Answer: 
Step-by-step explanation:
The area of a square is 
Substituting d for x, you get 1/2x^2
Hope this helps <3
Answer:
D
Step-by-step explanation:
diameter of 1 circle = 21.3/3= 7.1
radius of 1 circle= 7.1/3=3.55
area of 1 circle =πr^2=3.14× (3.55)^2=39.57
area of 3 circle= 39.57×3=118.72
therefore,area of shaded portion= area of 3 circle =118.72
D.
you do change in y divided by change in x
(5-1)/(1-0) = (4)/1=4
Answer:
a = 6/5
b = 0.111 . . .
c = 166 2/3%
Step-by-step explanation:
just did it