ANSWER FAST PLS 15 PTS!! The radius of this PAC-Man is 12in long.
Part 1: Find the area of the PAC-Man, which is a three-fourths circle. You may use 3 or 3.14 as pi.
Part 2: If a student would like to make a metal sign of this PAC-Man, how much would it cost to buy the metal for the sign if every square inch costs $1.75?

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.