Friday

August 28, 2015
**statistics**

You and three (3) of your friends were in the same advance placement high school chemistry class in high school. All four (4) of you decided to take the same chemistry class together at the local university along with 21 other students. On the first day of class, the professor...
*Saturday, March 3, 2012 by d's*

**College Chem 2 **

calculate the solunility of silver chromate, Ag2CrO4, in 0.005 M NA2CrO4- Ksp=2.6x10-12 Please help.....
*Saturday, March 3, 2012 by Deb*

**COLLEGE CALCULUS. **

Use implicit differentiation to find the equation of the tangent line to the curve xy^3+xy=5 at the point (4,1) . The equation of this tangent line can be written in the form y = mx+b where m is:? and where b is:?
*Friday, March 2, 2012 by josie*

**American Gov't**

Which statement is NOT true about Congress? 1.)It was originally intended to be an elite governing body 2.)The vast majority of its members have college degrees 3.)The age requirement is the same for both houses 4.)Most members are lawyers
*Friday, March 2, 2012 by Mackenzie*

**Basic Statistics**

In each of the following situations state whether or not the given assignment of probabilities to individual outcomes is legitimate, that is, satisfies the rules of probability. If not, give a reason a) roll a die and record the count of spots on the up-face P(1)=0 P(2)=1/6 P(...
*Friday, March 2, 2012 by Martin*

**college implicit HELP!**

I WANNA KNOW I'M DOING RIGHT. Find the slope of the tangent line to the curve √(3x+2y) + √(4xy)=11.6 at the point (6,4). THAT WHAT I DID: (3x+2y)^1/2+(4xy)1/2=11.6 next step: 1/2(3x+2y)^-1/2*y'+1/2(4xy)*y=0 y'= -(3x+2y)/(4xy) right?
*Thursday, March 1, 2012 by josephine*

**3 grade english**

when you read you can somethimes make a general statement, or generalization,about inividual ideas in the text. a generalization tells how ideas are mostly alike or all alike. directions read the following passage. people of all ages can play basketball young children join ...
*Thursday, March 1, 2012 by dk*

**college math**

finding the square x^2+16x=0
*Thursday, March 1, 2012 by Anonymous*

**college calculus**

how do i solve sin(x)+2cos(2x)=0
*Wednesday, February 29, 2012 by Anonymous*

**3 grade english**

graphic sources are sources of information such as maps charts illustractions,and captions. graphic sources help us understand information in a text,or they can provide information on their own. directions read the following chart. then answer the questions. michael jordan ...
*Wednesday, February 29, 2012 by dw*

**COLLEGE CALCULUS. HELP!**

i dont know how to start this problem. i dont like cos and sin. im so confuse. 1.f(x)=sin(sin(x)), find f'(x) 2.f(x)= 4sin^4x, find f'(x). this problem i couldnt find it in my math book. i never see it before. because of sin exponent 4 -->sin^4
*Tuesday, February 28, 2012 by stacy*

**strayer**

You and three (3) of your friends were in the same advance placement high school chemistry class in high school. All four (4) of you decided to take the same chemistry class together at the local university along with 21 other students. On the first day of class, the ...
*Tuesday, February 28, 2012 by meka*

**COLLEGE CALCULUS. HELP!**

1. If f(x)=tan3x, find f'(x) and f'(3). 2. let f(x)=3cos(cosx), find f'(x). i got stuck. i dont know im doing it right way, f'(x)=tan3x*1
*Tuesday, February 28, 2012 by dania*

**college algebra**

A triangle is bounded by the x-and y-axes and must pass through P(2,2) a.) find the area of the triangle as a function of x (Hint: let C be the point (0,2) and D be the point (2,0). Use the fact that ACP and PDB are similar triangles.) b.) What is the domain of the function ...
*Tuesday, February 28, 2012 by Melissa*

**college 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) Temperature (F) 15 2200...
*Tuesday, February 28, 2012 by Melissa*

**college algebra**

A rectangle is bounded by the x-and y- axes and the graph of y = -1/2x + 4. a.) Find the area of the rectangle as a function of x. b.) Complete the following table x area 1 2 4 6 7 c.) What is the domain of this function?
*Tuesday, February 28, 2012 by Melissa*

**college algebra**

A magazine company had a profit of $98,000 per year when it had 32,000 subscribers. When it obtained 35,000 subscribers, it had a profit of $117,500. Assume that the profit P is a linear function of the number of subscribers s. a.) Find the function P b.) What will the profit ...
*Tuesday, February 28, 2012 by Melissa*

**college algebra**

A magazine company had a profit of $98,000 per year when it had 32,000 subscribers. When it obtained 35,000 subscribers, it had a profit of $117,500. Assume that the profit P is a linear function of the number of subscribers s. a.) Find the function P b.) What will the profit ...
*Tuesday, February 28, 2012 by Anonymous*

**college 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) Temperature (F) 15 2200...
*Tuesday, February 28, 2012 by Anonymous*

**college algebra**

A triangle is bounded by the x-and y-axes and must pass through P(2,2) a.) find the area of the triangle as a function of x (Hint: let C be the point (0,2) and D be the point (2,0). Use the fact that ACP and PDB are similar triangles.) b.) What is the domain of the function ...
*Tuesday, February 28, 2012 by Anonymous*

**college algebra**

A rectangle is bounded by the x-and y- axes and the graph of y = -1/2x + 4. a.) Find the area of the rectangle as a function of x. b.) Complete the following table x area 1 2 4 6 7 c.) What is the domain of this function?
*Tuesday, February 28, 2012 by Anonymous*

**college algebra**

Can anyone please help me with this? for the function f(x) =1/x....f(x)is increasing on the interval(s) and f(x) is decreasing on the interval(s)???
*Tuesday, February 28, 2012 by Carol*

**college algebra**

suppose the revenue in dollars from selling x cell phones is R(x)= -1.2x^2+220x. the cost in dollars of selling x cell phones is C(x)=0.05x^3-2x^2 +65x+500. find the profit function P(x)=R(x)-C(x). find the profit if x=15 hundred cell phones sold
*Monday, February 27, 2012 by Carol*

**college algebra**

A steel drum in the shape of a right circular cylinder is required to have a volume of 100 cubic feet. express the amount of material required to make the drum as a function of the radius r of the cylinder. also how much material is required if the drum is of radius 3 feet?
*Monday, February 27, 2012 by Carol*

**stats**

please help How do you construct a pay of table?????? . Dr. Mike Adams, a local brain surgeon, believes there is a lot of money to be made renting apartments to students here in Alamosa. He is considering constructing one, two, or possibly three apartment complexes, each of ...
*Monday, February 27, 2012 by tim*

**college**

Joan wants to start an IRA that will have $250,000 in it when she retires in 21 years. How much should she invest annually in her IRA to do this if the interest is 16% compounded quarterly?
*Monday, February 27, 2012 by Anonymous*

**COLLEGE CALCULUS. HELP!**

1. If f(x)=sin(x^2), Find f'(x) and f'(1) 2. If d/dx(f(3x^3))=9x^2, Calculate f'(x). 3. Let f(x)=cos(6x+6), find f'(x) 4. Let f(x)=-2sec(2x), find f'(x)
*Monday, February 27, 2012 by stacy*

**COLLEGE CALCULUS. **

i don't understand this problem Let F(x)=f(x^4) and G(x)=(f(x))^4. You also know that a^3=2, f'(a)=13, f'(a^4)=15. Find F'(a) and G'(a).
*Monday, February 27, 2012 by LISA*

**college**

Assignment Testing a Theory Write at least 300 words describing a time when you had to test a theory. This theory may be something you have tested at work, school, or even at home. Answer the following questions in your summary: • What type of informal research method did...
*Sunday, February 26, 2012 by shellie*

**college chemistry**

A solution is made by adding 0.100 mole of ethyl ether to 0.841 mole of ethyl alcohol. If the vapor pressure of ethyl ether and ethyl alcohol at 20oC are 375 torr and 20.0 torr, respectively, the vapor pressure of the solution at 20oC (assuming ideal behavior) is:
*Sunday, February 26, 2012 by renee*

**Problem with 2 English sentences (French student)**

Bonjour! Dans un livre, j'ai lu cette phrase (je précise que l'auteur parle d'une situation présente aux États-Unis): Starbucks promised to create a new line of three fair-trade-certified whole-bean coffees (and four more under its Seattle'...
*Sunday, February 26, 2012 by green_heart*

**college algebra**

Write in y=mx+b form the line perpendicular to 5x-y=2 passing through (10,-2)
*Sunday, February 26, 2012 by Missy*

**college algebra**

Given f(x)= x^2-3+2 and g(x)=2x-4 find (fg)(-3)
*Sunday, February 26, 2012 by Missy*

**college algebra**

Given f(x) = sqrt of x+4 and g(x) = 1/x find (gof)(x).
*Sunday, February 26, 2012 by Missy*

**COLLEGE CALCULUS. HELP!**

Find the derivative of the function. 1. F(x)= (1+2x+x^3)^1/4 2. f(t)= (1+tant)^1/3
*Sunday, February 26, 2012 by cynthia*

**homework college chem.**

a sample of gas occupies a volume at 73. 1 mL. As it expands, it does 135.0 J of work on its surroundings at a constant pressure of 783 torr. what is the final volume of gas?
*Sunday, February 26, 2012 by danielle*

**College Physic I**

A student (m = 66 kg) falls freely from rest and strikes the ground. During the collision with the ground, he comes to rest in a time of 0.04 s. The average force exerted on him by the ground is +18000 N, where the upward direction is taken to be the positive direction. From ...
*Saturday, February 25, 2012 by Angela*

**COLLEGE CALCULUS. HELP!**

Let f(x)=(-3x^2+6)^4(9x^2+7)^14, Find f'(x). f'(x)= (-3^2+6)^4 d/dx(9x^2+7)^14+(9x^2+7) d/dx(-3x^2+6)^4 =(-3x^2+6)x14(9x^2+7)^13 d/dx(9x^2+7)+(9x^2+7)^14x4(-3x^2+6)^3 d/dx(-3x^2+6) =14(-3x+6)^4(9x^+7)^13 (18x)+ 4(9x^2+7)(-3x^2+6)^3 (-6x)
*Saturday, February 25, 2012 by cynthia*

**College Physic I**

A space probe is traveling in outer space with a momentum that has a magnitude of 4.99 x 107 kg·m/s. A retrorocket is fired to slow down the probe. It applies a force to the probe that has a magnitude of 1.87 x 106 N and a direction opposite to the probe's motion. ...
*Saturday, February 25, 2012 by Angela*

**college algebra**

find the asymptotes of the function F(x) = 7- ln(x-5)
*Saturday, February 25, 2012 by Badar*

**college Calculus Help!**

Find the derivative of the function. 1. F(x)= (1+2x+x^3)^1/4 2. f(t)= (1+tant)^1/3 ---> i hate trig. 3. y=4sec5x 4. y=xsin√x
*Saturday, February 25, 2012 by dania*

**college Calculus Help!**

Find the derivative of the function. 1. F(x)= (1+2x+x^3)^1/4 2. f(t)= (1+tant)^1/3 ---> i hate trig. 3. y=4sec5x 4. y=xsin√x
*Saturday, February 25, 2012 by dania*

**english - Writeacher?**

Can someone look over my defitional essay. I'm comparing traditional versus modern family and using the reality tv as my examples arguing that modern is better. Using my own definition. Would like to know if the sentences are in the essay are okay. I am not good at wording...
*Saturday, February 25, 2012 by Farrell*

**Math**

Kelly plans to put her graduation money into an account and leave it there for 4 years while she goes to college. She receives $750 in graduation money and she puts it into an account that earns 4.25% interest compounded semi-annually. How much will be in kelly's account ...
*Friday, February 24, 2012 by Anonymous*

**college algebra**

Given f(x)=sqrt x+4 and g(x)= 1/x find (fog)(x)
*Friday, February 24, 2012 by Missy*

**college algebra**

Given f(x)= 3x^2+x-30 and g(x)=x-3 find f(x)-g(x)
*Friday, February 24, 2012 by melissa*

**Axia College **

Need help with solving the double equation problem. 3x + 2y = 3 9x - 8y = -2
*Thursday, February 23, 2012 by Beth *

**college/ pre-cal**

a square fence 9 feet high enclosing a radio tower is 3 feet from the tower on all 4 sides. guy wires used to hold the tower in position are attached to the tower 30 feet above the ground and 13 feet from the fence on all 4 sides. How long are the guy wires to the nearest foot.
*Thursday, February 23, 2012 by theresa*

**to Ms.Sue**

Thank you so much. I bet when I'm in college I will still need your help!
*Thursday, February 23, 2012 by Celest*

**college algebra**

Find the vertex for f(x)=-5x^2-6x=3
*Thursday, February 23, 2012 by melissa*

**college algebra**

Find the maximum or minimum for f(x)=3x^2+x+1
*Thursday, February 23, 2012 by missy*

**college algebra**

given f(x)=4x-5, g(x)= x+5 over 4 Find (fog)(x). are these inverse functions?
*Thursday, February 23, 2012 by missy*

**College Physics**

A Fraunhofer diffration pattern is produced on a screen 210cm from a single slit. The distance from the center of the central maximum to the first-order maximum is 7560 times the wavelength (lambda). Calculate slit width. Answer in __m
*Thursday, February 23, 2012 by Annie*

**College Physics**

The lines in a grating are uniformly spaced at 1530 nm. Calculate the angular separation of the second order bright fringes between light of wavelength 600nm and 603.11nm. Answer in __mrad
*Thursday, February 23, 2012 by Annie*

**college alg**

A meat market has ground beef that is 40% fat and extra lean ground beef that is 15% fat. How many pounds of each(ground beef and extra lean) must be together to get total of 50 pounds of "lean" ground beef that is 25% fat?
*Thursday, February 23, 2012 by mercy*

**reading skills**

) After my interview with these four young people, I reflected on the quiet sense of "difference" I sensed with many of these Upward Bound students. (2) As a college teacher who has also taught seventh-grade science, I have some experience with the faces and ...
*Thursday, February 23, 2012 by Shatavia*

**College Algebra 1050**

Assume you are on a planet with a gravity constant g (instead of 32 feet per second squared) and a speed of sound c (instead of 1100 feet per second), and that you hear the impact of the rock after t seconds. Then the depth of the well is x feet, where your answer depends on g...
*Wednesday, February 22, 2012 by John*

**college algebra**

what is 5/a-3b/a^2
*Wednesday, February 22, 2012 by Cambren*

**College Chemistry**

C6H6(l) + Cl2(g) --> C6Cl6(s) + HCl(g) Consider the unbalanced equation above. What is the maximum mass of each of the products that can be formed when 72.5 g of C6H6 and 49.0 g Cl2 react?
*Wednesday, February 22, 2012 by Jade*

**College Geology**

assume that a particular radioactive-isotope has a half-life of 100 million years. Also assume that the parent isotope is incorporated into the minerals found in igneous rocks and that the only daughter atoms in the rock formed from the decay of the parent isotope. ...
*Wednesday, February 22, 2012 by Rob*

**college physic**

Liquid helium is stored at its boiling point temperature of 4.2K in a shperical container(r=0.30m).The container is a perfect blackbody radiator.The container is surrounede by a sherical shield whose temperature is 77k.A vacuum exists in the space between the container and the...
*Wednesday, February 22, 2012 by noah*

**college physic**

Liquid helium is stored at its boiling point temperature of 4.2K in a shperical container(r=0.30m).The container is a perfect blackbody radiator.The container is surrounede by a sherical shield whose temperature is 77k.A vacuum exists in the space between the container and the...
*Wednesday, February 22, 2012 by noah*

**college physic**

A solid cylindrical rod made from a center cylinder of lead and an outer concentric jacket of copper.Except for its ends,the rod is insulated,so that the loss of heat from the curved surface is negligible.When a temperature difference is maintained between its ends,this rod ...
*Wednesday, February 22, 2012 by noah*

**Math 208**

Question number 5 is talking about a public four-year college. So we know this: 2000-$3,500 2001-$3,700 2002- ? 2003- ? 2004-? 2005-$5,100 Repeating exercise 1-4 it is talking about private four-year college. So we know this: 2000-$16,200 2001-$17,300 2002- ? 2003- ? 2004- ? ...
*Tuesday, February 21, 2012 by Wanda*

**law**

Identify and analyze the different crimes for which students are most at risk for in K-12, include some of the differences in victimization found across elementary, middle school, high schools, and college. why you think these crimes occur within the schools. Mention at least ...
*Tuesday, February 21, 2012 by sharday*

**law**

In your opinion should there be a specific curriculum included in school and college syllabus which would teach students on interpersonal cohesiveness?
*Tuesday, February 21, 2012 by sharday*

**college algebra**

Find the domain of the function. q(s) = sqrt of 81-s^2
*Tuesday, February 21, 2012 by missy*

**college algebra**

t(x)=2x^2-1, Find t(2/3)
*Monday, February 20, 2012 by missy*

**law**

Identify and analyze the different crimes for which students are most at risk for in K-12, include some of the differences in victimization found across elementary, middle school, high schools, and college. Provide reasons why you think these crimes occur within the schools. ...
*Monday, February 20, 2012 by sharday*

**College Math**

Natasha drove from Bedingsfield to Portsmouth at an average speed of 100 km/h to attend a job interview. On the way back she decided to slow down to enjoy the scenery, so she drove at just 75 km.h, Her trip involved a total of 3.5 hours of driving time. What is the distance ...
*Sunday, February 19, 2012 by Toney*

**Algebra**

Gymnast Clothing manufactures expensive soccer cleats for sale to college bookstores in runs of up to 500. Its cost (in dollars) for a run of x pairs of cleats is C(x) = 3000 + 9x + 0.1x2 (0 ≤ x ≤ 500). Gymnast Clothing sells the cleats at $130 per pair. Find the ...
*Sunday, February 19, 2012 by Eric*

**College Math**

Only 43% ofthe carbon-14 in an artifact remains. How old is the artifact? Would the answer be less than the half life?
*Sunday, February 19, 2012 by Angel*

**College Physics**

Answer the following questions for a mass that is hanging on a spring and oscillating up and down with simple harmonic motion. Note: the oscillation is small enough that the spring stays stretched beyond its rest length the entire time. Options for each question are (Top, ...
*Sunday, February 19, 2012 by Jerry*

**Algebra**

Gymnast Clothing manufactures expensive soccer cleats for sale to college bookstores in runs of up to 500. Its cost (in dollars) for a run of x pairs of cleats is C(x) = 3000 + 9x + 0.1x2 (0 ≤ x ≤ 500). Gymnast Clothing sells the cleats at $130 per pair. Find the ...
*Sunday, February 19, 2012 by Nick*

**Math**

Gymnast Clothing manufactures expensive soccer cleats for sale to college bookstores in runs of up to 500. Its cost (in dollars) for a run of x pairs of cleats is C(x) = 3000 + 9x + 0.1x2 (0 ≤ x ≤ 500). Gymnast Clothing sells the cleats at $130 per pair. Find the ...
*Sunday, February 19, 2012 by Mandie*

**College Algebra**

A projectile is thrown upward with an initial velocity of 272 feet per second. After t seconds, its height h(t)above the ground is given by the function : h(t)=-16t^2+272t. a. Determine the projectile's maximum height. b. Determine how long it takes the projectile to reach...
*Saturday, February 18, 2012 by Amelia*

**College Chemistry**

How much Ca(OH)2 is required to remove 90.0% of PO4^-3 from 7.5 times 10^6 L of drinking water containing 25 mg/l of PO4^-3?
*Friday, February 17, 2012 by Emily*

**College Physics**

A 4.8 kg object is subjected to two forces, F~ 1 = (2.8 N) ˆı + (−2.1 N) ˆ and F~ 2 = (3.3 N) ˆı + (−10 N) ˆ. The object is at rest at the origin at time t = 0. What is the magnitude of the object’s acceleration? ...
*Friday, February 17, 2012 by Evita*

**college physics**

A 1500 wrecking ball hangs from a 16 -long cable. The ball is pulled back until the cable makes an angle of 23.0 with the vertical.
*Thursday, February 16, 2012 by stew*

**College: HCA/220 Week 3 DQ 2**

You are a health care administrator, and the nursing supervisor approaches you with concerns about documentation in a patient's chart. While reading the chart, you discover some concerns regarding how things are being documented. Begin discussing the patient's medical ...
*Thursday, February 16, 2012 by Christina Mader*

**Psychological Statistics **

A random selection of files from a student counseling center revealed the following reasons why college students seek services: Mental health issues 25 Learning/school issues 15 Relationship issues 5 Other 5 What does it mean to say the files were randomly selected? How would ...
*Thursday, February 16, 2012 by Jeff*

**College algebra**

I would like to build a fench for my poodle 8 feet long and 4feet high. What is the inches, feet yards and miles or meters. and determine the perimeter.
*Wednesday, February 15, 2012 by Beatrice Poles*

**college algebra**

What is the answers and break down of them, Typing hint: Type x 2 as x^2 (shift 6 on the keyboard will give ^) 1) Solve the following quadratic equation by factoring: a) 7 010 2 xx =++ Answers: Show your work here: b) Solve the quadratic equation using the quadratic formula. ...
*Tuesday, February 14, 2012 by jim*

**college algebra**

IF THIS WAS 1500 SQFT. WHAT WOULD IT LOOK LIKE.I have two small Yorkies that love to go outside and play, so being on a leash just doesn’t work for them. So I decided to get them a fence so they can play how they like too. I live in a townhouse, its 1600 sqft yet its big ...
*Tuesday, February 14, 2012 by jim*

**college physics**

calculate the specific heat of 200g of substance whose temperature is 30 degree celcius if it is mixed with 200g of water heated in a 300g iron container at 100 degree celcius. the final temperature of the mixture is 98 degree celcius.
*Tuesday, February 14, 2012 by albert*

**college physics**

calculate the specific heat of 200g of substance whose temperature is 30 degree celcius if it is mixed with 200g of water heated in a 300g iron container at 100 degree celcius. the final temperature of the mixture is 98 degree celcius.
*Tuesday, February 14, 2012 by albert*

**College Physics**

A tiger leaps horizontally from a 15.0 m high rock with a speed of 7.10 m/s. How far (in meters) from the base of the rock will it land?
*Tuesday, February 14, 2012 by Charles*

**college physics**

what is the force applied in the direction of the wire at a point attached to the patient in a traction system if the mass applied ius equal to 5kg.?
*Tuesday, February 14, 2012 by albert*

**college chemistry**

Guys i really need help in these three problems. If someone could explain how to do this i would appreciate it! complete and balance the following equations 1. SO3^2- + Cu^2+ --> SO4^2- + Cu^+ 2. Cr +Cu^2+ ---> CrO4^2- + Cu^+ 3. MnO2 + Ag^+ ---> MnO4^- + Ag
*Tuesday, February 14, 2012 by Keisha*

**college chemistry**

At a prominent state hospital, a 45-year-old woman is receiving a ‘combined modality' treatment for the initial stage of breast cancer. State the two aspects included in this treatment. State the methods by which a radiation oncologist can administer these therapies. ...
*Tuesday, February 14, 2012 by bubby*

**College mathematics 1**

The end of a 30 inch pendulum describes an arc of 6 inches through what angle does the pendulum swing?
*Tuesday, February 14, 2012 by Linda*

**college math**

Assume that there are 11 girls and 9 boys in the neighborhood club, and a team of 6 is to be selected. How many different teams can be selected if each team must contain exactly 3 girls and 3 boys?
*Monday, February 13, 2012 by Haley*

**College Chemistry**

previous answer to problem before this one(relevant in 2nd half of this question): 294.472689amu what would be the mass of 1.36 moles of these atoms? Enter your answer here: ____ g
*Monday, February 13, 2012 by Kayla*

**Health - Violence and Injury**

1. Which of the following is/are common characteristic(s) of child abusers? a. frustration with life b. has experienced violence in their life c. low socioeconomic status d. All of these 2. Jane is being harassed by a coworker. You would tell her to a. confront the person ...
*Monday, February 13, 2012 by Ashley*

**statistics**

Assume that the population of heights of female college students is approximately normally distributed with mean m of 66 inches and standard deviation s of 4.00 inches. Show all work. (A) Find the proportion of female college students whose height is greater than 65 inches. (...
*Sunday, February 12, 2012 by Tiffany*

**Math**

Nico is saving money for his college education. He invests some money at 5%, and $2300 less than that amount at 3%. The investments produced a total of $163 interest in one year. How much did he invest at each rate?
*Sunday, February 12, 2012 by Sarah*

**statistics**

A professor teaches two different subjects (history and sociology) in an ethnically diverse college. She wants to know how much interest students have in prominent political figures. She reasons that knowing this will help her plan for future lectures. She asked students to ...
*Sunday, February 12, 2012 by John*

**statistics**

Now, let’s look at a situation in which we compare three college math teachers to each other with respect to how interested they keep their students. The study was conducted among freshmen enrolled in an introductory course. The unit was quadratic equations. Students were...
*Sunday, February 12, 2012 by John*

**College Chemistry**

If the density of cylinder 1 is 3.55 , what is the density of cylinder 2? (The masses and volumes of two cylinders are measured. The mass of cylinder 1 is 1.35 times the mass of cylinder 2. The volume of cylinder 1 is 0.792 times the volume of cylinder 2.)
*Sunday, February 12, 2012 by Alex*

**college physics **

A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r. A passenger feels the seat of the car pushing upward on her with a force equal to twice her weight as she goes through the dip. If r = 19.0 m, how fast is the roller coaster ...
*Sunday, February 12, 2012 by Anonymous*