Number of results: 29,521
The profit (in millions of dollars) from the sale of x million units of Blue Glue is given by p= .7x-25.5. The cost is given by c= .9x +25.5 (a) Find the revenue equation. (b) What is the revenue from selling 10 million units? (c)What is the break-even point...
Monday, July 4, 2005 at 9:51am by GetYourLeash
Hello. I would appreciate it if someone could check my answers. I'm sorry it is so long. 1.) Let R denote the region between the curves y=x^-1 and y=x^-2 over the interval 1<= x <= 10. a. Set up an integral for the area of R. My answer: 1.403 b. Find x-bar, the x ...
Saturday, September 3, 2005 at 12:32pm by Shay
Find two numbers such that the sum of the first plus three times the second is 600 and their product is a maximum. x + 3y=600 xy is a max. This is the problem statement. let U be the function equal to xy. U=xy = y(600-3y) Now, maximize U (take derivative, set to zero), and ...
Saturday, September 30, 2006 at 10:19am by Tezuka
If 6 J of work is needed to stretch a spring from 10cm to 12 cm and another 10 J is needed to stretch it from 12 cm to 14cm, what is the natural length of the spring? This is a physics problem as much as a calculus one. Solve for the spring constant k first, then determine ...
Tuesday, October 10, 2006 at 1:33pm by Shayn
Math help please *calculus*
ok im having a bit of a problem rationalizing denominators. i have 2 to the root of 3 +4 divided by the root of 3. I have tried multiplying the top and bottom by the root of 3 and the answer, but then i get stuck at this part. Do i multiply 4 by 4 and make it a root? or am i ...
Sunday, October 15, 2006 at 4:47pm by linda
Math / Calculus
Hello, I was wondering if someone could help me. My calculus skills are many years rusty, however I think I have an interesting practical application of calculus in a video game. I think this could be a good real-world example on what math can solve. Could anyone help me solve...
Thursday, June 21, 2007 at 11:20am by Mike
the part that is cut out,what you call a "cylinder" is not really at cylinder. you are forgetting about the caps on each end of your 'cylinder' we will have to use Calculus to do that Visualize a circle, centre at the origin and radius of 12,rotating about the x-axis resulting...
Monday, April 27, 2009 at 4:24pm by Reiny
Pre Calculus why is sin(-20)/cos 380 equal to tan (-200)
Sunday, November 15, 2009 at 10:07pm by Pre Calculus
These are very "nasty" equations, since there is no simple-level method of solving these. I reduced it to (1+r)^10 = 26.02359r If you know Calculus, you can use Newton's Method, otherwise, try something like this It looks like your equation could have come from the amount of ...
Tuesday, September 28, 2010 at 7:00pm by Reiny
Calculus / a bit of physics
explain why a scalar equation of the line exists in 2-D space, but not in 3-D space.
Thursday, May 17, 2012 at 9:19am by j
a) when it hits the ground, f(t) = 0 0 = -16t^2 + 67t 16t^2 - 67t = 0 t(16t - 67) = 0 t = 0 or t = 67/16 = appr 4.19 seconds t=0 would be the start of the toss so the answer you want is t = 4.19 sec b) since you labeled it "pre-calculus" I assume you cannot at this point take ...
Thursday, January 31, 2013 at 9:02pm by Reiny
I know how to solve it to get .21, but I need to write it using positive exponents only. I know this isn't technically Calculus, but it is what we are reviewing currently. I am a bit rusty with this one, can't quite remember how to do it. I am trying some different things, but...
Thursday, March 21, 2013 at 1:33am by Jacob
calculus (gr 12)
looks like a bit of homework-dumping to me. I will do one of them. f) f(x) = x^5 + x^4 - x^3 f ' (x) = 5x^4 + 4x^3 - 3x^2 f '' (x) = 20x^3 + 12x^2 - 6x then f '' (4) = 20(64) + 12(16) - 6(4) = 1448 They are all of a very eliminatory type , which you just have to know to start ...
Tuesday, April 16, 2013 at 9:55pm by Reiny