A fence is to be built to enclose a rectangular area of 310 square feet. The fence along three sides is to be made of material that costs 3 dollars per foot, and the material for the fourth side costs 14 dollars per foot. Find the dimensions of the enclosure that is most ...
December 11, 2014
suppose 125g of ethanol at 25C is mixed with 255g of ethanol at 84C at constant atmospheric pressure in a thermally insulated vessel. What is the Ssys for the process. The specific heat capacity for ethanol is 2.42 J/g K. Answer in units of J/K
October 11, 2014
two parallel plates are separated by a dielectric of thickness 2mm and a dielectric of constant 6.if the area of each plate is 40cm2 and p.d between them is 1.5kv,find the capacitance,the energy stored by the capacitor and the ratio of the capacitance if the dielectric is ...
October 10, 2014
Community technical college
Given that 1st term of an A.P is 7 and it's 10th term is twice the second term,calculate the (a) 19th term (b)sum of 28 terms (c) difference between 9th and 6th terms
February 3, 2013
i have to proof that segment ad is congruent to segment ce. my givens are that segment ab is congruent to cb, that fd bisects ab and that fe bisects cb. the shape is a triangle
September 26, 2012
university of phoenix
if someone scored two standard deviations above the mean on a standard test where the mean =100 and the standard deviation = 15, what is the person's numerical score?
July 13, 2012
I was wondering what you all may think about video games and their effects on children playing them? Are the children becoming more violent? What do these games do t a child's psyche?
November 9, 2011
The value of a new car purchased for $28,000 decreases 8% per year. Write an exponential decay model for the value of the car. Use the model to estimate the value after 5 years.
April 30, 2011
The Age of Jackson is often seen as a turning point in American politics, one where we turn from a politics where few could vote or hold office to one where many could. Define Jacksonian Democracy and show how it changed the political system from what came before. Do the major...
March 7, 2011
Really bad interpreter
I think it means that the american people like doing things in a very simple manner and dont like to make such a big deal over anything to avoid confusion or problems. They rather be straight forward with one another than lying and tricking people in order to get what they ...
March 7, 2011
There is a table of values for the function f. They read: x=3, f(x)=4 x=4 f(x)=5 x=5 f(x)=6 x=6 f(x)=3 x=7 f(x)=5 x=8 f(x)=7 What is the value of 2f(5)-f(4)? I did this wrong obviously, but what I did was figure out the function of five from the table (4), and multiplied that ...
November 25, 2010
In North American, female adult heights are approximately normal with a mean of 65 inches and a standard deviation of 3.5 inches. a.) If one female is selected at Random, what is the probablility that shes has a height 70 inches or higher? b.) The heights of 50 females were ...
November 14, 2010
Vector A has a magnitude of 8.00 units and makes an angle of 45.0° with the positive x-axis. Vector B also has a magnitude of 8.00 units and is directed along the negative x-axis. Using graphical methods, find (a) the vector sum A + B and (b) the vector difference A ...
August 28, 2009
What is the maximum height reached by the ball? If a baseball is projected upward from ground level with an initial velocity of 64 feet per second, then its height is a function of time, given by s= -16t^2 + 64t
April 2, 2009
I like the poster idea, but the problem is that I don't have access to any of those resources. I'm away from home so I don't have access to pictures or poster boards.
October 5, 2008
Hello, I need to come up with a very creative way to express who I am to a certain group of people. Unfortunately, I'm not very good at art, so I would have to come up with a new way. Are there any ideas you might have? Thank you very much for your help.
October 5, 2008