Solve for the product of two and four fifths multiplied by four sixths. a one and twelve thirtieths
b one and nineteen thirtieths
c two and twenty four thirtieths
d two and ten thirtieths

What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)

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.

1. how do you convert the repeating, nonterminating decimal 0. to a fraction? explain the process as you solve the problem.