Answer:
A≈534.07
Step-by-step explanation:
A=2πrh+2πr^2
Your answer is in the picture.
-x+40=28
-x=-12 (subtract 40 from both sides)
Divide by -1(in both sides)because you cant have a negative age.
COLE is 12
To check plug in the values.
Answer:
2
Step-by-step explanation:
Given:
The interval, x = -2 to x = 0.
Required:
Average rate of change from x = -2 to x = 0.
SOLUTION:
From the graph,
If x = -2, f(-2) = 0.
If x = 0, f(0) = 4
Average rate of change = ![\frac{f(b) - f(a)}{b - a}](https://tex.z-dn.net/?f=%20%5Cfrac%7Bf%28b%29%20-%20f%28a%29%7D%7Bb%20-%20a%7D%20)
Where,
![a = -2, f(a) = 0](https://tex.z-dn.net/?f=%20a%20%3D%20-2%2C%20f%28a%29%20%3D%200%20)
![b = 0, f(b) = 4](https://tex.z-dn.net/?f=%20b%20%3D%200%2C%20f%28b%29%20%3D%204%20)
Plug in the values into the formula:
![= \frac{4 - 0}{0 -(-2)}](https://tex.z-dn.net/?f=%20%3D%20%5Cfrac%7B4%20-%200%7D%7B0%20-%28-2%29%7D%20)
![= \frac{4}{2} = 2](https://tex.z-dn.net/?f=%20%3D%20%5Cfrac%7B4%7D%7B2%7D%20%3D%202%20)
Average rate of change from x = -2 to x = 0 is 2.