Answer:

Step-by-step explanation:
Given
The attached circle
Required
Find the measure of x
From the attached image:
and
form a semi-circle
So:

Collect like terms


Solve for x


Answer: c(x)=-2 x2 + 16x + 168
Step-by-step explanation: I hope this helps if im wrong im srry!
Change 1/4 to a decimal is an exponent by 4 and the answer would be 0.0039
Answer: 0.04 per pound
Step-by-step explanation:
A 5 pound bag of apples costs 4.50.
The unit price will be 4.50 divided by 5 which will be:
4.50 ÷ 5 = 0.9
The unit price is 0.9 per pound
A 8 pound bag of the same type of apples costs 7.52.
The unit price will be 7.52 divided by 8 which will give:
7.52 ÷ 8 = 0.94
The unit price is 0.94 per pound
The difference in the unit prices will be the subtraction of 0.90 from 0.94.
0.94 - 0.90 = 0.04
The difference in the unit prices is 0.04 per pound.