Which expression has the same value as –y–4? –y4 Negative StartFraction 1 Over y Superscript 4 Baseline EndFraction StartFraction 1 Over y Superscript 4 Baseline EndFraction y4

An astronaut drops a rock into a crater on the moon. the distance, d(t), in meters, the rock travels after t seconds can be modeled by the function d(t)0.82. what is the average speed, in meters per second, of the rock between 5 and 10 seconds after it was dropped?

A50% increase followed by 33 1/2% decrease

Rounded to the nearest tenth, what is the value of x