Hello!
To find the area of a circle you do
the "r" stands for radius which is half the diameter
So we do
Which gives us the answer of 314.16
Hope this helps!
Answer:
When 324 belts have been produced, the average cost is changing at -28 dollars for each additional belt.
Step-by-step explanation:
The cost of producing x belts is given by:
Find the rate at which average cost is changing when 324 belts have been produced.
This is 
. So
So the correct answer is:
When 324 belts have been produced, the average cost is changing at -28 dollars for each additional belt.
(X-3)(X+1)=0
X-3=0
X=3
X+1=0
X=-1
Answer:
Step-by-step explanation:
1800×6.5%×30=b
b-1800=a
a) $1,710
b) $3,510
