Friday

December 19, 2014

December 19, 2014

Total # Posts: 132

**math**

Use the method of differences to prove the following formulas 1) ∑_(r=1)^n▒〖r=(n(n+1))/2〗 2) ∑_(r=1)^n▒〖r^2=(n(n+1)(2n+1))/6〗
*November 11, 2010*

**more physics..**

find the kinetic energy of an airplane traveling at a speed of 648 km/h if the mass of the airplane is 5,000 kg.
*June 8, 2010*

**Physics**

a runner moving at a speed of 5.60 m/s rounds a curved track with a 60.0 m radius. what is the runners acceleration?
*June 8, 2010*

**physics**

the force exerted on a rope pulling a wagon is 49 N. the rope is 35 degrees above the horizontal. find the force that pulls the wagon over the ground.
*June 8, 2010*

**Calculus**

How do you find the derivative of: y= 2sinx cosx
*April 6, 2010*

**math**

A contractor is considering a sale that promises a profit of $ 26,000 with a probability of .7 or a loss (due to bad weather, strikes, and such) of $ 4000 with a probability of .3. What is the expected profit. Can someone help me with this.
*April 4, 2010*

**physics**

You raise a bucket of water from the bottom of a deep well. If your power output is 101 W, and the mass of the bucket and the water in it is 3.00 kg, with what speed can you raise the bucket? Ignore the weight of the rope.
*March 30, 2010*

**Calculus**

Find constants a,b, and c such that the function f(x)=ax^3+bx^2+c will have a local extremum at (2,11)and a point of inflection at (1,5). Sketch the graph of y=f(x). How would I solve this. Thank you.
*March 28, 2010*

**Accounting**

Explain the components of cost-volume-profit analysis . What does each of the components mean?
*March 13, 2010*

**Biology**

Hi there, Could you help me come up with four arguments as to why xenotransplantation should not receive all the funding that stem cell research now receives. Sabrina
*March 11, 2010*

**programming**

A small startup software developer company needs to create a program that will calculate the pay of its employees. For the first version of the program, the company wants the program to accept an employee’s name, the number of hours the employee worked, and the hourly pay...
*March 6, 2010*

**Accounting**

Write a 200- to 300-word response to the following: You have been hired into a new company to oversee the accounting department. What type of financial reports would you expect to see in your department? How will you use the financial reports available to you to make business ...
*March 5, 2010*

**How many 8cm 3 in a Volume of 48cm3**

How many 8cm3 in a box with a volume of 48cm3
*March 1, 2010*

**World History**

how does John Locke's ideas reflect the feelings of the enlightenment
*February 18, 2010*

**math**

Two minor league baseball players got a total of 252 hits in the season . Washington had 16 more than Sanchez find the number of hits for each player
*November 17, 2009*

**math**

At work one day Erica received 55 packages. Speedy Delivery delivered 4 times as many as Ralph Express delivered while Ralph delivered 5 times more than Send Quick So how many packaged did each service send
*November 17, 2009*

**criminology**

A local radio station has asked you to participate in an expert panel discussion regarding the role of media in political and terrorism related crimes. Specifically, you have been invited to speak on how the media and modern means of sharing information quickly can help ...
*October 29, 2009*

**Criminology**

Why is it that in families where sexual abuse occurs, are some children abused, while others are spared?
*October 18, 2009*

**Criminology**

How do the psychological and sociological explanations of crime explain the actions of a serial rapist? I have searched for information regarding these theories of criminal behavior, but I am comming up short. Please help
*October 10, 2009*

**mat115**

A rectangular picture window is 6 ft by 4 ft. Polly wants to put a trim molding around the window. How many feet of molding should she buy?
*June 20, 2009*

**social studies**

Why did Hawaiians and Asians living on the Hawaiian islands oppose annexation to the United States?
*March 10, 2009*

**Parie**

um i need help with grids and decimals which decimal is greater 0.3 or 0.09
*February 11, 2009*

**english**

ms sue please. i dont understand any of it. its like my brain is gonna explod wit all this stress. so please give me one of your old summer eassy?? and its due tomoro:(
*January 21, 2009*

**english**

please mind my spelling errors im a newbie on the keyboard.. i meant I dont wanna be a rotten egg!
*January 21, 2009*

**english**

hey people!! im new here and i just got an essay to do on english altough its the first day of school!! please guys i really need your help.. its a essay on the following topics: 1-summer 2-love is not all it's made out to be 3-a glorious sunset 4-stories like ours have ...
*January 21, 2009*

**History**

Does anyone have any good, dependable (ie not Wikipedia) web sites about the social classes in Classical Greece? Thanks
*November 11, 2008*

**Algebra**

Instructions say "factor completely," so I would pick "D."
*May 27, 2008*

**English**

Why and how could you apply critical thinking when evaluating each of the following: 1) articles 2) Media 3) Advertising 4) conversations. Please help, I'm lost for words to use.
*April 27, 2008*

**Epidemiology**

yes
*April 6, 2008*

**Math**

What is the Answer to this problem; A U A'
*February 3, 2008*

**science**

does a metal mass change when it's heated
*October 27, 2007*

**math and slopes**

Help. Determine the slope of the line. The line whose equation is 3x-2y=8 Solve for y by putting y on one side and everything else on the other. -2y=8-3x. Multiply by -1. 2y = 3x -8 and divide by 2 y=(3/2)x -8/2 or y= (3/2)x -4 The form for a straight line is y = mx + b where ...
*April 18, 2007*