Determine the length of CD. Question 13 options:

A)

10.77 units

B)

3.74 units

C)

6.32 units

D)

9.17 units

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.

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

If a is a nonzero real number then the reciprocal of a is