-48a²/-8a
reduse the equation to its smallest form​

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have

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.

Arectangle has a length of 6cm by 8cm what is the length of a diagonal of the rectangle