Answer:
![\frac{1}{x^2}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7Bx%5E2%7D)
Step-by-step explanation:
Differentiate using the power rule
(a
) = na![x^{n-1}](https://tex.z-dn.net/?f=x%5E%7Bn-1%7D)
Given
f(x) = -
= -
, then
f'(x) = - 1 × - 1 ×
=
= ![\frac{1}{x^2}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7Bx%5E2%7D)
81.1 because if you round, 81.139 = 81.4 = 81.1
V = 78.4
Explaination: because that’s the answer.
Answer:
123.8
Step-by-step explanation:
nearest tenth is 7 and the sixes aftr it are over half of a full decimal, so they round to 123.8