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Isabel☺Best ResponseYou've already chosen the best response.0
suppose it is a parabola: dw:1359970089368:dw
 one year ago

CallistoBest ResponseYou've already chosen the best response.1
What is the question?
 one year ago

Isabel☺Best ResponseYou've already chosen the best response.0
solve the problem using Disk Method of Solution. Solid V is generated by revolving the given below region R about the xaxis. Draw R and make a sketch of V: R is bounded by y=0 & y= 4  x^2 .
 one year ago

Isabel☺Best ResponseYou've already chosen the best response.0
solve for volume dw:1359970762069:dw @Callisto
 one year ago

CallistoBest ResponseYou've already chosen the best response.1
Disk method: dw:1359988516003:dw \[V = \pi \int_a^b r^2 dx = \pi \int_a^by^2dx\] To find a and b, solve the equations y=0 & y= 4  x^2. (The x values you get will be the value of a and b) \[y=4x^2\] Can you do it now?
 one year ago

Isabel☺Best ResponseYou've already chosen the best response.0
can it be like: dw:1359971017830:dw
 one year ago

CallistoBest ResponseYou've already chosen the best response.1
No.... Solve y=0 and y= 4x^2 => y = 0 = 4x^2 So, now, you need to solve 4x^2 =0 to find a and b.
 one year ago

Isabel☺Best ResponseYou've already chosen the best response.0
oh yea right im confused wait...
 one year ago

CallistoBest ResponseYou've already chosen the best response.1
^That no was for your first question. You can draw r there.. It doesn't matter where you put the r... since the value of r will be represented by the function y.
 one year ago

CallistoBest ResponseYou've already chosen the best response.1
Can you solve a quadratic question?
 one year ago

CallistoBest ResponseYou've already chosen the best response.1
Yes. So, the integral is \[V = \pi \int_{2}^{2} y^2 dx=\pi \int_{2}^{2} (4x^2)^2 dx\]Can you do it?
 one year ago

Isabel☺Best ResponseYou've already chosen the best response.0
oh i forgot to square...
 one year ago

CallistoBest ResponseYou've already chosen the best response.1
You're welcome :) Hope that you know how to do it now!
 one year ago

Isabel☺Best ResponseYou've already chosen the best response.0
hopefully yes :) thanks again :)
 one year ago
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