Chess experts believe that the first 4 moves (in sequence ) can take place 197,299 different ways ( when totaled). it takes a half of a minute to make a single move how long do you think it would take a player to try every possible set of 4 moves?

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)