Solve.If a rock falls from a height of 80 meters above the ground, the height H (in meters) after x seconds can be approximated using the formula H = 80 - 4.9x2. What is the height of the rock after 3 seconds?
A. 65.3 m
B. -136.09 m
C. 675.9 m
D. 35.9 m
Answer: D
Mathematics
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