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A helicopter’s altitude is changing at a rate of -17 feet per second. Find the change in the helicopter's altitude after 4 seconds.

A) -68 feet
B) -42 feet
C) -17 feet
D) 68 feet

Answer :

Final answer:

The helicopter's altitude decreases by -68 feet after 4 seconds, as it descends at a rate of -17 feet per second.

Explanation:

To find the change in the helicopter's altitude after 4 seconds, we use the rate of altitude change and multiply it by the time. The rate of altitude change is -17 feet per second, indicating the helicopter is descending.

Step-by-step explanation:

  1. Determine the rate of change: -17 feet per second.
  2. Multiply the rate of change by the time (4 seconds): -17 ft/s * 4 s = -68 feet.
  3. The negative sign indicates a decrease in altitude.

The altitude of the helicopter after 4 seconds has decreased by -68 feet. Therefore, the correct answer is A) -68 feet.

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