Atriangular playground has angles with measures in the ratio 8 : 6 : 4. what is the measure of the smallest angle?

The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?

The parabola opens: y=√x-4 (principal square root) up down right left

To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers