Answer:
Average rate of change = ![\frac{2}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B5%7D)
Step-by-step explanation:
Average rate of change of a function 'f' in the interval a ≤ x ≤ b is given by,
Average rate of change = ![\frac{f(b)-f(a)}{b-a}](https://tex.z-dn.net/?f=%5Cfrac%7Bf%28b%29-f%28a%29%7D%7Bb-a%7D)
We have to find the average rate of change in the interval 20 ≤ x ≤ 65
From the table attached,
f(65) = 32
f(20) = 14
Average rate of change = ![\frac{32-14}{65-20}](https://tex.z-dn.net/?f=%5Cfrac%7B32-14%7D%7B65-20%7D)
= ![\frac{18}{45}](https://tex.z-dn.net/?f=%5Cfrac%7B18%7D%7B45%7D)
= ![\frac{2}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B5%7D)
Therefore, average rate of change in the given interval is
.
It goes on forever basically, as it can't be expressed as a fraction.
Answer:
Step-by-step explanation:
-3b - 3b= (-3b)+(-3b)= -6b
Answer:
x= 8
Step-by-step explanation:
17x + 3 = 139
17x = 136
x = 8