Benjamin writes an expression for the sum of 1 cubed, 2cubed, and 3 cubed what is the value of this expression

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 can you determine about the solutions of this system

Triangle knm is what is true about the sides of knm