a 65 foot ladder is leaning against a wall. it’s lower end is 25 feet away from the wall. How much farther away will it be if the upper end is moved down 8 feet

The household makes $424.45

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.