Chegg Solution In a neighborhood donut shop, one type of donut has 580 calories, seven types of donuts have 530 calories, five types of donuts have 390 calories, six types of donuts have 520 calories, and two types of donuts have 400 calories. Find the range.

The figure below shows rectangle abcd and the triangle eca on a coordinate plane.which of the following expressions represents the perimeter of triangle of triangle eca in units

What are the exclude value of mn+3m

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.