Questions Asked on
May 3, 2011

Physics
Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 402 N and F2 = 364 N. (Assume up and to the right as positive directions.)(F1 is 10degrees and F2 is 30degrees) (a) What is the resultant of these two
asked by Dani 
chemistry
In the reaction 2SO2 (g) + O2 (g) 2SO3 (g), which change would cause the greatest increase in the concentration of SO3?
asked by rachel 
math
a fire fighter's 36 foot ladder leans against a building. the top of the ladder touches the buliding 28 ft above the ground. what is the measure of the angle of the ladder forms with the ground?
asked by Alberto 
Biology
Which term describes an organism's ability to maintain a stable internal environment? (1) reproduction (2) extinction (3) locomotion (4) regulation
asked by Keira 
PreCalc  Vectors
An airplane is flying with an airspeed of 660 Kilometers per hour. The wind is blowing from 345 degrees at 35 km/h. What direction should the airplane take so that, with the wind, the plane will be flying in a direction of 72 degrees? I can compute
asked by Joe 
Physics
An outfielder throws a 0.150 kg baseball at a speed of 26.0 m/s and an initial angle of 30.0°. What is the kinetic energy of the ball at the highest point of its motion?
asked by Dani 
physics
Calculate the force, required of the "deltoid" muscle to hold up the outstretched arm shown in the figure . The total mass of the arm is 2.9 kg.
asked by Cara 
careers school ties discussion questions
What was Dillon's fundamental problem in the move ''School Ties''
asked by ted 
trig confused.. pls help
A group of mountain climbers are using trigonometry to find the height of a mountain located in the Rockies. From point A, which is due west of the mountain, the angle of elevation to the top is 56 degrees. From point B, which is due east of the mountain,
asked by Mhy 
Physics
An electric motor rotating a workshop grinding wheel at a rate of 95 rev/min is switched off. Assume the wheel has a constant negative angular acceleration of magnitude 2.40 rad/s2. (a) How long does it take for the grinding wheel to stop? (b) Through how
asked by Dani 
Physics
A 7.80g bullet moving at 530 m/s penetrates a tree trunk to a depth of 6.2 cm. (a) Use work and energy considerations to find the average frictional force that stops the bullet. (b) Assuming the friction force is constant, determine how much time elapses
asked by Dani 
Physics
A ski jumper starts from rest 51.0 m above the ground on a frictionless track and flies off the track at an angle of 45.0° above the horizontal and at a height of 12.0 m above the ground. Neglect air resistance. (a) What is her speed when she leaves the
asked by Dani 
Chemestry
The covalent compounds ethyl alcohol and dimethyl ether have the formula C2H6O. However, the alcohol melts at 117.3 degrees C and boils at 78.5 degrees C the ether melts at 138.5 degrees C and boils at 23.7 degrees C. How could differences in forces
asked by Agustin 
science
2Al+3H2SO4> Al2(SO4)3+3H2 a.)determine the oxidation number of each element in both the reaction and products of this oxidationreduction reaction of aluminum and sulfuric acid. b.) what element is oxidized in this reaction? c.) what element reduces in
asked by michael 
math
The ratio of kangaroos to koalas is9 to5. If there were 414kangaroos how many koalas were there? 5/14=x/414 14x=2070 x=147r12 correct?? if this is correct what is the proper way to write the answer or would you just write it as it is shown?
asked by heather 
PHYSICS !!!!!!!!!!!!!!!!!!!!!!!!!!!!
a wave has a frequency of 2 Hz. find its period ? please show work.....
asked by HIMAR 
Chem22
Calculate ΔG (in kJ) for the reaction: CO2(g) + CCl4(g) = 2 COCl2(g) at 25oC under the conditions: CO2 = 0.120 atm, CCl4 = 0.162 atm, and COCl2 = 0.856 atm.
asked by Ryan 
chemistry
why would a polystyrene cup be used in an exothermic reaction between HCl and NaOH instead of a beaker?
asked by Betsie 
PreAlgebra
Bonita and Deion are using the spinners from the Making Purple game in Problem 2.1. They take turns spinning. If the colors on the two spinners make purple, Dion scores. If they do not make purple, Bonita scores. For this to be a fair game, how many points
asked by Tari 
stastics
A survey of drivers in the United States found that 15% never use a cell phone while driving. Suppose that drivers arrive at random at an auto inspection station. a. If the inspector checks 10 drivers, what is the probability that at least one driver never
asked by level crawford 
physics
Calculate the magnitudes of the gravitational forces exerted on the Moon by the Sun and by the Earth when the two forces are in direct competition, that is, when the Sun, Moon, and Earth are aligned with the Moon between the Sun and the Earth. (This
asked by Amy 
physics
a wheel starts from rest and rotates with a constant angular acceleration and reaches an angular speed of 12 rad/sec in 3 sec. find the angle through which it rotates in this time.
asked by diann 
MATHS
Evaluate with the help of Logarithms 1) 2391/3072 2.38*3.901/4.83
asked by sam 
Chemistry
How many grams of sodium azide are required to produce 31 grams of nitrogen
asked by Nikki 
Physics
A 55.0 kg ice skater is moving at 4.04 m/s when she grabs the loose end of a rope, the opposite end of which is tied to a pole. She then moves in a circle of radius 0.795 m around the pole. (a) Determine the force exerted by the horizontal rope on her
asked by Dani 
geometry
On a sunny day an office building casts a shadow that is 80 feet long. At the same time, a 5 foot person casts a 6 foot shadow. Determine the height of the office building to the nearest
asked by gjhjhvvjh 
Chemistry
What is the pH for the potassium propionate solution at the equivalence point?
asked by Mira 
algebra
a bag contains 4 red chips, 2 blue chips and 5 green chips. A chip is randomly removed from the bag, and then without replacing the first chip, a second chip is removed. What is the probability that both of the chips selected from the bag were blue?
asked by veronica 
physicsmomentum HELP PLEASE tesst in two days
A student flings a 2.3g ball of putty at a 225g cart sitting on a slanted air track that is 1.5m long. The track is slanted at an angle of 25 degrees with the horizontal. If the putty is travelling at 4.2 m/s when it hits the cart, will the cart reach the
asked by Syed 
business law
Steamatic of Kansas City Inc specialized in cleaning and restoring property damaged by fire, smoke, water, or other elements. It employed Rhea as a marketing rep. His duties included soliciting customers, preparing cost estimates, supervising restoration
asked by P 
how to write 2nd may 2011 in 5 letters without usi
how to write 2nd may 2011 in 5 letters without using numbers
asked by Anonymous 
Physics
Two objects with masses of 1.00 kg and 7.00 kg are connected by a light string that passes over a frictionless pulley as in the figure below. (a) Determine the tension in the string. (b) Determine the acceleration of each object. (c) Determine the distance
asked by Dani 
consumer math
Jane lives in Middleton, where the tax rate is 2.9%. Her property is assessed at $189,000. What is her tax?
asked by Anonymous 
6 Entropy
Using the thermodynamic data provided below, calculate the standard change in entropy when one mole of sodium nitrate is dissolved in water? S° (J/K•mol) NaNO3(s) 116.3 Na+(aq) 60.25 NO3–(aq) 146.4 Using the value you calculated, how will the
asked by Nicole 
Chemistry
What mass of NaCl can be dissolved in 7.50 X 10 (to the 2nd)grams of water at 25 degrees C?
asked by Nick 
science
The average velocity of molecules of nitrogen gas (N2) at room temperature is around 500 m/s. If you were to raise the temperature of the nitrogen gas by 50°C what is a good estimate for the speed of the molecules?
asked by aaronia 
Physics
A rifle with a weight of 30 N fires a 3.0 g bullet with a speed of 250 m/s. (a) Find the recoil speed of the rifle. (b) If a 675 N man holds the rifle firmly against his shoulder, find the recoil speed of the man and rifle. I got .245 m/s for the first one
asked by Dani 
cal
A ball is thrown directly upward from ground level with an initial velocity v(0) = 96 ft=s. Assuming that the ball’s only acceleration is that due to gravity (i.e., a(t) = ��32 ft=s2), determine the maximum height reached by the ball and
asked by fcv 
math
a 20ounce bag of popcorn costs $2.80. if the unit price stays the same, how much does a 35ounce bag of popcorn cost?
asked by natalie 
physics
A car tire rotates with an average angular speed of 29rad/s. In what time interval will the tire rotate 3.5 times? Answer in units of sec.
asked by fg 
SCI207
Does the world have enough resources 8 or 10 billion people to live decent, secure, happy, fulfilling lives? What do those terms mean to you? Try to imagine what they mean to others in our global village
asked by Anonymous 
Physics
For two identical satellites in circular motion around the Earth, which statement is true? a. The one in the higher orbit has more kinetic energy b. The one in the lower orbit has more total energy c. The one in the lower orbit has less total energy d.
asked by Lola 
College Bio
Imagine you are conducting fieldwork and discover two groups of mice living on opposite sides of the river. Assuming that you will not disturb the mice, design a study to determine whether these two groups belong to the same species. If you could capture
asked by Gregory 
geometry
Figure ABCD is a square. Side AB measures 10x – 7. Side BC measures 2x + 52. Find the value of x.
asked by Anonymous 
Physical Science
Four balls are dropped from a platform, 20 meters high. One ball is 5k, the other is 10kg, then 20kg, and 40kg. Which ball will experience the GREATEST change in kinetic energy, from platform to ground?
asked by MadiShiley 
Statistics
This is the first question..... For a population that has a standard deviation of 10, figure the standard deviation of the distribution of means for samples of size (b) 3. This is the second question....For each of the following samples that were given an
asked by Heather 
To mike: Spanish
I've deleted both of your posts asking for answers to Spanish tests. Jiskha tutors do not supply answers. Period. If you'd like to post a few questions AND your ideas about the answers, we'll be glad to help you.
asked by Ms. Sue 
chemistry
what is the half reactions for C12H22O11+ 8KClO2 => 12CO2 + 11H2O + 8KCl
asked by Laura Lyn 
grammar
I have to write 1234.567 in English word form. How do I write this number?
asked by Daniel 
Math
A flagpole casts a shadow 10 ft long. If a man 6 ft tall casts a shadow 4 ft long at the sme time of day, how tall is the flagpole?
asked by Edwqard 
Physics
The astronomical unit (AU, equal to the mean radius of the Earth’s orbit) is 1.4960E11 m, and a year is 3.1557E7 s. Newton’s gravitational constant is G=6.6743E11 m^3kg^1s^2. Calculate the mass of the Sun in kilograms. (Recalling or looking up the
asked by Roberto 
Comm 155
I need help finding the adverbs and adjectives in this sentence. I think I found some. Please help. As I started building up my credit, I took it slow so that I would not overextend myself at such a young age. Not long after I got my credit going I
asked by Bobby 
Math
Perform the following multiplication. Be sure answers are reduced to lowest terms. (Enter as an improper fraction.) 2 1/2 x 1 3/8 =
asked by Abby 
physics
Find the ratio of the gravitational force on the Moon due to the Earth to the gravitational force on the Moon due to the Sun. (The mass of the Earth is 5.97 1024 kg, the mass of the Moon is 7.36 1022 kg, the mass of the Sun is 1.99 1030 kg, and the average
asked by HELP!!!! 
Physics
objects with masses of 285 kg and a 585 kg are separated by 0.420 m. (a) Find the net gravitational force exerted by these objects on a 62.0 kg object placed midway between them.
asked by Dani 
Business/ideas
I need to answer questions about Prince tennis. One of the questions is "Because sales of Prince Sports in tennisrelated products depends heavily on growth of the tennis industry, what marketing activities might it use in the U.S to promote tennis
asked by Anonymous 
Science (Force and motion)
Explain how acceleration can be slowing down. Calculate the impact force of a 50 kg object travelling at 100km/hr. (Momentum = mass x velocity) Calculate the momentum of a tennis ball of 50 g moving at a velocity of 25m/s.
asked by maria 
English**
Alexander Pope's "An Essay on Criticism. Would this be considered a analogy or personification? Those RULES of old discover'd, not devis'd, Are Nature still, but Nature Methodiz'd; Nature, like Liberty, is but restrain'd By the same Laws which first
asked by Jeanna 
College Chemistry
How many grams of Al would be deposited from an aqueous solution of Al3+ with a current of 1.430A after 5hrs of deposition.
asked by Jude 
Math
WHAT IS THE SMALLEST FRACTION YOU CAN WRITE USING THE DIGITS 6, 7, AND 1
asked by Anonymous 
phisic
Treating air as an ideal gas of diatomic molecules, calculate how much heat is required to raise the temperature of the air in an 7.47 m by 14.9 m by 2.87 m room from 19.9°C to 21.7°C at 101 kPa. Neglect the change in the number of moles of air in the
asked by please help me 
physics
A 7 x 10^3kg bullet is fired into a 2kg wooden block initially at rest on a level surface. The bullet passes through the block and emerges with the velocity of 200m/s. The block slides 0.5m and stops. If the coefficient of friction between the block and
asked by Anonymous 
Math
There a re 30 students in a math class. Twelve belong to the computer club, and eight belong to the photography club. Three belong to both clubs. How many belong to neither?
asked by MathLuv 
psychology
please can someone help me? What are the characteristics of the following anxiety disorders? ◦ Generalized Anxiety Disorder ◦ ObsessiveCompulsive Disorder ◦ Phobic Disorder ◦ Specific Phobia Disorder
asked by Alex 
Chemistry
write the complete and net ionic equation for: HCl+NaOH>H20+NaCl HNO3+NaOH>H20+NaNO3
asked by Betsie 
science
two balls of masses 5m and m have radii 2r and r.their center of masses are separated by 10r.they move towards each other under their gravitational force. the distance moved by the centre of smaller sphere when the sheres touch each other?
asked by vamshi 
English I
Is this a persuasive topic for an essay: Does television today brainwash children and teens? Yes or No? How? My english teacher says he gets it but it needs to be more persuasive and specific. How do I that? Can you give me some examples? Please and thank
asked by Mike 
physics
a spring stretches by 3.90 cm when a 10gm mass is hung from it. if a 25 gm mass attached to this spring oscillates in simple harmonic motion, calculate the period of the oscillation
asked by diann 
History
Hi! Are there any reputable sites where I can access visual sources? This is relevant for modern history (I need a cartoon on Stalin/Kulaks/collective farms) and Ancient History where I'm studying Akhenaton. Thanks
asked by URGENT plz help 
Math
Jake spent 3/8 of his money on a book and 1/2 of what was left on a magazine. He now has $6.25. How much money did he start with?
asked by PLEASE HELP 
chem
true or false?? a)If there are no changes in the oxidation state of the reactants or products of a particular reaction, that reaction is a redox reaction. false? b)A reducing agent gets oxidized as it reacts. true?
asked by Rebekah 
chemistry
A chunck of silver has a heat capacity of 42.81 J/°C. If the silver has a mass of 181 g, calculate the specific heat of silver.
asked by Anonymous 
English
Hello. I need some language help. 1)"He is ready to cooperate with authorities, especially with the public prosecutor." Is the second "with" a must or is it possible to do without it: "to cooperate with authorities, especially the public prosecutor"? 2)Is
asked by Ilma 
Calculus
Evaluate the integral. HINT [See Example 3.] (Remember to use ln u where appropriate.) (4/x  1/4x^5 + 1/2x^7)dx
asked by Karen 
Physics
The astronomical unit (AU, equal to the mean radius of the Earth’s orbit) is 1.4960E11 m, and a year is 3.1557E7 s. Newton’s gravitational constant is G=6.6743E11 m^3kg^1s^2. Calculate the mass of the Sun in kilograms. (Recalling or looking up the
asked by Roberto 
math
How much would you repay the bank if you borrowed $7,900 at 4.3% annual interest for 6 years?
asked by Anonymous 
Math is this correct
There are 30 students in math class. Twelve belong to the photography club. Three belong to both clubs. How many belong to neither club? Is it 12?
asked by MathLuv 
physics
1.A cylinder rolls without slipping on a horizontal plane and then up an incline. The linear speed of the cylinder at the beginning is v. What maximal height h will the cylinder reach? 2.Helicopter of mass M holds stationary in the air fires a missile of
asked by Sandhya 
Math
Mutliply. (9t²  t 7)(4t²+9t1) AND Find the product. (5a+2)³
asked by Mimi 
physics
1.Three masses, m1, m2, and m3, are lying on a plane without friction and are connected by a string. A force F is applied to the mass m1 so that the whole system accelerates along a straight line. What is the tension of the string T between the masses m1
asked by Sandhya 
health
Please help... Staying fit requires all of the following EXCEPT _______. Aa rigid fitness plan Bphysical activity Chealthy habits Dhealthy eating 5. True or False: To develop a personal fitness plan you should consider which exercises and sports you
asked by mo 
Science
A 7kg brick is dragged across the floor by a horizontal force of 42 N. If a frictional force of 18 N also acts on the brick, what is its acceleration?
asked by Anna 
math
Navigation. The current in a typical Mississippi River shipping route flows at a rate of 4 mph. In order for a barge to travel 24 mi upriver and then return in a total of 5 hr, approximately how fast must the barge be able to travel in still water?Solve by
asked by carol 
life orientation
name two institution/communty organizations that surpporting or giving redress to air pollution
asked by lesego 
Math
I need the following definitions Please: point line intersecting lines parallel lines vertical lines horizontal lines acute angle obtuse angle right angle square rectangle trapezoid rhombus pentagon hexagon octagon triangle circle chord radius diameter
asked by Erin 
physics
A solid, horizontal cylinder of mass 8.0 kg and radius 1.30 m rotates with an angular speed of 5.50 rad/s about a fixed vertical axis through its center. A 0.250 kg piece of putty is dropped vertically onto the cylinder at a point 0.900 m from the center
asked by Dani 
Math
Jake spent 3/8 of his money on a book and 1/2 of what was left on a magazine. He now has $6.25. How much money did he start with?
asked by Haley 
English
1.Either Max or Neil (know, knows) the answer to that question. 2.All of us (want, wants) to see that movie next week. 3.Her aunt and uncle (own, owns) a ranch in Wyoming. 4.(Was, Were) you standing at the bus stop when the rain started? 1.knows 2.want
asked by Hayley 
geometry
how do you calculate the volume of a cylinder with two different sized bases? Radius of top base: 12cm, Radius of bottom base: 18cm, height: 8 units. How do you do this? i tried averaging them but it didn't give the correct answer... should be about 5730.3
asked by Anonymous 
Physics
A cannon is mounted on a railway flatcar, the muzzle elevated to 31.4° and pointed in the direction of the track. The cannon fires a 1.10metricton projectile at 1.10 km/s. (a) If the flatcar and cannon together have a mass of 36.0 metric tons (not
asked by Dani 
algebra
ne U.S. town, the annual consumption, b, of beef (in kg per person) can be estimated by adding 20 to half the years, t, since 1975.
asked by Anonymous 
science
How does mutation contribute to variation in a species? Evolution is the theory and natural selection is the process. Explain what this might mean. How can environmental factors determine a feature in a species?
asked by sarah 
Math
Find the product. (5a+2)³
asked by Mimi 
chemistry
finish the following equations and balance them, HCN+NaOH
asked by Digger 
probability
explain the probabilty of one event in a fair game with three possible outcome
asked by nathan 
math
write the place name for the 4 in the following number 3 624 786
asked by sonia 
College Chemistry
If the voltage of the cell is 0.1288V at 25Celsius when [Pb2+]=0.1403M and the pressure of H2=1atm, what is the pH Pb(s)+2H+(aq) Pb2+(aq) +H2(g) E0 = 0.1260V
asked by Jude 
chemistry
4. Vinegar is a dilute solution of acetic acid. What is the concentration of acetic acid in the vinegar if 26.5 mL of NaOH at 0.250 M are required to neutralize 10.0 mL of vinegar?
asked by cindy 
Physics
When certain a force is applied to a 2kg standard mass, its acceleration is 5m/s^2.When the same force is applied to another object its aceleration is 2m/s^2. The mas of the objects is:
asked by Britni 
science
What mass of water, in grams, would have to be decomposed to produce 26.3 L of molecular oxygen at STP?
asked by Erin 
Engish
Need to circle the correctword in parentheses and label adjective or adverb. 1. Cats can see (good,well) in the dark. ANSWER=well,adverb 2.After the storm the pier was damaged(bad,badly). ANSWER=bad,adjective 3. I was (real,really) pleased to get your
asked by Emily 
prealgebraa
1. Which of the following ordered pairs is a solution of 5x + 2y = 3? a. (2,4) b. (4,2) c. (1,4) d. (4,1) is the answer: C?
asked by Cheryl 
speech
Defend why you consider these to be modern styles.
asked by Anonymous 
For
What are the 3 base languages in Europe? I know there's Slavic, Romance which is Italian and French, but I can't remember the last one. Help!
asked by Jake 
statistics
Twenty (20) students randomly assigned to an experimental group are studying for a test while listening to classical music. Thirty (30) students randomly assigned to a Control group are studying for the same test in complete silence. Both groups take the
asked by Cyn 
social studies
i need an summary on The Home Front
asked by chris 
Brief Calculus
Evaluate the integral. HINT [See Example 2 and 4.] (Remember to use ln u where appropriate.) (1/v7 + 5/v) dv
asked by Rachel 
Chemestry
The covalent compounds ethyl alcohol and dimethyl ether have the formula C2H6O. However, the alcohol melts at 117.3 degrees C and boils at 78.5 degrees C the ether melts at 138.5 degrees C and boils at 23.7 degrees C. How could differences in forces
asked by Agustin 
MATH
peter bought a computer that cost 1,500. The computer is on sale for 15% off. Peter paid 7% sales tax on the sale price of the computer. How much did peter pay? My answer would be 1,604.25 can you explain how to do the problem if it is wrong
asked by chris 
math
Given the quadratic function f(x) = 16x^2 – 64x + 64, find a value of x such that f(x) = 16.
asked by kozy 
Econ/statistics
The monthly earnings of teachers is normally distributed with a mean of $3,000 and the standard deviation of $250. We select a sample of 87 teachers. The sampling distribution of the sample mean has an expected value and standard deviation of: a.) 3,000
asked by Sara 
Math 120
A recent study of 750 Internet userd in Europe found that 35% of Internet users were women. What is the 95% confidence interval of the true proportion of women in Europe who use the Internet? A)0.321
asked by will 
Geography
What is the time and day at a certain place X (Lat 25 deg N,Long 33 deg W) when at is 2.30 AM on Thurs Day at a place Y (Lat 25 deg S,Long 27 deg E) ?
asked by Sumit Guha 
Oncology Report
Ok, we're are supposed to do a one page annual report on oncology and I'm having trouble understanding exactly what I'm supposed to do. Our teacher gave us a sheet saying "You are asked by the CEO of a hospital to contribute to the annual report. She wants
asked by Valerie 
HBC
I worked so hard on the advertisement. Only asking for 3 more phrases, just little bit help please. Sorry if I've done bad job with it.
asked by Anonymous 
algbera
Multiply x – 2 by x2 + 4x – 2
asked by kozy 
Chemistry
A ship carrying ice over a lake breaks and spills its cargo.If 3650.0 g of ice at 0.00 celcius are released into the 15456200 g of water in the lake at 17.0 celcius, what will the final temperature be? (heat of fusion=79.0 cal) and i got the answer of
asked by Kat 
Money and Banking
Price of stock is 50.00 at the beginning of a year and 53.00 at the end of the year and it pays a dividend of 2.00 during the year calculate the stock's current yield,capitalgains yield,and the real return show work.
asked by Pam 
Computers
Why is the Web an important medium to publish information? Describe the ways the Web is different from other publishing media.
asked by Crissy XD!!! 
math
Amy places a set of number cards 1 through 30 in a bag. she draws out a card what is the probability that the number will have the digit 1 on it?
asked by heather 
math
A survey of Chaicago sports fans asked them 3 questions about which they prefer. Each fan must give exactly 1 answer to each question. Given a choice between the Cubs and White SOx, 40% chose cubs. Between the Bulls and Blackhawks, 57% chose bulls. between
asked by kavi 
Algebra Please Help/ Check
why does the equation x^2=9 has no real solution? This I can't figure out. why does the equation x^2 = 9 has two solutions? Is it because it satisfied by both 3 and 3 so it has two solutions.
asked by Wendy Q 
math
multiply (x2)by (x2 + 4x – 2)
asked by kozy 
IPC
i have no idea how to do this at all please explain... The specific heat capacity of copper is 0.09 cal/g°C. How much energy is needed to flow into a 10gram sample to change its temperature from 20°C to 21°C?
asked by Please help!! 
math
what does polygon mean
asked by hakim 
science
if a person weighs 120kg on earth, how much would they weigh in space
asked by JM 
English
1. I have to pay a library fine; I must have (forgot) to return a book on time. 2. Unfortunately, she had already (throw) the map away. 3. My uncle Jack has(drive) a taxicab for over thirty year. 4. Noah had already (write) a letter to his grandfather.
asked by Hayden 
geometry
What is the diameter of the following circle: (x + 4)2 + (y – 9)2 = 18
asked by Anonymous 
IPC
okayy sooo this matching thing is wierd.. i don't understand it.. Zeroth First Second Heat can change energy from one form to another, but the amount of energy in the universe is constant. Two objects in thermal equilibruim will have no net heat flow
asked by Please help!! 
math
Write a mixed numeral for the answer. 17 3/5  14 23/27
asked by Sadara 
Economics
Q = 39,000 – 500P AVC = 30 + 0.005Q Q is quantity demanded and produced, and P is price of the product. Total fixed cost is $50,000. Assume these functions are based on monthly demand and production. A. What are the inverse demand and the MR revenue
asked by Jim 
Chemistry  Help!!!
Which of the following criteria indicate that a reaction is SPONTANEOUS? Check all that apply. a) The change in free energy is positive. b) The entropy of the universe decreases. c) The change in free energy is negative. d) The entropy of the system
asked by Pam 
8th grade math
2x5y=14 3x+2y=40 what is the solve of xy ?
asked by Anonymous 
8th grade math
2x5y=14 3x+2y=40 what is the solve of xy ?
asked by Anonymous 
English
Can you briefly chech these few sentences, please? Thank you very much. They are urgent. 1) Dorian's wish for eternal beauty and youth could be connected to Goethe's Faust. 2) The portrait returns beautiful as original (or as it originally was?) 3) I
asked by Henry1 
Life orientation
How to address the problem of floods in our country?
asked by Princess nkosi 
Finance
subject is purchasing a home for $45,00.00 with $5,000.00 down payment @ 11% interest. Will this be covered in 10 years and how much payment per month?
asked by ingrid 
math
Combine like terms. 7 3/4x  5 1/20x
asked by Sadara 
american government
For the first eleven years of its existence, the United States was a _____.
asked by Anonymous 
chem
What is being oxidized in each of the following reactions? (a) Sr(s) + F2(g) SrF2(s) F2 SrF2 Sr .(b) H2(g) + I2(g) 2 HI(g) H2 HI I2 .(c) 2 Li(s) + Pb2+(aq) 2 Li+(aq) + Pb(s) Pb2+ Li+ Pb Li thanks:) can you give an explanation. I know a is Sr but I don't
asked by Lilly 
English
Hello. Will you please help me with the word order: 1)US forces have killed Osama bin Laden, who with his wives and sons has been living in a luxury compound in Pakistan for many years. (Is "who with" natural here; does "who together with" or "who along
asked by Ilma 
math
If a stone is tossed from the top of a 250 meter building, the height of the stone as a function of time is given by h(t) = 9.8t2 – 10t + 250, where t is in seconds, and height is in meters. After how many seconds will the stone hit the ground? Round to
asked by carol 
apple
Do you recognize the company or organization represented by the logo? If you do, where were you first introduced to this logo? Over time, has the graphic changed but still remained recognizable and associated in your mind with the company or organization?
asked by tiffany 
ECONOMICS
Q = 39,000 – 500P AVC = 30 + 0.005Q Q is quantity demanded and produced, and P is price of the product. Total fixed cost is $50,000. Assume these functions are based on monthly demand and production. A. What are the inverse demand and the MR revenue
asked by SAM 
ECONOMICS
Two price setting firms have the same price and marginal revenue functions but face different cost functions. These functions are provided below. P = 165  0.025Q MR = 165  0.05Q Firm 1: TC = 4,000 + 15Q Firm 2: TC = 3,000 + 22Q a. Assuming that both
asked by John 
Math
I really need a math dictionary... I need the following definitions Please: point line intersecting lines parallel lines vertical lines horizontal lines acute angle obtuse angle right angle square rectangle trapezoid rhombus pentagon hexagon octagon
asked by Erin 
Chemistry!!!
Calculate the density of a certain gas if its pressure is 0.725 atm, its molar mass is 48.22 g/mol, and the temperature of the has is 24.0 degrees Celsius
asked by Amanda 
Computer
Why do you think the information in the title bar of a document is important?
asked by JoshelaT 
Physics
What is the importance of the MichelsonMorley experiment?
asked by Jack 
geometry
If segment AB is a diameter, AB =10, and measure angle ABC =45, how far is segment BC from the center of circle O?
asked by Alexandria 
Pictures Of HBC
Since I am doing an Ad on the HBC. Could I get links to pictures. I don't know what to draw, anything easy please. Like a beaver, a boat, could you please give me links to items the HBC sold?
asked by Anonymous 
Math
x + 2/3x ______ = 30 2
asked by Anonymous 
math
how do i solve 4x divided by 3 +21 = 17
asked by jared 
Chemistry
I don't get this problem... 6.0 N H2SO4 = ________ M How can you solve for Molarity without mL? Thanks, much appreciated!
asked by Adry 
Social studies
Why did people long ago form communities
asked by Summer 
Biology
What ethical issues might arise when a drug company funds trials of a new drug it has developed to treat a genetic disorder?
asked by John 
Geometry
The equation of a circle is x^2 + 6x + y^2  2y = 15. What are the center and radius of the circle? Please show work.
asked by Anonymous 
science
Evolution is the theory and natural selection is the process. Explain what this might mean. How can environmental factors determine a feature in a species?
asked by jason 
Science (Asap)
What is the effect of a chemical change on the mass of matter?
asked by Frances 
math
Rewrite with positive exponents. Assume that even roots are of nonnegative quantities and that all denominators are nonzero.(6xy/y)^3
asked by kozy 
math
multiply x^2byx^2 + 4x – 2
asked by kozy 
math
Rewrite with positive exponents. Assume that even roots are of nonnegative quantities and that all denominators are nonzero.(6xy/y)^3
asked by kozy 
english
Because she practiced her presentation so diligently, Jamie was not the least bit nervous when she stepped onto the stage. (Points : 1) Because she had practiced her presentation so diligently, Jamie Because she had practiced her presentation, so diligent,
asked by yvonda 
Calc
How do you know what shape the graph in the xyplane represented by x=3sin(t) and y=2cos(t) is?
asked by Erica 
English
1.The brilliant blue waters (make, makes) the area popular. 2.Either Sydney, Australia, or Budapest, Hungary (were, was) settled by the British. 3.In Bahrain (is, are) located important oil reserves. 4.(More, Most) of the world's population (is, are) in
asked by Hayley 
Math
Find the product. (5a+2)³
asked by Mimi 
mathtranslate into words please
103n translate into words
asked by lawrence 
pre algebra
Method collected twice as much money as Lucy for a walkathon. Together they collected $120. Hoe much money did each person collect?
asked by Noah 
Science
The drawing bellow(click go to address img291.imageshack.us/i/sc017942e5.jpg/ to see picture of image) shows two students performing an experiment. Make a list of the things the students are doing incorrectly
asked by Jack 
geometry
find the area of an equilateral triangle with sides measuring 6 meters.
asked by nick 
algebra
5/x6x=4 find a quadratic equation and find the roots?
asked by sakina 
math
Write a mixed numeral for the answer. 1 7/8 divided by 1 5/9 =
asked by Sadara 
English
Hello. Please help me with a few lexical questions. 1)Is it possible to use "spot" in the following context: "the scandal spotted his political reputation"? 2) Is it possible to say "Hosni Mubarak was a)discharged b)dismissed c) dismissed from power"
asked by Ilma 
Math
A locker combination has three nonzero digits, and digits cannot be repeated. The first two digits are 1 and 2. What is the probability that the third digit is 3?
asked by Jess 
reimbursement methodologies
you're reviewing reimbursement for medicare surgical craniotomy case. The case falls into DRG 1, which has a relative weight of 3.0970 and a geometric mean length of stay of 6.3. The hospital's current standard reimbusement rate is $1500. calculate the DRG
asked by kim 
Science
What happens to the current in a closed circuit if the potential difference is increased and the resistance remains consistent?
asked by Niel 
math
At a local community college, it costs $ 650 to enroll in a morning section of an algebra course. Suppose that the variable n stands for the number of students who enroll. Then 650n stands for this course. How much is collected if 45 students enroll? 61
asked by Robert Wayne 
algebra 2
Given an angle pheta in standard position, if P(ã3/2, 1/2) lies on the terminal side and on the unit circle, find sin pheta and cos pheta.
asked by lindsey 
math
A=29 degrees, a= 5, b=13, How many solutions are there for triangle ABC and whats the solution(s)
asked by lindsey 
statistics
The sample mean is 12 for a sample of 26. The sample deviation is 3. Use the .02 level of significance The following information is available. H0: ≤ 10 H1: > 10
asked by Anonymous 
math
write as mixed numbers 3.2= 5.4=
asked by kyle 
algebra
I need help understanding how to do these problems. Thanks! 1) Find the value(s) that would be left out of the range of f. If there is more than one value separate them by commas. Leave fractional answers in fraction form. If there are no values left out
asked by alyssa 
chemistry
write out the reactions that convert the chromate ion into chromium peroxide.
asked by jen 
conseptual physics
if you hold one end of a metal nail against a piece of ice, the end in your hand soon becomes cold. does cold flow from the ice to your and? why?
asked by jessica 
math
what is the product of the expression below? (2x5)(2x3)
asked by natalie 
English
I need to check these sentences, especially the use of sentence connectors. Can you also suggest a site to me where I can get extra exercises on how to use them in a paragraph? Thank you 1)The soldiers are presented as old and tired. The poet wonders if
asked by Henry1 
history...sort of
i am doing a research project on media scares or media rumors that have frigntened people throughout history and how society has reacted to them. I already have the y2k scare and the war of the worlds brodcast scare. I would like a couple other scares to
asked by penny lane 
PreAlgebraa
1. Find an equation in slopeintercept form for the line passing through each pair of points: (4,4), (5,3) a. y = 7x  32 b. y = 7x + 32 c. y = 7x + 32 d. x = 7y + 32 is the answer a?
asked by Cheryl 
physics
A 3kg book is lifted to a height of 50cm above the ground (a)by how much has the book's gravitational potential energy increased?
asked by Mudau daisy 
hialeah miami lakes
given triangle PQR with vertices P(0,8), Q(4,9) and R(2,3), find the length of the midsegment connecting the midpoint of PQ to the midpoint of PR.
asked by ivette hanon 
trig
solve for exact value for x between 0 and 2 pie 3sin2(x)cos2=2?
asked by shery 
math
Subtract. (4a3 – 7a2) – (8a3 + 1a2)
asked by carol 
Integrated Physics and Chemistry
Energy that is dissipated during heat flow cannot usually be used to produce work. True False
asked by jessica 
AdvertisingHBC Company
Okay. I had a sub today, and she said that I have to make an advertisement on the HBC to attract individuals. Some examples she gave to me: Marvellous goods! We Want you! Jobs available for men! Some things I came up: All types of fur like beaver and
asked by Anonymous 
life orietation
5 ways in which the human or enviromental problem impacts on the community
asked by lesego 
Math
I invested $45,6000 at 18% to be compounded semiannually. What will be the value of my investment in four years?
asked by Galaxy 
Chemistry
HCl (g) Hbr(g) HF(g) Which of these gases has the fastest average speed? The highest average kinetic energy? How do I determine this?
asked by Ashlee 
algebra 1
find the excluded value x+5 over 3x2
asked by kiesean 
algebra
an advertising company made 15 million in 2002 and 22 million in 2003. in a bar graph of this data, the bar for 2002 is 3 inches high. How high should the bar for 2003 be to represent the data proportionally?
asked by veronica 
math
given a length of wire to construct a geometric figure with it, what fugure encloses the greatest area
asked by mary 
Calc
To what limit does the sequence Sn = (3+n) /3^n converge as n approaches infinity?
asked by Erica 
Grammar
I need the present tense form of the verb choose in this sentence. Fred chooses a piece of wood. Is it chooses or chose? Also in this sentence, Jim lies his jacket on the bench. Is lies or lays correct?
asked by Kam 
math
find the axis of symmetry f(x)=2x212x+8find the axis of symmetry f(x)=2x212x+8
asked by jacob 
Statstics
Cities A, B, C and D are equidistant. That is, B is d miles from A, C is d miles from B, and D is d miles from C. Suppose you travel 55 mph from A to B, 40 mph from B to C, and 50 Mph from C to D. What single, constant speed could you have traveled from A
asked by Robo 
Math
Find the equation of a hyperbola of the form x squared / M  y squared / N = 1 the transverse axis is 12 and the foci from the center is 16 is the answer x squared / 36  y squared / 220 = 1
asked by Anonymous 
Statistics
A certian company enjoyed 3.5% profits in year 1 over its revenue in Year 0. In Year 2, it enjoyed 5.75% profits over Year 1. In Year 3, it posted 1.25% profits over Year 2. What single, constant profit over this period of years would have produced the
asked by Ben 
english
Two many cooks spoil the broth. (Points : 1) Two many cook To many cooks Too many cooks Two many cooks
asked by yvonda 
FRENCH
Sra, thanks so much for the help yesterday with my French. Here is the work, and I got my teacher to check it over, and she corrected some areas, so I thought to let you know. 1. Nous sommes allés à Vancouver où nous avons rencontré nos cousins. 2. À
asked by Sydney 
MATH
karen earned 12% this year 78,500 investment earn about 1,00 this year i need an equation you have to estimate is this correct 80,00 x 0.12 = 9,600
asked by sergio 
compose
Who are some famous pianists of the 21st century?
asked by Jan 
managment
“Egalitarian companies are more innovative.What do you think?
asked by robin 
math
5/3x+2/3=11
asked by Sadara 
aglbera
Rewrite with positive exponents. Assume that even roots are of nonnegative quantities and that all denominators are nonzero.(6xy/y)^3
asked by kozy 
science (force and motion)
explain how accceleration can be slowing down. Calculate the impact force of a 50 kg object travelling at 100km/hr? > i was wondering if you can answer directly and not through hyperlinks... thank you
asked by sarah 
lomes
it is a 2 digit number. its digits add up to 13. it has more tens than ones
asked by keli 
Math
Hai take 12 minutes to walk to school. He wants to get there.15 mins early to meet with his lab partner. What time shod he leave his house is school starts at 8:10 am?
asked by Justin 
algebra please help!
I need help understanding how to do these problems. Thanks! 1) Find the value(s) that would be left out of the range of f. If there is more than one value separate them by commas. Leave fractional answers in fraction form. If there are no values left out
asked by randy 
science
How does your body keep from being crushed from air pressure?
asked by Alyssa 
Math
Multiply. (9t²t7)(4t²+9t1)
asked by Mimi 
Algebra
x_< 2 y_>2x+4
asked by SC 
Chemistry
Determine the number of moles in 56 g of N2
asked by Emily 
Science
Explain how gravitational force keeps planets revolving around the sun.
asked by Kai :) 
statistics
If input is 15, 24, 30 and output is 5, N, 10  what is "N"?
asked by Deb 
gr 10 french
How would you start off the answers for these questions in french? 1)Estce qu'il y de la competition entre cette compagnie et un autre?qui? 2)Estce qu'il y des porteparoles ou des temoinages pour ce produit?qui? 3)Quelle technique de persuasion estce
asked by Rebecca 
Geography
what is the leader of the canadian central government called?
asked by Alyonka 
science
how is it possible to extract tungsten from woframite?
asked by daisuke 
science (Genetics and Evolution)
What contains DNA? Where is DNA found? What is the difference between phenotype and genotype?
asked by jason 
business
What are some competitors of these companies? 1)Simple Green detergents 2)Motomaster 3)Nascar 4)Canadian Tire Jumpstart
asked by Rebecca 
math
log(x+8)log(2)=log(2x+2) solution set
asked by Anonymous 
math
round the following number to the nearest ten: 53
asked by sonia 
anthropology
What ethnicity are known for there spherical eye orbits?
asked by Traci 
algebra
What is the Pythagorean theorem? How is it used?
asked by chris 
spelling
how can you sort the words soup, double, cougars, and enough?
asked by nicole 
4th grade math
my question is in geometry what does 4/3 look like?
asked by mckenzie 
chemistry
why is the pH very acidic when adding water,naoh, and benzoic acid?
asked by Alicia Scottt 
math
two positive integers I larger value 32 j smaller 20 divide i by j which equal R if r not 0 then reset the value of j to the value of r when r equal 0 what the value of j?
asked by Anonymous 
chemistry
a)what is the name and molecular formula of the reagent responsible for the formation of the nickel complex ions? b)What is the color of this complexation?
asked by kat 
FRENCH
Sra here some of the other sentences: 1. Nous sommes allés à boum, et nous avons montré des bals. 2. Je suis allé à la maison de mon ami et j’ai eu Soirée pyjama. 3. Je suis rentré à la maison de mon cousin et j’ai joué des jeux. 4. Nous
asked by Sydney 
math
how would you write 2/3 as a decimal .66?
asked by heather 
accounting/help please
The two accounts used to adjust the uncollectible accounts are. A) Uncollectible Accounts Expense and Allowance for Uncollectible Accounts. B) Accounts Receivable and Uncollectible Accounts Expense. C)Accounts Receivable and Allowance for Uncollectible
asked by mike 
algebra
The area a of a triangle with base b and height h is given by A=1/2bh. Find the area when b=30m (meters) and h =30m What is the area?
asked by bee 
Physical Science
If an atom were to lose a neutron the atom's ________ would be affected.
asked by Dewight Johnson 
Chemistry II
For the cell Fe(s)©¦Fe2+(aq)¨UO2(g)©¦H+(aq), H2O(l)©¦Pt(s) Indicate a) standard cell potential; b) overall cell reaction c) number of electrons transferred
asked by Rebecca 
math
How do you convert feet to mph?
asked by bob 
Math And Physics HELP
A particle P of mass m=1 moves on the xaxis under the force field F=36/(x^3)  9/(x^2) (x>0). Show that there is a single equilibrium position for P and that it is stable. Find the period of small oscillations about this point.
asked by Dwayne 
Finance Real Estate....really need help!!!
A developer is interested in a parcel of land for a small mixed use development. Similar developments are worth $15 million and require the following sequential investments to complete: Phase Description 1 Purch. land, permitting, utilities 2 Build retail
asked by Courtney 
physics
how would you make a graph testing a ping pong ball and a tennis ball going down an incline and timing it
asked by Kelli Kenyon 
FINANCE
CORRECTION TO AMOUNT WITH PRIOR QUESTION:subject is purchasing a home for $45,000.00 with $5,000.00 down payment @ 11% interest. Will this be covered in 10 years and how much payment per month?
asked by ingrid 
physical science
list two safety procedures to create a supersaturated solution
asked by matthew 
Statistics
1. In thinking about doing statistical analysis, the sample mean should be interpreted as: A.)a constant value that is equal to the population mean. B.) a constant value that is approximately equal to the population mean. C.) a random variable that is
asked by Sara 
Economics 210
Information given is sample mean of 12 for a sample of 26. Sample deviation is 3. Using a .02 level of significance. H0 u< or equal to 10 and H1 u> 10 a. Is this a one or two tailed test? b. what is the decision rule? c. what is the value of the test
asked by Daniel 
Chemistry
A student places 5.77 grams of wex (a mythical substance often burned for light on other planets) in a test tube and then melts it. When the wex starts to freeze, the test tube (with the wex) is put into 237.6 g of water at 34.7oC. If the final temperature
asked by Kat 
math
Solve by factoring: 9t2 + 3t= 0 p2 + p + 4 = 0
asked by carol 
algebra
Graph inequality. y is < or equal to x+2
asked by Chardonnay 
chemistry
I need help with this problem: if you want to reduce the strength of 100 mL of 10 N NaOH to 3N, how much water would you need to add? Thanks in advance.
asked by John 
math
How do you write the least common multiple that clears an equation of fractions?
asked by Anonymous 
Chemistry
Entropy both increases and decreases when you build a jigsaw puzzle. How is this possible?
asked by Kat 
MATH AND PHYSICS HELP HELP HELP HELP HELP
A particle P of mass m=1 moves on the xaxis under the force field F=36/(x^3)  9/(x^2) (x>0). Show that there is a single equilibrium position for P and that it is stable. Find the period of small oscillations about this point.
asked by Dwayne 
Computers
What will happen if documents don't have a title bar?
asked by JoshelaT 
math
input/x,2,0,2 rule/x+3 output/y
asked by jessica 
technical math/precal
18/3square roots of 67square roots of 2
asked by Becky 
Economic
suppose now the inputs of mangoes are taxed. draw the graph to show the economic effects if demand is elastic
asked by lavinia 
Grammar
Present Tense Verb questions, Which is correct in this sentence? Joe chooses a piece of wood. Is it chooses or chose? Also, Joe lies his jacket on the bench. Is it lays or lies?
asked by Kam 
geometry
Indicate in standard form the equation of the line passing through the given points. A(4, 1), B(5, 2) please help me
asked by elena 
calculus
Please help. Applying the chain rule, how do I find the derivative of f(x)=In(e^xe^x) (x>0) and then using this answer use the quotient rule to find the second derivative. I cannot do this so any answer greatly appreciated.
asked by mary 
Calc
Find f(x) if f(1) = −1 and the tangent line at (x, f(x)) has slope7ex + 6. F(x)=
asked by Rachel 
life orientation
in 15 lines critically discuss 5 ways in which the substance abuse impacts on the community. Provide relevant sources to support your claims.
asked by raymond 
CHEMISTRY
complete and balance the reaction. HCl + Ba(HO)2  the 2 is suppose to be a sub 2 but can get it to do so on this computer and the  is an arrow. I believe it is BaClO + H2O is this correct?
asked by Carla 
Grammar Verbs
Is this the correct present tense verb in this sentence? Then Joe starts the power saw. I think it is starts not started.
asked by Kam 
science (force and motion)
explain how accceleration can be slowing down. Calculate the impact force of a 50 kg object travelling at 100km/hr? > i was wondering if you can answer directly and not through hyperlinks... thank you
asked by sarah 
MATH
BOB BOUGHT 12 GALLONS OF GAS FOR $33.48. WHAT IS THE UNITED PRICE PER GALLON.
asked by crystal 
Math 120
Which of the followinf could not be the value of a correlation coefficient? A) 0.683 B) 0.197 C) 1.000 D) 1.369
asked by will 
Physics
At what speed must one frame of reference be moving relative to another for the two frames to disagree about lengths by 1%? Express your result as a fraction of the speed of light. At what speed must one frame of reference be moving relative to another for
asked by Darren 
History
What was the time period for the columbian exchange>
asked by Annaa 
math
Multiply x – 2 byx^2 + 4x – 2
asked by kozy 
grammar
why shouldnt you use two negative adverbs in a sentence.
asked by money