3x^2 + 21x
Is the answer without a doubt.
The answer would be 1/4 pounds((One and one quarter pounds)) I hope this helps :3
Answer:
C
Step-by-step explanation:
Let
and
. By the product rule,

By the power rule, we have
and
, but
are functions of
, so we also need to apply the chain rule:


and we have


So we end up with

Replace
to get everything in terms of
:

We can simplify this by factoring:

