What facts about angles can you use to find the unknown angle measures?

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

Problem fathi wants to print out a pdf document that is 48 pages long. to save paper, he decides to print on both sides of each sheet and to print two pages on each side of the sheet. how many sheets of paper will he need?

Calculate the density of benzene if 300ml of it weighs 263g. a. 0.88 g/ml b. 1.14 g/ml c. 78,900 g/ml d. 37 g/ml