Andre and Mai are discussing how to solve for side AB. Andre thinks he can use the equation tan(12 degrees)=x/6 to solve for AB. Mai thinks she can use the equation tan(78 degrees)=6/x to solve for AB. Do you agree with either of them? Show or explain your reasoning.

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.

Which of the following represents the length of a diagonal of this trapezoid?

The table showed price paid per concert ticket on a popular online auction site. what was the average price paid per ticket