The sum of 4 and 11x is equal to 37.
By constructing an equation, find the value of x.

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?

Find the slope of a line given the following two points

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)