A sample of 100 independent random numbers is taken from this distribution, and its average is used to estimate the mean of the distribution. What isthe standard error of this estimate?

1. what is the measure of ∠abc? what is the measure of ∠abd?

Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8  feet of ribbon. he cut off one piece that was 3 5/8  feet long and another piece that was 1 1/4  feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.

Solve the following inequalities and show the solution on a number line. 3/4 (2x-7) ≤ 5