The length of a rectangle is 4 centimeters longer than the width. the perimeter of the rectangle is 72 centimeters. find the length and the width of the rectangle.

Factor x2 – 8x + 15. which pair of numbers has a product of ac and a sum of what is the factored form of the

It says factor each expression completely 8y+48

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.