let's find the area of the outer circle and the inside circle
the inside's circle area
A= π x 6²=36π
the outer's
A' = π x 4x²= 4πx²
A'-A=4πx²- 36π=160πcm² equivalent to x²- 9=40, so x²=49 implies x =sqrt(49)=7, x=7.
Answer:
a
d
A
c
c
Step-by-step explanation:
In a dot plot, each one of the dots represents a value in the data set. When there are multiple values at a particular number, the dots just get stacked on top of each other. Using the dots in the plot, you can find the mean, median, mode or any other statistic that you need to summarize the data.
Answer:
d) 
Step-by-step explanation:
<u><em>Explanation</em></u>
Given expression
=
By using
(ab)ⁿ = aⁿbⁿ
= 
After simplification , we get
