I'm guessing the second derivative is for <em>y</em> with respect to <em>x</em>, i.e.
Compute the first derivative. By the chain rule,
We have
and so
Now compute the second derivative. Notice that is a function of ; so denote it by . Then
By the chain rule,
We have
and so the second derivative is
Answer:
The horizontal cross-sections of the pyramid and cone at the same height must have the same area. The correct answer is D.
Answer:
Step-by-step explanation:
1. 6f+45+15=180
6f=180-45-15
6f=130
f=130/6=65/6=21.66666666666666....
2. d=6f=130/6=65/6=21.66666666666666....
(They are vertical angles, opposite angles)
Whatever decimals you choose, b HAS to be greater than a. It can't be the other way around where a is greater. So a possible answer could be, b=0.9 and a=0.3