A furniture company makes a variety of wooden bookcases. The height of each shelf space is 13 inches. The top and bottom are each 2 inches thick and the pieces separating the shelf spaces are each ¾ -inch thick. Write an equation that models the total height h of a bookcase that contains n shelf spaces. i ned model xd

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.