Helen spenders 12% of her budget on transportation expenses. write this percent as a fraction and as a decimal if her total budget was 1,150 how much did he spend on transportation expenses

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.

An object in geometry with no width, length or height is a(n):

Fast! find the length of cu. the triangles are similar. show your work.