Five students each wrote down a number between 40 and 50. List shows the number they wrote which student wrote down a prime number?

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

If two lines form congruent alternate interior angles with a transversal, then the lines

An isosceles trapezoid was broken into a rectangle and two triangles. what are the base and height of one of the triangles?