There are 318 fiction books in the class library. the number of nonfiction books is 47 less than double the number of fiction books. about how many nonfiction books are in the class library

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π

Calculate the average rate of change over the interval [1, 3] for the following function. f(x)=4(5)^x a. -260 b. 260 c. 240 d. -240