Estimate the difference between 156 and 31 by first rounding each number to the nearest ten.

190
180
120
130

Factor x2 – 8x + 15. which pair of numbers has a product of ac and a sum of what is the factored form of the

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.