Question

scientists use positive and negative numbers to describe the speed and direction of the space capsule. a positive number means it is moving up toward space. a negative number means it is falling back to earth. a few seconds after liftoff, the space capsule is moving up at a speed of 80 miles per hour. which number describes the speed and direction of the space capsule? -80 80

Explanation:

Step1: Identify the given condition

A positive number means moving up.

Step2: Determine the sign of the number

The capsule is moving up at 80 miles per hour.

Answer:

80