m/s. Find the horizontal distance the arrow will travel before hitting the ground.
asked by mia 
math pls help Ms Sue
Find the rule for the function table m n 15 12 10 8 5 4 0 0
asked by Kyle 
math
Only 40% of people between the ages of 18 and 24 read a daily newspaper. Write the percent as a fraction in simplest form.
asked by ........................... 
College Physics
A satellite in an elliptical orbit has a speed of 9.00km/s when it is at its closes approach to the Earth(perigee). The satellite is 7.00x10^6 m from the center of the Earth at this time. When the satellite is at its greatest distance from the center of
asked by Lelia 
math
Yuki's age is four years more than onefourth of Xena's age. Xena's age is 21 years and 6 months more than seveneighths of Yuki's age. How old are Xena and Yuki?
asked by emmy 
Physics
A student sits on a rotating stool holding two 3.4kg objects. When his arms are extended horizontally, the objects are 1.0 m from the axis of rotation and he rotates with an angular speed of 0.75 rad/s. The moment of inertia of the student plus stool is
asked by Jessica 
math
Find equation of the line that passes through the points (2/3,5/4) and (3,5/6). write your answer in slopeintercept form and standard form with integer coefficients.
asked by emmy 
college algebra, Please help!!
solve the following logarithmic equation 2log2(lower than g)^(x2)+log2^2=3 x=?
asked by ladybug,I need help please. 
calculus
What is the exact value of sin(2 theta) if cos (theta)=3/5 and (theta) is in quadrent 4? 12/25 24/25 12/25 7/25 24/25
asked by Shasha 
CHEMISTRY
The halfcell, Tl  Tl+(1 mol L1), is connected to a Pt  H+  H2(1 atm) halfcell in which the concentration of H+ is unknown. The measured cell voltage is 0.0841 V and the Pt  H2  H+ halfcell is the cathode. Standard reduction potentials are given on
asked by sabrina 
CHEMISTRY
Ethylamine, CH3CH2NH2, is an organic base with pKb = 3.367 at 298 K. In an experiment, a 40.0 mL sample of 0.105 mol L1 CH3CH2NH2 (aq) is titrated with 0.150 mol L1 HI(aq) solution at 298 K. (a) Write a balanced chemical equation for the neutralization
asked by sabrina 
math
aubrey can walk 4 1/2 miles in 1 1/2 hours. find her average aspeed in miles per hour.
asked by tayahni 
CHEMISTRY
Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br− and C9H7N is quinoline, an organic base with pKb = 6.24 at 298 K. If you like, you may
asked by sabrina 
calculus
Simplify the expression: tan(x)csc(x)
asked by Shasha 
trig
If tan y = 4/3 and y is in Q I'VE find cos 2y
asked by Maddie 
college algebra
solve the following exponential equation. 7^x=8 a. x= Write in exact solution b. then with that answer move the decimal 3 points over
asked by confused 
Chemistry
What is the mass of a sample of material that has a volume of 51.1 cm3 and a density of 6.31 g/cm3?
asked by Donna 
statistics
3. A researcher is interested in comparing the Christian maturity level of students who volunteer for community service versus those who do not. The researcher assumes that those who perform community service will have higher Christian maturity scores. The
asked by jennfier 
Geology
What observable characteristic is present with banding of metamorphic rocks that is not present in the layering of clastic sedimentary rocks?
asked by Sierra 
Calculus
Find the equation of the curve passing through P (1,2) whose slope is the square root of the product of the coordinates of any point on the curve.
asked by NF 
Geology
Which of the three rock families occurs most in new York state?
asked by Sierra 
Math (trigonometry)
How do you solve this trig identity problem without factoring? I just used @ to represent theta: sin^4@ + 2sin^2@cos^2@ + cos^4@ = 1
asked by Sammy 
trig
If tan y = 4/3 and y is in Q I'VE find cos 2y
asked by Maddie 
Physics
The velocity of the baseball as it leaves the bat is 38.2 m/s. Determine (a) the maximum height the baseball reaches, and (b) the total timke the baseball is in the air. Assume the baseball is caught at the same height above the ground as it was hit.
asked by Anonymous 
probability
two fair sixsided dice are rolled and the sum of the dots on the top faces is recorded. a) complete the table, showing the number of ways each sum can occur sum: 1 2 3 4 5 6 7 8 9 10 11 12 ways:1 2 3 b)use the table to find the probability of the
asked by mary 
Physics
How do you determine the displacement of a graph with lots of areas of displacement, do you add them all together?
asked by Anonymous 
Physics
How do you determine the displacement of a graph with lots of areas of displacement, do you add them all together?
asked by Anonymous 
Trigonometry
How do you solve this trig identity? Using @ as theta: Sin@1/sin@+1 = cos@/(sin@+1)^2 I've tried it multiple times but I can't seem to arrive at the answer.
asked by Sammy 
college algebra
use the properties of logarithms to find the exact value of the expression loglower 3^18  log lower3^6 **how do I make the three lower in the log equation?
asked by confused 
calculus
Which expression is equivalent to (sin x + 1)(sin x − 1)?
asked by meelizah 
math
Write the expression thrice the sum of m and 8
asked by elena 
Physics
A 4.0 kg wheel of 20 cm radius of gyration is rotating at 360 rpm. The retarding frictional torque is .12 N.m. Compute the time it will take the wheel to coast to a rest.
asked by Trevor 
Psychology
I need to do a presentation on gender development. We're supposed to have an activity that presents the topic or ties into the topic. I have searched the internet, but have not come up with anything for gender development specifically. Does anyone have any
asked by Anonymous 
Math :):):):):):):):):):):):):)
Sarsh is currently at 83.7% in math. She has just finished a worksheet that is out of 30. She got 30/30 which is full marks. What percent is she at now in math?
asked by Winnie 
Physics
A 4.0 kg wheel of 20 cm radius of gyration is rotating at 360 rpm. The retarding frictional torque is .12 N.m. Compute the time it will take the wheel to coast to a rest.
asked by Trevor 
Algebra
The perimeter of rectangle is 62 m. If the width were doubled and lenght were increased by 9 m, the perimeter would be 104m. What are the lenth and width of a rectangle?
asked by Anonymous 
social studies
Greenland and new guienea are two islands with the largest land areas in the world. To which hemipshers do they belong
asked by Anonymous 
calc
Convert theta= 225° to rectangular form.
asked by meelizah 
science/math
write and solve an algebraic equation to find the original mass of the sample of the radioactive isotope uranium 235, which has a halflife of 704 million years your sample is about 700 million years old and weighs 120 grams
asked by Justin 
college algebra
write the expression as a single logarithm In(x/x2)+In(x+2/x)In(x^24) Please show work
asked by Ladybug