Questions Asked on
October 23, 2014

Trig/PreCalc...
Please help me with this. The finishing time for a runner completing the 200meter dash is affected by the tailwind speed, s. The change, t, in a runner's performance is modeled by the function shown below: t= 0.0119s^2  0.308s  0.0003 Predict the
asked by AbelovedAngel 
CHEM
How many moles of magnesium are needed to react with 16 g of O2? 2 MgO (s) + O2 (g) → 2 MgO (s)
asked by HAY 
Physics
Two massless springs (S1 and S2) are arranged such that one hangs vertically downward and the other is vertically upward, as shown in figure (a). When a 0.275kg mass is suspended from S1, it stretches by an amount Δx1 = 0.062 m, as shown in figure (b).
asked by Anonymous 
Statics
A cantilever beam, made of a material with a Young's modulus, E with a rectangular cross section with a moment of inertia I, is under a uniformly distributed load, q, across the length L of the cantilever at a point load P at the free end of the
asked by qwerty 
Statics
A rectangular beam, with crosssectional width b, height h, Young's modulus Erect, has the same flexural rigidity as a circular beam with the same crosssectional area. What is the Young's modulus, Ecirc, of the circular beam in terms of Erect,b, and h?
asked by qwerty 
Statics
Four identical pinpin ended solid concrete cylindrical columns that are L=10m tall need to be able to withstand 6.8×108N of force before Euler buckling. What should be the diameter, d, in meters, of each column if the force is uniformly distributed? The
asked by qwerty 
Statics
Calculate the elastic buckling collapse stress (the compressive strength), σ∗el, for an opencell polystyrene foam with a relative density of 0.1. (Es for polystyrene = 3.5GPa). Recall that C2=0.05. Give the results in MPa. σ∗el (in MPa): The energy
asked by qwerty 
Statics
You have 1kg of aluminum (E=69GPa) to make a cylindrical tube with a high Euler buckling load. The tube must have a length L of 0.5m. You can either make a solid tube, or a thin walled tube with a wall thickness, t=0.5cm. The density of aluminum is
asked by qwerty 
Statics
You have a stainless steel hollow rod (E=193GPa,ν=0.29) that has an inner radius r of 1.2cm, a wall thickness t of 0.7mm, and a length L of 5cm. Calculate the critical loads, in kN, for local buckling and Euler bucking (Pcr,local and Pcr,Euler,
asked by qwerty 
Physics
A coil is wrapped with 200 turns of wire on the perimeter of a square frame of sides 20.5 cm. Each turn has the same area, equal to that of the frame, and the total resistance of the coil is 2.01 Ω. A uniform magnetic field is turned on perpendicular to
asked by Alisha 
Language arts
How should the United States government have behaved in dealing with the disputes between the Cherokees and the white settlers?
asked by Nancy 
Trig / Calc
What angle (in degrees) corresponds to 18.96 rotations around the unit circle? Enter the exact decimal answer.
asked by Randy 
Chemistry
Please help Suppose that 0.250mol of methane, CH4(g), is reacted with 0.400mol of fluorine, F2(g), forming CF4(g) and HF(g) as sole products. Assuming that the reaction occurs at constant pressure, how much heat is released? Substance ΔH∘f (kJ/mol) C(g)
asked by Help 
math
A television set is 36 inches wide and has a diagonal length of 42 inches. To the nearest inch, how tall is the set? A.9 B.13 C.22 D.55 Is the answer D?
asked by help!! me 
Chemistry
Suppose that 0.250mol of methane, CH4(g), is reacted with 0.400mol of fluorine, F2(g), forming CF4(g) and HF(g) as sole products. Assuming that the reaction occurs at constant pressure, how much heat is released? Substance ΔH∘f (kJ/mol) C(g) 718.4
asked by Help 
Statistics
Assume that X, the starting salary offer to psychology majors is normally distributed with a mean of $47,507 and a SD of $5000. 1. The probability that a randomly selected psychology major received a starting salary offer greater than $52,000 is______. 2.
asked by Jolie 
English
@ words : 1 curtail 2 devastate 3 digress 4 incentive 5 incorporate 6 indispensable 7 intermittent 8 rigor 9 squander 10succumb Linda never had to work hard to make good grades in high school. But in college, where the ___(8)___ of course work
asked by William 
Statics
Compare the Young's modulus E∗ of two opencell foams. Which Young's modulus is higher? Recall that C1=1. 1. polystyrene: (Es∼3.5GPa), ρ∗/ρs=0.3 2. Al 7075T651: (Es∼72GPa), ρ∗/ρs=0.1 E∗PS (in GPa): E∗Al (in GPa): Select the correct
asked by qwerty 
Latin I
6. Select the best translation for "nuntiabant". (5 points) a. They do report b. They are reporting. c. They report. d. They kept reporting. I think it's D.
asked by Layna 
Algebra
Write an equation that expresses the relationship. Then solve the equation for c. q varies jointly as c and the square of h.
asked by Jacqueline 
Spanish
Sra. are these three correct? I have a short assignment this week. Thank you! Conteste las preguntas utilizando el pluscuamperfecto de indicativo según el modelo. Use el mismo verbo que se usa en la pregunta. Modelo: ¿Por qué no nos ha dicho la verdad
asked by Anna 
physics
A 1.0kg cart and a 0.50kg cart sit at different positions on a lowfriction track. You push on the 1.0kg cart with a constant 2.5N force for 0.15m . You then remove your hand, and the cart slides 0.35 m and strikes the 0.50kg cart. By what amount does
asked by Sean 
Chemistry
The Ksp for BaCrO4 is 1.2X1010. Will BaCrO4 precipitate when 10 mL of 1 X105M Ba(NO3)2 is mixed with 10 mL of 1X103M K2CrO4? I am not sure where to start
asked by suzanne 
math asap
if a 40 m rope is cut into two pieces in the ratio 3 : 5, how long is each piece? i tried: x=one piece 3/5 = x/40 x= 3*40/5 x=120/5 x=24 is that right?
asked by Andrew 
French
How do you respond to "Comment diton X en francais?"
asked by Anonymous 
Algebra
Find all complex numbers z such that z^2=2i. Write your solutions in form, separated by commas. So, "1+2i, 3i" is an acceptable answer format, but "2i+1; i+3" is not. Thank you!
asked by Trish Goal 
Int.science
The rate at which a candle burns in millimeters per minute is: qualitative theoretical quantitative hypothetical
asked by john handcock 
Int.science
The size of the chosen symbols on a graph may be used to indicate the: location of the data coordinates of the data uncertainty of the data relationship of the variables
asked by Hank Hill 
Chemistry
A volume of 100.mL of H2O is initially at room temperature (22.00 ∘C). A chilled steel rod at 2.00 ∘C is placed in the water. If the final temperature of the system is 21.50 ∘C , what is the mass of the steel bar? Use the following values: specific
asked by Help 
math
You are the financial planner for Johnson Controls. Assume last year’s profits were $760,000. The board of directors decided to forgo dividends to stockholders and retire highinterest outstanding bonds that were issued 5 years ago at a face value of
asked by sara 
Math
Given the following information: current assets = $400; fixed assets = $500; accounts payable = $100; notes payable = $45; longterm debt = $455; equity = $300; sales = $450; costs = $400; tax rate = 34%. Suppose that current assets, costs, and accounts
asked by Nancy 
statistics
An instructor in a large lecture class found at the end of the semester that total points scored by students in his class was approximately Normal with mean 530 and standard deviation 80. If 10% of the class are to receive A's (he grades on a curve), what
asked by Tara 
Logic
Use Propositional Resolution to show that the clauses {p, q}, {¬p, r}, {¬p, ¬r}, {p, ¬q} are not simultaneously satisfiable. Proof takes 8 steps including the premises and the goal.
asked by qwerty 
math
Suppose you take out a loan for 180 days in the amount of $13,500 at 11% ordinary interest. After 50 days, you make a partial payment of $1,000. What is the final amount due on the loan?
asked by Karla 
Physics
A ball player hits a home run, and the baseball just clears a wall 20.3 m high located 119.0 m from home plate. The ball is hit an an angle of 35° to the horizontal, and air resistance is negligible. Assume the ball is hit at a height of 1.0 m above the
asked by sam 
algebra
There are three real numbers x that are not in the domain of f(x)=1/ 1+ (1+1/x). What is the sum of those three numbers. I think one number is 0. Thank you!
asked by Trish Goal 
statisitcs
The combined math and verbal scores for students taking a national standardized examination for college admission is normally distributed with a mean of 560 and a standard deviation of 180. If a college requires a student to be in the top 40 % of students
asked by veronica 
calc
A water trough is 7 m long and has a crosssection in the shape of an isosceles trapezoid that is 40 cm wide at the bottom, 100 cm wide at the top, and has height 60 cm. If the trough is being filled with water at the rate of 0.3 m3/min how fast is the
asked by bob 
physic
An object of mass m is at rest at the top of a smooth slope of height h and length L. The coefficient of kinetic friction between the object and the surface, μk, is small enough that the object will slide down the slope if given a very small push to get
asked by physic please help 
math
write a multiplication equation and a division equation that represent the model shown below.176 *16=d this is correct.how to write a division equation.
asked by Lakshmi 
statistics
The physical plant at the main campus of a large state university receives daily requests to replace florecent lightbulbs. The distribution of the number of daily requests is bellshaped and has a mean of 46 and a standard deviation of 9. Using the
asked by Anonymous 
Logic
Given the premises (p ⇒ q) and (r ⇒ s), use Propositional Resolution to prove the conclusion (p ∨ r ⇒ q ∨ s). Proof takes 8 steps including the premises and the goal.
asked by qwerty 
algebra
Find the smallest integer x where the expression srt(x2)/x^2+x6 is defined. I factored the denominator (x+3)(x2) and the smallest value is 2 so the whole expression would have a value of 0. But, that is not the right answer. Thank you!
asked by Trish Goal 
engligh
Which choice best describes the underlined words in the sentence? Look at the stars and planets on a clear night. (Points : 3) simple predicate complete predicate compound predicate none of the above
asked by jay 
Chem
Solid urea, (NH2)2CO, burns to give CO2,N2, and liquid H2O. Its heat of combustion is 632.2 kJ/mol. Balance the equation for combustion of urea, and calculate the heat generated per mole of H2O formed. (Enter in kJ.)
asked by Martin 
Physics
A baseball (m = 149 g) approaches a bat horizontally at a speed of 42.2 m/s (94 mi/h) and is hit straight back at a speed of 48.1 m/s (108 mi/h). If the ball is in contact with the bat for a time of 1.10 ms, what is the average force exerted on the ball by
asked by Cammy 
help
What government dose One Person Or Small Group Holds All The Power?
asked by Anonymous 
Statistics
The marks of 100 students in an examination are normally distributed with mean of 25 marks and a standard deviation of 10 marks. (a) Given that the pass mark is 20, estimate the number of students who passed the examination. (b) If 5.59% of the students
asked by Anne 
physics
A long jumper leaves the ground at an angle of 24.4◦to the horizontal an data speed of 9.52m/s.How far does he jump?The acceleration due to gravity is 9.8m. What maximum height does he reach?
asked by sandy 
Chemistry
Constantvolume calorimeters are sometimes calibrated by running a combustion reaction of known ΔE and measuring the change in temperature. For example, the combustion energy of glucose is 15.57 kJ/g. When a 2.500 g sample of glucose burns in a constant
asked by Kales 
Language Arts HEL;P!
Which of the following best describes the effect of beginning "Always to Remember" with a description of the memorial competition? A. This technique keeps the essay from being autobiography or fiction. B. This tatic gives background for the importance of
asked by Anonymous 
math
write a multiplication equation and a division equation that represent the model shown below.176 16=d
asked by Lakshmi 
Math
123 Inc has a profit margin of 15%. Its total asset turnover ratio is 2 and its dividend payout ratio is 60%. What is the company's internal growth rate? Please show steps
asked by Nancy 
Math
What is the slope of the line passing through (3,4) and (2, 1)? 3/5 1 1 ** 3/5
asked by Tii 
Math
You have the following data for the Fosberg Winery. What is Fosberg's return on assets (ROA)? Return on equity = 15%; Earnings before taxes = $30,000; Total asset turnover = 0.80; Profit margin = 4.5%; Tax rate = 35%.
asked by Nancy 
Chemistry
26.5 kJ of heat is added to 5.44 g of ice at 0 C. What phase(s) are present and what is the temperature of the system after all the heat is absorbed?
asked by Polina 
Algebra
How do I simplify (2a  b)(4a^2  2ab + b^2)? I keep getting 8a^3  8a^2b + 4ab^2  b^3, but it shows wrong.
asked by Anonymous 
Math
You plan to make 24 equal quarterly payments (payments are at the end of each period) into an account to pays 8% (per year compounded quarterly). If you need $5,000 at the end of 10 years (i.e. 4 years after the last payment is made into the account), how
asked by Nancy 
math
A bottle of juice states that a serving is 1/2 cup. How many servings are in 2pint container? ( Hint: One pint equals 2 cups?
asked by Anonymous 
Math help
You plan to make 24 equal quarterly payments (payments are at the end of each period) into an account to pays 8% (per year compounded quarterly). If you need $5,000 at the end of 10 years (i.e. 4 years after the last payment is made into the account), how
asked by Nancy 
physics
a spring lies on a horizontal table, and the left end of the spring is attached to the wall. the other is connected to a box. the box is pulled to the right, stretching the spring static friction exists between the table and the box
asked by Anonymous 
Math
Pey Soon has taken out a 20year, $150,000 mortgage with monthly payments (made at the end of each month) at a stated mortgage rate of 6.8% per year compounded semiannually. If she makes each payment on time, what will be the mortgage principal remaining
asked by Nancy 
chemsitry
How many grams of propane (C3 H8 ) will react with 3.29 L of O at 1.05 atm and 34°C? i know the balanced eqn is 1C3H8 + 5 O2 > 3CO2 + 4H20 and that PV=nrt , with T= 34 + 273.15 = 239.15K. n=(PV)/(RT) (F=for O2). = 0.176 mol O2 0.176 mol O2 * (1mol
asked by leila 
math Help!!!!!!
Which number completes the Pythagorean triple: 12,16, ? A.18 B.20 C.22 D.24 Is the answer D?
asked by blue 
Algebra
Sound travels at 343 meters per second. How far does it travel in 8 seconds? My answer is 2,744 meters.
asked by Steve 
algebra
The rate at which water evaporates from a certain reservoir depends on the air temperature. The table below shows the number of acrefeet (af) of water per day that evaporate from the reservoir for various temperatures in degrees Fahrenheit. Temperature,
asked by nate 
algebra
A piece of pottery is removed from a kiln and allowed to cool in a controlled environment. The temperature (in degrees Fahrenheit) of the pottery after it is removed from the kiln is shown for various times (in minutes) in the following table. Time(min)
asked by nate 
Algebra
What is the 9th term of the arithmetic sequence defined by the rule below? A(n)=14+(n1) (2)
asked by Steve 
Business
What body part would represent someone who is stubborn with their ideal but is flexible with small details? (Not the brain or heart)
asked by Liza 
Algebra
There are three real numbers x that are not in the domain of f(x)=1/ 1+ (1+1/x). What is the sum of those three numbers. 0 is one of them,I don't know the other ones.Thank you!
asked by Trish Goal 
physics
A baseball is thrown at an angle of 20◦ relative to the ground at a speed of 25.6 m/s. The ball is caught 42.9416 m from the thrower. The acceleration due to gravity is 9.81 m/s2 . How long is it in the air?
asked by John 
physics
Consider a railroad carmoving and striking another car at rest. The two cars then become attached by a special hitch. Does the first car have momentum? and why?
asked by sarah 
Algebra
(7x^3 + 2x  1) + (8x^2  6 + 2x  x^3) = 6x^3 + 8x^2 + 4x  7 (3x^4 + x^6  9x^5 + 2x^2  7)  (2x^5 + x  4x^2  x^4 + 12) = x^6  7x^5  2x^4 + 6x^2  x  19
asked by Anonymous 
Health/business
What body part would represent someone who is stubborn with their ideal but is flexible with small details? (Not brain or heart)
asked by Liza 
Micro economics
What is the optimizing behaviour of the firm?
asked by Emeka 
Math step by step?
Solve for t. Show all steps. t over 5= 8 T= 40? I think.
asked by Anonymous 
physics
A person is standing on a spring bathroom scale on the floor of an elevator which is moving up and slowing down at the rate of 1.53 m/s 2 . The acceleration of gravity is 9.8 m/s 2 . If the person’s mass is 83.4 kg, what does the scale read?
asked by Anonymous 
biology
why meiosis is named as meiosis 1and2?
asked by abdul 
Physics.
A toy car runs off the edge of a horizontal table that is 1.21 m high. The car lands 1.39 m away from the edge of the table How fast was the car moving across the table just before it fell? ____m/s MY WORK: h=1/2gt^2 1.21=1/2(9.8)t^2 1.21=4.9t^2 scuare
asked by Rose Nicol 
World History (Ms. Sue)
when did camo start being used?
asked by Casey 
Chemistry
A 0.84 g sample of caffeine, C8H10N4O2, burns in a constantvolume calorimeter that has a heat capacity of 7.85 kJ/K. The temperature increases from 298.30 K to 303.35 K. What is the molar heat of combustion of caffeine (in kJ).
asked by Kales 
celebrating Diversity
To say that all African Americans are fast runners is an example of A. sexism. B. ableism. C. ageism. D. stereotyping. D is my Answer.
asked by Amanda 
Physics.
A player kicks a football from ground level with an initial velocity of 28.8 m/s and 26 degrees above the horizontal. What is the ball's hang time? ______s What is the ball's maximum hight? ____ i am so confused on what type of equation i use! please help.
asked by Rose Nicol 
celebrating Diversity
One of the children in your care asks, "Why can't Sonya walk?" in reference to a fouryearold child with cerebral palsy. The best response is A."It doesn't matter, she's still our friend, right?" B."She can't walk, but she can talk and laugh like you."
asked by Amanda 
Physics.
Bob hits a hockey puck with his stick. What forces are acting on the puck DURING THE ACTUAL HIT? a = weight b = friction c = tension d = forward force e = normal force Write down every letter that applies (in order) and without using any commas. my work:
asked by Rose Nicol 
Math
5 + y/6=8
asked by Andy 
algebra
Maria’s garden has 24 meters of fence and she wants to fence the rectangular garden with wall on one side of the garden. She needs no fence along the wall side. Find the largest area of the Maria’s farm that can be fenced.
asked by delisia 
Chemistry (urgent)
Hydrolysis of a compound A, C7H6cl2 was carried out by refluxing with excess potassium hydroxide solution. the resulting solution was acidified with dilute HNO3 acid and excess silver nitrate was added to precipitate the chloride ions as silver chloride.
asked by Kris 
math
18 sections of fence each 1 meter long. What are the various sizes of rectangular pens using all 18 units of fence?
asked by Joanne 
celebrating Diversity
Which one of the following qualities do interactions with others? A. Strong self esteem B. Respect for the view point of others C. Closedmindedness D. Flexibility A is the answer
asked by Amanda 
math
If a 40 m rope is cut into two pieces in the ratio 3:5, how long is each piece? I tried it but I checked it and it was wrong, please help.
asked by Andrew 
Health
Which body part would you give to someone who is perceptive. Like, sees what's wrong with the business and changes it for the better. And why?
asked by Liza 
algebra
y^1/3(y^4/93y^2/9)
asked by cindy 
MATH ASAP~
Write an inequality for this sentence: The height h is greater than 15 feet.
asked by Anonymous 
algebra
X= log 3 5 * log 4 27 * log 3 sqrt 2 25
asked by Antony 
Math 222
Posted by Monica on Thursday, October 23, 2014 at 6:36pm. Please help me solve these two Rational Expressions? Sorry my addition sign does not work on my keyboard, so that is why I am using the word "plus". 1). g^26g55 __________ g 2). k^3 plus k
asked by Monica 
Math
Joe is making a rectangular mosaic with colored tiles. He will use 20 tiles to make his design. What are all the different arrangements of tiles that Joe could use to design his mosaic?
asked by Laura 
phyics
_________ was the first to show that all objects fall toward Earth with constant ____________.
asked by Ashley 
English
1. Twenty years is a long time. 2. twenty years is a long period. 3. 100 kg is very heavy. 4. 100 kg is a heavy weight. 5. Two hundred dollars is a lot of money for me. 6. Two hundred dollars is a great/good sum of money. 7. Twenty miles is a long
asked by rfvv 
accounting
Blanche invested $9800 in a savings account with a yearly interest rate of 2% for 15 years. How much simple interest did she earn?
asked by Anonymous 
Language Arts
Why does the author of "Always to Remember" discuss Maya Ying Lin's background? A. To show that she experienced hardships B. To appeal to ChineseAmerican readers C. To show its influence on her design D. To show her disintrest in architecture Is the
asked by Anonymous 
physics please help
A marathon is and long. Estimate how many strides would be required to run a marathon. Assume a reasonable value for the average number of 3.1 ft/stride.
asked by anthony 
asap math
Solve for y. Show all steps. y over 4≤ –16
asked by Anonymous 
Int.science
The size of the chosen symbols on a graph may be used to indicate the: location of the data coordinates of the data uncertainty of the data relationship of the variables
asked by Casey 
Psychics
If a railroad car was moving and stroke another car at rest and the two cars then become attached by a special hitch. Does the first car have momentum? Why?
asked by sarah 
Biology
1. Mitochondria and chloroplasts reproduce the same way freeliving bacteria do—by _____________. My answer: Binary fission. 2. The tropism that allows seedlings to find their way out of the soil and into the sunlight is _________________. My answer:
asked by ciara 
geography
what is the term for "products of the human imagination that please and entertain us and teach a cultures values"
asked by Nicholas 
biology
Which characteristic of life is maintaining a stable internal environment. A)Reproducing B)Homeostasis C)Growing and developing D)Responding to stimuli
asked by BBG.D2K need help plzz 
English...
why are people talking about ebola when it started a long time ago? It's a serious question I'm asking and I know it doesn't relate to homework but when i tried searching it up it wont give me the right answer im looking for
asked by Sarah 
math
y – 5 = –8
asked by Anonymous 
celebrating Diversity
To learn to respect others and develop healthy relationships, children need to A. be told what to think. B. develop strong selfesteem. C. learn to gain control over other children. D. confront people with different ideas. The answer is B.
asked by Amanda 
englishstories
what are some interesting and detailed short story ideas ?
asked by ina 
Chemistry
A piece of aluminum with mass of 5.0 g is immersed in 30.0 g of water. This system is heated electrically from 20.8 to 42.6°C. How many joules of energy are absorbed by the aluminum? (Cpaluminum = 24.4 J/molK; 1 mole of aluminum has a mass of 27.0 g)
asked by Kales 
Physics
A sign hangs supported by a rod and cable. The cable is at a 30 degree angle to the sign and the force on the rod is totally horizontal. If the sign weighs 200N what is the tension on the cable
asked by Desiree 
Math
Can't get it in my head the following problem. Carol needs 10 panels each being 11feet tall. At $13.75 a yard. How much will it cost to purchase supplies?
asked by Anonymous 
Math
a skateboard with a mass of 1.5 kg moves up a quarter pipe to a height of 5.0 meters. How fast was it moving at ground level?
asked by Bart 
Math problem?
Lauren needs at most $80.00 for gas. How many twenty dollar bills does she need?
asked by Anonymous 
Simple Physics
Which of the following is most appropriate to follow motion in one dimension? linear scale solid coordinates xyz coordinates graph with x and yaxes
asked by Anonymous 
Int.science
The rate at which a candle burns in millimeters per minute is: qualitative theoretical quantitative hypothetical
asked by Casey 
Chemistry
A home swimming pool contains 145 m3 of water. At the beginning of the swimming season, the water must be heated from 20 to 32°C. How many joules of heat energy must be supplied?
asked by Kales 
Math
Faucet A fills a sink in 2 hrs. Faucet A and B fill the same sink (together) in 1 hr 15 mins. Faucet B would take how long to fill the sink by itself?" (Faucet B is slower)
asked by Isiah 
Chemistry
It requires 120 J of heat to raise the temperature of 70.0 g of rhodium from 280.0 K to 287.8 K. What is the molar heat capacity of rhodium?
asked by Kales 
Science
A straight line with a positive slope on a velocitytime graph indicates which of the following? no movement constant acceleration toward the reference constant velocity away from the reference constant acceleration away from the reference
asked by Anonymous 
Algebra
There are three real numbers x that are not in the domain of f(x)=1/ 1+ (1+1/x). What is the sum of those three numbers. Thank you!?
asked by Trish Goal 
Grammar
I beg you for forgiveness, if there is any incorrect evaluation. He is very young not advisable to assign to bigger tasks in the filed. Pls correct the mistakes.
asked by Riya 
chemistry
Calculate the word done in joules when 1.0 mile of water vaporizes at 1.0 atm and 100 degrees Celsius. Assume that the volume of liquid water is negligible compared with that of steam at 100 degrees celcius, and ideal gas behavior.
asked by Anonymous 
Math
Solve 2x^3y^3*2x^1y^3
asked by Steph 
Math
6 rectangular sheets of paper with the demensions of o.5m and 0.8m, if they do not overlap what is the total area covered
asked by Sandy 
physics
A line directed to the west. A plane flies 20 degrees north of that direction ( 90 degrees north of that direction would be north..) if the plane flies for 340 km, determine its displacement toward the west and its displacement toward the north during its
asked by katie 
Math Math!
Marcus buys groceries for no more than $250.00 each week. He shops 4 times each month. How much should he budget for groceries for the month?
asked by Anonymous 
kindgardn
24 mius 13
asked by bamkolqmw 
Calculus
I need help determining the intervals of increase, decrease and the intervals of upward and downward concavity given f prime. f'(x)=(64x^4  125x) ^(2/3). Im not sure how to solve this. I know that the function has no intervals of decrease, its the rest
asked by Sam 
Physics
Two masses, mA = 40.0 kg and mB = 55.0 kg, are connected by a massless cord that passes over a pulley that is free to rotate about a fixed axis. This device is known as an Atwood’s Machine. The pulley is a solid cylinder of radius R = 0.360 m and mass of
asked by Cheese 
Math.
Is equation is true, false? I'm not sure. 3(4 + –5) = 3(–6 – 2)
asked by Anonymous 
Chemistry
Suppose 300.0 mL of 0.50 M HCl and 300.0 mL of 0.50 M NaOH, both initially at 22.0°C, are mixed in a thermos flask. When the reaction is complete, the temperature is 25.4°C. Assuming that the solutions have the same heat capacity as pure water, compute
asked by Amerie 
ap calc
two particles are moving along a linear track according to the functions x1=t^2+2t and x2=t^2+8t+80 for t is greater than or equal to zero. a)at what value of t will the two particles be in the same place b)will they be going in the same or opposite
asked by Anonymous 
physics
A ball is projected upward at time t = 0.0 s, from a point on a roof 10 m above the ground. The ball rises, then falls and strikes the ground. The initial velocity of the ball is Consider all quantities as positive in the upward direction. At time the
asked by anthony 
science
Which component of the technological system is achieved when an automobile airbag inflates?
asked by yaya 
physics
A brick is thrown upward from the top of a building at an angle of 33.5◦ above the hori zontal and with an initial speed of 12.8 m/s. The acceleration of gravity is 9.8 m/s2 . If the brick is in ﬂight for 3.4 s, how tall is the building?
asked by Anonymous 
Chemistry
A volume of 100mL of a 0.330M HNO3 solution is titrated with 0.370M KOH. Calculate the volume of KOH required to reach the equivalence point.
asked by Ines 
science
Ralph is also swinging at the park. He has a mass of 72.6 kg, and his maximum velocity at the lowest point in his swing is 7.3 m/s. What is Ralph’s maximum kinetic energy?
asked by baby boo 
science
Ralph is also swinging at the park. He has a mass of 72.6 kg, and his maximum velocity at the lowest point in his swing is 7.3 m/s. What is Ralph’s maximum kinetic energy?
asked by Anonymous 
Reading/English
Need help on identifying root word,suffix and prefix for control.
asked by Angel 
science
Ralph has the same mass of 72.6 kg, and his maximum velocity is still 7.3 m/s on the swing. What is the maximum height that Ralph reaches on his swing?
asked by Anonymous 
Statics
Calculate the deflection v at the free end, B, for the beams shown below. Both beams have the same rectangular cross section. Give your solution in terms of P,L,E and I.
asked by qwerty 
Help?
Explain how to use mental math to simplify the expression. 6 • 3 • 5
asked by Anonymous 
Accounting
I need to know how to journalize this in a General Journal, but I don't know if it is required to even write down. Signed a lease agreement to rent office space for $975 per month, beginning Feb 1st. Nothing was paid today. (This happened on Jan 15)
asked by Kate 
Math 12
I could really use some help with this problem. Joe bought 100 shares of stock at $10.00 per share. When the shares increased to a value of $N each, he made a charitable donation of all the shares to the Euclid Foundation. He received a tax refund of 60%
asked by M 
math
A) If x^2+y^3−xy^2=19, find dy/dx in terms of x and y. dy/dx=________ B) Using your answer for dy/dx, fill in the following table of approximate yvalues of points on the curve near x=1 y=3. 0.96 ______ 0.98 ______ 1.02 ______ 1.04 ______ C) Finally,
asked by lauren 
Georgia Highlands college
Estimate the average force that a baseball pitcher's hand exerts on a 0.145kg baseball as he throws a 39m/s pitch. Assume the pitcher accelerates the ball through a distance of 3.0 m, from behind his body to where the ball is released and ignore the air
asked by willis 
math
Given: 3x + y = 1. Solve for y. y = 3x + 1 y = 3x  1 y = 3x  1
asked by Casey 
english.
When did ebola spread to south africa. Like what month did it happen?
asked by Sarah 
Finance
24.) For the case shown in the following table, the future value of the single cash flow deposited today at the end of the deposit period if the interest is compounded annually at the rate specified equals Single Cash Flow $27,000 Deposit Period (years) 20
asked by Student5 
history
which best explains why archaeologists believe that native americans living during the mississippian period ( 1 point) A. tribal centers had churches and other symbols of worship B. Legends of an afterlife were passed down from generation to generation C.
asked by Ms. Sue Help 
math
if you have a gas tank that is 37" X 10"X 121/2" how many gallons of gas will it hold ?
asked by Lisa 
chemistry
what is the excess reactant of H2SO4+2NaOH>Na2SO4+2H2O H2SO4: NaOH: n=? n=? c=0.025M c=0.030M v=0.4L v=0.4
asked by lill 
S.S.
9. Under America's second party system, the Whigs stood for A. policies that directly supported commercial enterprises. B. policies that kept government hands off business and industry. C. a "liberally negligent" state. D. a "negative liberal state."
asked by Sarah 
Math
Find a fraction between 7/9 & 8/9
asked by Joe 
English II
Compare the literary and rhetorical devices in Elie Wiesel's Nobel Peace Prize Acceptance Speech and his novel Night. Explain how these elements impact tone and mood. Support your claims with evidence from the text.
asked by john 
Language Arts HELP!
Which of the following sentences contains a verb that is correctly formed in the perfect tense? A. Susan is spoken at our club before B. Beverly has wanted to be a singer for years C. Desmond has love swimming in the ocean D. Jake have painted in his room
asked by Anonymous 
Int.science
An inverse relationship can be represented by: a straight line a bar chart
asked by Casey 
math
How many packs of DVDs can you buy with 198 dollars if one pack costs 18 dollars
asked by Kris 
Calculus please help
The power, P, dissipated when a 6volt battery is put across a resistance of R ohms is given by P=36R. What is the rate of change of power with respect to resistance?
asked by lauren 
math
how do you estimate fractions? I know how to estimate numbers and decimals but the questions wants us to estimate fraction sand have the answer in fraction form. the question is : 2 1/10 divided by 1 1/5= how would these be estimated? without estimating I
asked by E6 
Grammar
1. Choose the answer that identifies the three cases of pronouns. nominative, objective, possessive nominative, antecedent, objective objective, possessive, prepositional objective, indefinite, possessive**** My answer
asked by Sara 
Chemistry
How many moles of ammonia are in 1.20E25 molecules of ammonia.
asked by Anon 
Algebra
What function represents the arithmetic sequence 3,7,11,15?
asked by Steve 
Language Arts HELP!
How fo you form the perfect tense of a verb? A. Use the helping verb (will) and the base form od a verb. B. Use a form of the verb (be) and the past participle of the verb. C. Use a form of the verb (have) and the present participle of the verb. D. Use a
asked by Anonymous 
English
what is another word for coordinating body? The WHO is the international coordinating body for battling the Ebola outbreak which has killed more than 4,500 people in West Africa. I need to change up the sentence so i won't be plagiarizing.
asked by Sarah 
math
how would you calculate the largest prime number given a number x so for example say someone inputs 8 , the largest prime number is 7.
asked by sam 
Algebra Slope Intercept Form
Write an equation in slope intercept form for each table x 7, 0, 7, 14 y 1, 1, 3, 5 What is the slope and y intercept
asked by M 
geometry
The volume of a basketball is 448.92 cubic inches, and the volume of a baseball is 12.77 cubic inches. How many baseballs would “fit” inside a basketball?
asked by ALBERT GRAY 
please help
Choose the answer that identifies the nominative case pronouns. I, you, he, she, it, us, you, they I, you, he, she, it, we, you, they I, you, he, she, it, we, you, them I, you, he, she, its, we, you, they # 3 is the answer?
asked by Sara 
Math
Car Rentals charge 20 dollars per day plus a 10 dollar service charge to rent one of its compact cars. The total cost can be represented by the equation y=20x+10 where x is the number of days and y is the total cost Graph the equation What do the slope and
asked by M 
Math
How do you divide 3/4 by 2/3?
asked by Mary 
physics
A 1075 kg van, stopped at a traffic light, is hit directly in the rear by a 705 kg car traveling with a velocity of +2.06 m/s. Assume that the transmission of the van is in neutral, the brakes are not being applied, and the collision is elastic. What is
asked by matt 
Chemistry
Solid urea, (NH2)2CO, burns to give CO2,N2, and liquid H2O. Its heat of combustion is 632.2 kJ/mol. Balance the equation for combustion of urea, and calculate the heat generated per mole of H2O formed. (Enter in kJ.)
asked by Kales 
Math Help!
Which set of numbers represents a pythagorean triple? A. 6,9,12 B. 7,10,12 C. 16,18,25 D. 27,36,45 Is the answer A?
asked by Anonymous 
math
Points A and B lie on the graph of the equation y = 4.3x. What are the y coordinates for each point? Point A: (3, ) Point B: (5, ) Not multiple choice.. confused on how to find the other points
asked by Anonymous 
chem
mole fraction of CHOHCH in H2O calculate molality of solution
asked by beza 
Math
The expression 9a + 6s is the cost for a adults and s students to see a musical performance. A. Find the total cost for three adults and five students. B. find the total cost for four adults and four students.
asked by Zero 
Language Arts HELP!
Which of the following sentences contains a verb in the future perfect tense? A. Andy is going to walk home with Beth every afternoon. B. Andy has been walking home with Beth every afternoon. C. Andy will walk home with Beth everyday next week. D. By
asked by Anonymous 
Science
A cell starts with 12 chromosomes, then goes through mitosis. How many cells are produced at the end of mitosis? How many chromosomes are in each of the cells at the end of mitoses? A cell starts with 12 chromosomes, then goes through meiosis. How many
asked by Jordyn 
confederation
William owes $9,000.00 to a friend who is charging him interest of 1.60% p.m. he is required to settle the amount with 2 equal payments, one today and the other in 2 months. Calculate the size of the payments using 2 months as the focal date. Round your
asked by manu 
Chemistry
When 5.4 g of NaCl and 3.6 g of AgNO3 are dissolved in water and mixed, what ions remain in the solution and how many moles of each will be there?
asked by Valeria 
Managerial Finance
24.) For the case shown in the following table, the future value of the single cash flow deposited today at the end of the deposit period if the interest is compounded annually at the rate specified equals Single Cash Flow $27,000 Deposit Period (years) 20
asked by Student5 
Math
Vanessa has 3 yards of cotton. She needs 3/4 yard for each skirt she makes. How many skirts can she make?
asked by Anonymous 
math
William owes $9,000.00 to a friend who is charging him interest of 1.60% p.m. he is required to settle the amount with 2 equal payments, one today and the other in 2 months. Calculate the size of the payments using 2 months as the focal date. Round your
asked by manu 
Trigonometry
Solve the equation cos2θ = 1/2sinθ 0º≤θ≤90º. (Hint: Graph each side of the equation and determine where the graphs intersect.)
asked by TeeKay 
Algebra Slope Intercept Form
Write an equation in slope intercept form for each table x 2, 0, 2, 4 y 12, 6 0, 6
asked by M 
biology
what is contracting subunit of skeletal muscle called
asked by Anonymous 
math
How do you solve this? 3y + 2 [6 9] [27 18] [12 15]=[30 6] 3y + 2 [6 9] [6 9] 3y + 2[0 0] [12 15] [12 15] = [0 0] 3y + 2 = [27 18]= 3y [27*2 18*2] [30 6] [30*2 6*2] 3y =[54 36] 3y /3[54/3 36/3] [60 8] = [60/3 8/3] y = [18 12] [20
asked by treshia 
math
Jack used the digits 4,5,6,7 to make the largest and smallest numbers possible. Then he subtracted the 2 numbers and came up with 2,997. What did Jack do wrong?
asked by Jake 
Physics
It takes 6.7 J of work to stretch a spring 4.4 cm from its unstressed (relaxed) length. How much work (in J) is needed to compress the spring an additional 3.8 cm? I found the spring potential energy to be 6.7 J, and the spring constant to be 6921.5. I
asked by Misaki 
CHEMISTRY
How many moles of magnesium are needed to react with 16 g of O2? 2 MgO (s) + O2 (g) → 2 MgO (s)
asked by KKK 
SCIENCE FOR 7TH GRADE
i need to conduct a scientific investigation and i need some ideas. Ex. " how does the amount of sunlight affect a plants growth" I need something like what is listed above. Thank you
asked by MAX123 
science
a ladder is at rest with its upper end against a wall and the lower end on the ground .Is the ladder more likely to slip,when a man stands on it at the bottom or at the top?gove reason.
asked by Akash 
math Help!!!!!!
Which set represents a pythagorean triple? A.27,38,42 B.33,44,55 C.35,38,42 D.68,72,81 Is the answer D?
asked by blue 
Trig calc
A) P is approximately (0.883, 0.469), is a point on the unit circle with angle 28 degrees estimate the following. Sin 152 degrees = Cos 152 degrees =
asked by Randy 
MATH
Juan has 28 paperback books. Each book is 1 1/4 inches wide. Will all his books fit on one shelf? If not, how many will fit and how many will have to go on another shelf? If yes, how many more paperback books, if any, will fit on the shelf?
asked by Bianca 
physics
suppose a soccer player boots the ball from a distance 35 m into the goal. find the initial speed of the ball if it just passes over the goal, 2.4 m above the ground, given the initial direction to be 40° above the horizontal
asked by Anonymous 
Chemistry
Suppose 100.0 mL of 1.00 M HCl and 100.0 mL of 1.00 M NaOH, both initially at 23.0°C, are mixed in a thermos flask. When the reaction is complete, the temperature is 29.8°C. Assuming that the solutions have the same heat capacity as pure water, compute
asked by Jonah 
physics
the mass of the truckand its contents is 7460kg. find the magnitude of the forces exerted by the ground a) the front wheels b)the rearwheels of the truck.
asked by Anonymous 
Maths Question
the slope of a curve y=f(x) is given by dy/dx= (x1)(x2)^2(x3)^3(x4)^4(x5)^5 for what value or values of x does y have a local maximum/miniumum? justify your answer. i tried solving this question but couldn't figure out how to do it. i even asked my
asked by Khyati 
physics
an object is attached to the lower end of a 100coil spring hanging from the ceiling.the spring stretches by 0.160m. the spring is then cut into two identical springs of 50 coils each. as the drawing shows, each spring is attached between the cieling and
asked by Anonymous 
Chemistry
An electrical heater is used to add 20.50 kJ of heat to a constantvolume calorimeter. The temperature of the calorimeter increases by 5.42°C. When 1.25 g of methanol (CH3OH) is burned in the same calorimeter, the temperature increases by 7.49°C.
asked by Kales 
trigonometry
The angles of elevation of the top of a tower as observed from the bottom and top of a building of height 6th are 60° and 45° respectively.The distance of the base of the tower from the base of the building?
asked by asmita 
physic
A pair of students are lifting a heavy trunk on movein day. (Figure 1) Using two ropes tied to a small ring at the center of the top of the trunk, they pull the trunk straight up at a constant velocity v⃗ . Each rope makes an angle θ with respect to
asked by physic please help 
physics
in preparation in shooting a pinball machine, a spring(k = 675N/m) is compressed by 0.0650m relative to its unstrained lenght.the ball(m = 0.0585kg) is at rest against the spring at point A. when the spring is released ,the ball
asked by Anonymous 
Canadian history
I am reading this article Disease, Wilderness Warfare, and Imperial Relations: The Battle for Quebec, 17591760 I need to do critical analysis I believe I know what author is trying to argue but a little more clarification would be great.
asked by Mohammad 
physics
astronauts on a distant planet set up a pendulum length 1.2m. the pendulum executes simple harmonic motion and makes complete vibrations in 280s. what is the magnitude of the acceleration due to gravity of this planet?
asked by Anonymous 
Algebra
Find the slope m=1600760/6040
asked by Patricia 
Science
What arrangement means in Science?...Thank you for your help.
asked by Damian 
ap calc
suppose that the position functions of 2 bugs B1 and B2 in motion along the same line are B1=1/2t^2t+3 and B2=1/4t^2+t+1 for t is greater than or equal to zero. a) prove the bugs will not collide b)how close do the bugs get to each other? I would greatly
asked by Anonymous 
Science Project: Teeth
What can I write in the discussion center of my paper in APA Style? Before doing an experiment?
asked by ren 
Calculus
Let f be a function such that f(−6)=−6, f(6)=6, f is differentiable for all real values of x and −1≤f'x≤1 for all real values of x. Prove that f(x)=x for all −6≤x≤6 I tried applying the mean value theorem here but I'm not sure where to
asked by Ss 
ap calc
I have solved the problem but am not sure it it is right. I would appreciate if you would check to see if my answer is right. The height of the ball thrown upwards from the top of a 20 foot hill is given by h(t)= 16t^2+90t+20 ft (where t is measured in
asked by Anonymous 
celebrating Diversity
Which one of the following qualities do not help children assess situations and assist them in interactions with others? A. Strong self esteem B. Respect for the view point of others C. Closedmindedness D. Flexibility A is the answer
asked by Amanda 
Math 222
Please help me solve these two Rational Expressions? Sorry my addition sign does not work on my keyboard, so that is why I am using the word "plus". 1). g^26g55 __________ g 2). k^3 plus k ___________ k^2 plus k42
asked by Monica 
ap calc
suppose that the position functions of 2 bugs B1 and B2 in motion along the same line are B1=1/2t^2t+3 and B2=1/4t^2+t+1 for t is greater than or equal to zero. a) prove the bugs will not collide b)how close do the bugs get to each other? I would greatly
asked by Anonymous 
Algebra
The function f(x) satisfies f(sqrt(x+1))=1/x for all x>= 1, x does not = 0. Find f(2). Couldn't you just plug it in? sqrt(3) would be 1/sqrt 3? Thank you.
asked by Trish Goal 
relativity
A runs at speed 4c=5 toward B, who is at rest. C is between A and B. How fast should C run so that she sees both A and B approaching her at the same speed? i have tried this but not sure we have to use relativity i thing. else without that i solved and got
asked by sophie 
Algebra
Let f(x)3x7/x+1. Fidnd the range of f. Give your answer as an interval. Please enter your response in interval notation. I figured out the range, ( inf,1) and (1, inf) Thank you.
asked by Trish Goal 
Math (Functions  Word Problem)
The numbers d (in millions) of drug prescriptions filled by independent outlets in the United States from 2000 through 2007 can be approximated by the model d(t)= 10.6t + 699, 0 ≤ t ≤ 4 15.5t + 637, 5 ≤ t ≤ 7 where t represents the year, with t=0
asked by Pao 
AP Gov
1. Which of the following is true about the Supreme Court? a. the justices have extended the right to privacy in all areas b. the justices ruled that the right to privacy includes gay and !@#$%^& consensual relations c. the justices have overturned Miranda
asked by Anonymous 
English
1. The last number of concert was impressive. 2. The last number of the concert was impressive. (Which one is correct? Do we have to use 'concert' or 'the concert'?) 3. Everyone was deeply impressed by the last number on the program. 4. Everyone was deeply
asked by rfvv 
Algebra
Let f(x)=x^2+4x31. For what value of a is there exaclty on real value of x such that f(x)=a? Thank you!
asked by Trish Goal 
English
1. The crowd was small. 2. The crow were deeply impressed by the concert. 3. The audience was large/big. 4. The audience were began to talk loudly. 5. The family is large/big. 6. The family are all well. 7. The committee is composed of 6 members. 8. The
asked by rfvv 
Math Help!
If the lengths of the legs in a right triangle are 7 and 8, what is the approximate length of the hypotenuse? A. 1.4 B. 3.8 C. 5.4 D. 10.8 Is the answer D? Thanks
asked by Anonymous 
Algebra
Let f(x)=3x^24x. Find the constant k such that f(x)=f(kx) for all real numbers x. Thank you!
asked by Trish Goal 
Math1 question plz?
Use the Distributive Property to multiply. (x – 9)5
asked by Anonymous 
math algebra
A new shopping is opening this month.before agreeing to open shops, store managers had toconsider monthly rent and whether to pay one time fee to put shop name on sign in front of store. Kikis kupcakes number of months total rent paid 2 9700 5 16750 8
asked by taylor 
Algebra
Let f be a function such that f(x+y)=x+f(y) for any two real numbers x and y. If f(0)=2, then what is f(2012)? Thank you!
asked by Trish Goal 
Algebra
The rate at which water evaporates from a certain reservoir depends on the air temperature. The table below shows the number of acrefeet (af) of water per day that evaporate from the reservoir for various temperatures in degrees Fahrenheit. Temperature,
asked by Kim 
Algebra
Is the following relation a function? ((0.3, 0.6). (0.4,0.8), (0.3,0.7), (0.5,0.5))
asked by Steve 
US History
After the revolution, why were states hesitant to give up power?
asked by Joul 
Math Help!
Which set represents a Pythagorean triple? A. 2,5,6 B. 6,8,10 C. 8,8,128 D. 8,10,256 Is the answer D?
asked by Anonymous 
Physics
The helicopter in the drawing is moving horizontally to the right at a constant velocity. The weight of the helicopter is W=54300 N. The lift force L generated by the rotating blade makes an angle of 21.0° with respect to the vertical. (a) What is the
asked by Tami 
Business
If you had to use a body part to represent that someone is independent. Which body part would you use and why?
asked by Liza 
statistics
3. Community Health Center, a new patient clinic in your town serving only underinsured and uninsured patients, has asked you to help its HIM department. Calculate the number of shelving units needed for a medical record filing system based on eight
asked by Deb 
Algebra
Mark starts a rock climb when he is 1 mile above sea level. He can climb at the rate of 1.5 miles per hour. Which of the following functions would express Mark's height above sea level over time? f(x) = 1.5x f(x) = 1 + 1.5x f(x) = 2.5x
asked by Harry Potter 
math Help!!!!!!
Which set represents a Pythagorean triple? A.1,2,4 B.2,4,6 C.3,4,10 D.5,12,13 Is the answer C?
asked by blue 
Algebra
Complete the range of the function f(x)=sqrt(x^2). Thank you!
asked by Trish Goal 
Science
What arrangement means in Science?...Thank you for your help.
asked by Damian 
ap calc
two particles are moving along a linear track according to the functions x1=t^2+2t and x2=t^2+8t+80 for t is greater than or equal to zero. a)at what value of t will the two particles be in the same place b)will they be going in the same or opposite
asked by Anonymous 
Physics
A 1410kg submarine rises straight up towards the surface. Seawater exerts both an upward buoyant force of 16760 N on the submarine, as well as a downward resistive force of 1080 N. What is the submarine's acceleration?
asked by Tami 
arithmetic
The minute hand on a clock is 49mm long. What area does it pass over in 30 minutes.
asked by Vanetta 
Physics
A car is traveling up a hill that is inclined at an angle θ above the horizontal. Determine the ratio of the magnitude of the normal force to the weight of the car when (a) θ = 18o and (b) θ = 30o.
asked by Tami 
celebrating Diversity
Which one of the following is not a game designed for helping children with language learning? A. Jumping Fun B. Crack the Whip C. Shopping Game D. Follow the Leader B is the answer.
asked by Amanda 
physics
i need help setting up the equation. do i break up the problem into two parts? thanks in advance. A 3 kg block travels along a horizontal surface with a coefficient of kinetic friction of 0.18 at a speed of 7 m/s. After sliding a distance of 1.8 m the
asked by please help 
math
A college student is looking at her monthly checking account records. On September 1, 2008, her checking account held a balance of $1,050. At the end of March 2009, her checking account held a balance of $800. What is the monthly rate of change for the
asked by danielle 
History
During the election of 1936, declaring their party a "millionaire's union," Franklin Roosevelt focused mainly on defeating the A. Liberty League running Father Coughlin. B. Union Party running Gerald K. Smith. (C. Liberty League running Alfred M. Landon.)
asked by Lauren 
math
If vector u = [1,3,2] and vector v = [4,5,3] find: a) vector u + vector v  5j  b) Find Q, where P (7,5,1] and vector PQ=2(vector u) c)find vector w which is orthogonal to both vector u and vector v
asked by Tina 
GLOBAL HISTORY 10 REGENTS!!
Who (what group) was responsible for making moderate reforms during the French Revolution?
asked by Kim 
math
Start from 110 feet away, a person on a bicycle rides towards a checkpoint and then passes it. The rider is travelling at a constant rate of 30 feet per second. The distance between the bicycle and he checkpoint is given by the equation d = 110  30t. At
asked by Annie 
Math Help!
What is the hypotenuse of a right trianlgle if the legs are each 20 inches long? Round to the nearest whole number. A. 28 B. 29 C. 30 D. 31 Is the answer B? Thanks
asked by Anonymous 
Math
A decimal number changed to 23.7 after it was rounded. Give a decimal number that is less than 23.7 and another that is greater than 23.7 that each round to 23.7. Explain to what place each number was rounded.
asked by Anonymous 
science!!
A couple has just learned that their daughter has hemophilia. They already have a son who does not have the disease. What are the genotypes of the couple? Explain your reasoning.  The gene for hemophilia is sexlinked, a recessive on the
asked by bells 
English/help almost due
which writer of early romanticism—Washington Irving, James Fenimore Cooper, and William Cullen Bryant —do you think has had the greatest impact, and why
asked by Anonymous 
French
If I introduce to you "un copain," is the person a boy, girl, or a teacher?
asked by Anonymous 
Chemistry
88L sample of dry air cools from 197 degree celsius to 48 degrees celsius while the pressure is maintained at 2.93 atm. what is the final volume?
asked by Dyonna 
Math Help!
Which set represents a Pythagorean triple? A. 1,2,4 B. 2,4,6 C. 3,4,10 D. 5,12,13 Is the answer D? Thanks
asked by Anonymous 
science
what is kinetic energy and potential energy? Can u give me an example. thank you.
asked by Anonymous 
Math
Can you also use the LCM of the denominators of the fractions to rewrite the difference 8/151/6? What is the difference?
asked by Anonymous 
Accounting
On the balance sheet under current assets there is an amount called Accounts receivables less allowances. Does it mean its already the net accounts receivable? or do i have to subtract it to get the net?
asked by HAQUE 
Physics
A massless pan hangs from a spring that is suspended from the ceiling. When empty, the pan is 50 cm below the ceiling. If a 105 g clay ball is placed gently on the pan, the pan hangs 60 cm below the ceiling. Suppose the clay ball is dropped from the
asked by Anonymous 
Physics
A box slides from rest down a frictionless ramp inclined at 35.0° with respect to the horizontal and is stopped at the bottom of the ramp by a spring with a spring constant of k = 3.50 104 N/m. If the box has a mass of 12.0 kg and slides 3.00 m from the
asked by Anonymous 
Physics
An artillery shell is fired at an angle of 67.4◦ above the horizontal ground with an initial speed of 1560 m/s. The acceleration of gravity is 9.8 m/s2 . Find the total time of flight of the shell, neglecting air resistance. Find its horizontal range,
asked by Becca 
Algebra
What is the domain of the function l(y)= 1/(y2)+(y8)? Thank you!
asked by Trish Goal 
Physics Mechanics
A 2.30 kg block is acted upon by a horizontal force F(x) = 30.0  10.0x where the force is measured in Newtons if x is measured in meters. The coefficient of kinetic friction between the block and the flat surface is 0.170. The block is initially at x = 0
asked by Aya Serghosian 
Business
Which body part would you give to someone who is perceptive. Like, sees what's wrong with the business and changes it for the better
asked by Liza 
History
What did not contribute to the economic growth in the 1950s? A. Baby Boom B. Cold War Spending C. Agricultural Expansion D. Increased Consumer Goods Manufacturing Im stuck between C and D
asked by Lauren 
algebra
You have 10,000.00 to invest in two types of stock. the expected annual returns for the stocks are: stock A  10 percent, stock b  6 percent. You want the overall annual return to be 8 percent. Write a linear system of equations that represents the given
asked by Regan 
physics
find by calculation,the resultant two equal forces of 6N each acting at a 4N point at an angle of (a) 60 degree (b)120 degree with each other{hint cos120= cos60 =1 and half or 1/2
asked by victory 
physics
find by calculation,the resultant two equal forces of 6N each acting at a 4N point at an angle of (a) 60 degree (b)120 degree with each other{hint cos120= cos60 =1 and half or 1/2 cos 60 =V2
asked by victory 
Chemistry
A home swimming pool contains 145 m3 of water. At the beginning of the swimming season, the water must be heated from 20 to 32°C. How many joules of heat energy must be supplied?
asked by Kales 
celebrating Diversity
When do children begin to notice differences in gender, race, and ability? A. Only when adults make them aware of these differences B. From 8 10 years old. C. During the preschool years D. From the moment they're born This answer is C.
asked by Amanda 
math
if you have 6 cars, 10 trucks, 14 suv, 15 minivan, at this rate how many trucks would pass luann if 90 vehicles passed her. show your work
asked by alyssa 
algebra
What is the range of the function r(x)1/(1x)^2? Express your answer in interval notation. Thank you!
asked by Trish Goal 
math
a ream of paper contains 500 sheets how many reams are needed to type a manuscript of 6000 pages explain how you know
asked by Lakshmi 
math
a poetry class won a $325 prize.the 13 students in the class share the prize equally.how many dollars,d,does each student receive?use the area model to help
asked by Lakshmi 
Algebra
What are two numbers that add to 615 but multiply to 90000? I'm trying to factor the quadratic x^2+615x90000
asked by Becca 
celebrating Diversity
A basketball team depends on the many talents of its players. This is an example of A. multiculturalism. B. inclusion. C. tolerance. D. diversity. D is my answer.
asked by Amanda 
Math question?
Solve for t. Show all steps. t over 5= 8
asked by Anonymous 
science
how do the instincts of migration and hibernation help animals to survive
asked by trololololo 
celebrating Diversity
Understanding culture is critical for anyone who works with young children because A. the children in our care most often have the same cultural beliefs as we do. B. our cultural beliefs effect every interaction that we have. C. we want children to
asked by Amanda 
science
is this an example of potential energy with household item? t.v
asked by Anonymous 
Chemistry
A coin dealer, offered a rare silver coin, suspected that it might be a counterfeit nickel copy. The dealer heated the coin, which weighed 14.0 g to 100°C in boiling water and then dropped the hot coin into 27.5 g of water at T = 17.0°C in an insulated
asked by Kales 
Physics
A camera falls from a blimp that is 744 m above the ground and rising at a speed of 15.5 m/s. Find the maximum height reached by the camera with respect to the ground. The acceleration of gravity is 9.8 m/s^2. Answer in units of m. PLEASE HELP SOON
asked by Josh