one circular table has a diameter of 9 ft and another table has a diameter of 14 ft. how much greter is the area of the larger tble

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

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.