After plotting the data where x=area, and f(x)= √x-5 (+ 3) the length of one side of the square, Sam determined the model to approximate the side of a square was Use the model Sam created to predict the side length of the square when the area is 86.

A. 6

B. 12 <---

C. 81

D. 144

Edit: Just finished the test and got a 100. Answer is 12.

Its worth 10000000 points need asap if you answer correctly ill mark brainliest

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)

What is 0.000008 meters in scientific notation