Answer:
21.5 mm^2
Step-by-step explanation:
First find the area of the square
A = s^2 = 10^2 =100
Then find the area of the circle
d = 10 so r = d/2 = 10/2 =5
A = pi r^2
A = 3.14 (5)^2 =78.5
The difference is the shaded region
100-78.5 =21.5
One is 17.22 and the other is simply 2.
First one because when you subtract 7 u keep the var. x alone and isolate it.
If I said I had .25 cents you would know I had a quarter of a dollar or 1/4th of a dollar, .25 cents could also be thought of as 25% of a dollar.
so in this case if the "dollar" is x and the "quarter" is .88 you could say you have 88% of x
