Answer:
There is no picture
Step-by-step explanation:
Answer: since I don’t understand this question I’m choosing D
Step-by-step explanation:
You plug 7 in for x
Therefore, f(7)=7-2=5
So f(7)=5
Answer:
The rate of change of the area of the circle is approximately
.
Step-by-step explanation:
Given:

radius 
We need to find the rate of change of the area of the circle at that instant.
Solution:
Now we know that;
Area of the circle is given by π times square of the radius.
framing in equation form we get;

to find the rate of change of the area of the circle at that instant we need to take the derivative on both side.

Substituting the given values we get;

Hence The rate of change of the area of the circle is approximately
.
the answer is on the picture with solving