Which additional fact would prove that quadrilateral WXYZ is a parallelogram? A. XY = YZ
B. m∠X + m∠Y = 180°
C. YZ = WX
D. m∠Y ≅ m∠W

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.

What is the value of x in the following equation. -x ^3/2 = -27