Match each inequality with its solution set. n+4>11

n−4≤10

3n < 21

n2≥7

answers n<7 n>7 n≥14 n≤14

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.