Trapezoid abcd and wxyz are congruent trapezoids. what is the value of x?

a. x=5
b. x=-5
c. x=-15
d. x=15

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.

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

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"