Consider the following simplified algebraic expression. 10x+y+6x2 - 7y2 - 6
Which could be the original expression?
8x+y+7x2 - 5y2 + 3x-2+2x+y – x2 – 2y2 + 3x-4
8x+y+7x2 - 5y + 3x-2+2x+y= x2 – 2y2 - 3x-4
8x+y+ 7x2 - 5y? +3x+2+2x²y= x2 – 2y2 – 3x-4
8x+y+7X2 - 5y2 + 3x-2– 2x²y = x2 – 2y2 – 3x-4

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

Ariel is working at a meat packing plant for 5 nights a week. her regular wage is $11 an hour. she earns tine and a half for any overtime hours. this week she worked 9 hours of over time .how much will ariel earn for overtime this week ?

Abcd is a square. what is the measure of angle bac