What is the product written in scientific notation? (1.18×103)⋅(9.1×10−6)(1.18×103)·(9. 1×10−6) 1.0738×10−21.0738×10−2 1.0738×10−41.0738×10−4 10.738×10−310.738×10−3 10.738×10−2

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)