Ball A is thrown upward from the top of a building and takes 12 s to hit the ground. Ball B is thrown downward with the same speed as Ball A and takes 7 s to hit the ground. How long does it take for ball A to reach it peak?
September 12, 2015
Math check please
1. Solve the system of equations y=2x^2-3 y=3x-1 a)no solution b)(-1/2,5),(2,-5/2) c)(-1/2,-5/2),(2,5)**** d)(1/2,5/2),(2,5) 2. How many real number solutions are there to the equation 0=-3x^2+x-4? a)0 ***** b)1 c)2 d)3 3.solve the equation by completing the square. if ...
March 19, 2015
First off there are two of us here trying to do this romeo and Juliet thing! In the same house so sorry you feel you have been speaking to one person and secondly I did give my answer to these questions twice in fact! But I am confused on what the correct response is seeing ...
March 13, 2015
8. What can readers infer from the following quote from Act V, Scene 3 of Romeo and Juliet? Romeo: O, be gone! By heaven, I love thee better than myself; For I come hither armd against myself: Stay not, be gone;--live, and hereafter say, A madmans mercy bid thee ...
March 13, 2015
Math help and check
Which kind of function best models the set of data points (1, 22), (0, 6), (1, 10), (2, 26), and (3, 42)? linear **** quadratic exponential none of the above 2. Which kind of function best models the set of data points (3, 18), (2, 6), (...
March 9, 2015
L.A. Check answers please
1. Which is the best paraphrase of these lines from "New World"? eagles / hie and / hover / above / the plain a)Eagles hurry and hang above the flatland. <---This one! b)Eagles hang in midair and wave their wings. c)Eagles race and rush in an ugly way. d)Eagles ...
February 19, 2015
The grades in the final exam of a random sample of 25 students produce a standard deviation, s = 9.5. a) Construct a 90% confidence interval estimate for the population variance, . b) Can we infer at 10% level of significance that the population variance is significantly ...
November 25, 2014
4. The Graduate Record Exam (GRE) has a combined verbal and quantitative mean of 1000 and a standard deviation of 200. Scores range from 200 to 1600 and are approximately normally distributed. For each of the following problems: (a) draw a rough sketch, darkening in the ...
November 22, 2014
A box manufacturer wants to produce an open box for which the volume is 2 cubic meters and the length is twice the width. What actual dimensions of he box will require the least amount of material? Work: V = 2m^3 2m^3 = (w)*(2w)*(h) Possible dimensions: length width height ...
September 14, 2014
PHI 208 Week 3 Reading Quiz
Milton Friedman observes that if the same argument that advocates of corporate social responsibility say should be brought to corporate shareholders is instead brought before union members, the logical bankruptcy of the argument would be clearly evident because: both A and B.
April 6, 2014
CHEMISTRY Homework Assignment
Hi I noticed someone else put this question up, but I am having a hard time with this one. I HAVE NO IDEA WHAT TO DO. What will be the products of the electrolysis of an aqueous solution of zirconium iodide (ZrI4)? (The electrodes themselves are platinum.)
May 10, 2013
A slide is attached to the side of a tree house. The height of the tree house is 6 less than double the distance from the baswe of the tree to the base of the slide. The length of the slide is 3 more than the height of the tree house. Find the length of the slide.
May 5, 2013
What is another way I could say "home"? I am trying to use the word to describe a place where someone feels comfortable and at ease and in place but the word home sounds awkward.
October 30, 2012
Polynomials and quadratic application
I want to make a rectangular garden by fencing in a area on the back of my house. Three sides of the rectangle will be fencing; the fourth side will be the side of the house. I have 60 feet of fence. What dimensions should I make the rectangle so that I have the largest ...
April 28, 2012
Okay so I need help with basically how to find the domain, range, and how to solve if it says Find the value of f(3). Let the f function be defined by f(x) = the square root of x + 1 for -1 is less than or equal to x less than or equal to 3. And 4 - x for 3 is less than x less...
March 18, 2012
Physical Science: PLEASE HELP!!!!!
A wooden raft 3 m long x 2 m wide x 20 cm thick floats on a freshwater lake. A) Determine the buoyant force? B) If the raft itself has a mass of 600 kg, how many 65-kg people could it support?
February 23, 2012
College Personal Finance
Annual interest of 6.0% paid if balance exceeds $900, $12 monthly fee if account falls below minimum balance, average monthly balance $1,135, account falls below $900 during 2 months. Round the answer to the nearest cent.
February 6, 2012
A group of six students all have different grades in statistics. The median mark in the group is 68. If two of the six students are selected at random, what is the probability that both have marks greater than 68?
November 7, 2011
Some people have proposed building a giant elevator from Earth's surface to geosynchronous orbit. The top of the elevator would then have the same orbital distance and period as any satellite in geosynchronous orbit. Suppose you were to let go of an object at the top of ...
October 7, 2011
On a distant planet, golf is just as popular as it is on earth. A golfer tees off and drives the ball 4.3 times as far as he would have on earth, given the same initial velocities on both planets. The ball is launched at a speed of 40 m/s at an angle of 46° above the ...
September 19, 2011
On a spacecraft two engines fire for a time of 560 s. One gives the craft an acceleration in the x direction of ax = 5.10 m/s2, while the other produces an acceleration in the y direction of ay = 7.30 m/s2. At the end of the firing period, the craft has velocity components of ...
September 19, 2011
Which sentence uses quotation marks correctly for a title?Select one of the options below as your answer:A. Cinderella is my niece's favorite movie of all time.B. I think I'm going to read "Moby Dick" when I finish reading my current book.C. I ...
August 30, 2011
Identify the sentence that uses correct punctuation.Select one of the options below as your answer:A. I am so sorry that you are not feeling well said Mrs. Smith.B. If we hurry, we wont miss the bus, urged Mom.C. Brian said Please dont...
August 30, 2011
Identify the sentence that uses a modifier in the correct form. Select one of the options below as your answer: A. My sister ran hurried down the walk to the bus stop. B. My sister ran hurriedly down the walk to the bus stop. C. We all hurried runningly down the walk to the ...
August 30, 2011
Okay so I'm doing doing significant figures in chem. And I was just wondering for problems like this: .000456 dm + .00524 m Do I have to actually convert stuff? And on the ones with exponents what do I do ? Ex: 3845.2 m cubed/ 25.2354 m
August 27, 2011
A sample of gas has increased in temperature from 20° Celsius to 22° Celsius. Which of the following happens as the temperature of the gas goes up? A.The gas undergoes a phase change. B. The velocity of the gas particles decreases. C.The kinetic energy of the particles...
July 29, 2011
Assuming all volume measurements are made at the same temperature and pressure, how many liters of oxygen gas would it take to react completely with 7.25 liters of hydrogen gas? Show all of the steps taken to solve this problem. Unbalanced equation: H2 (g) + O2 (g) yields H2 O(g)
July 14, 2011