Solve x^2+10x+7=0 by completing the square.

which equation is used in the process?

1. (x+10)^2=93
2. (x+5)^2=32
3. (x+5)^2=18

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)