Answer: 147 cm²
Step-by-step explanation:
Since it says to use 3 for pi, and the radius is given to us (7 cm), we will plug in and solve for the area.
A = πr²
A = (3)(7)²
A = 147 cm²
.8 percent of 200 is 1600 becaus 2000* .8=1600
Answer:
57 units²
Step-by-step explanation:
Let the radius be r
r² + r² = 10²
2r² = 100
r² = 50
r = 5sqrt(2)
Shaded area:
Circle - Square
pi×r² - 10²
pi(50) - 100
50pi - 100
50(3.14) - 100
57
Answer: D. Positive and negative correlation
Step-by-step explanation: