Determine What Signs on Values of X and Y Would $\mathrm { H } = 60 - 4.9 \mathrm { x } ^ { 2 }$

question 185

Multiple Choice

Determine what signs on values of x and y would make the statement true. Assume that x and y are not 0.
-If a rock falls from a height of 60 meters above the ground, the height H (in meters) after x seconds can be approximated using the formula $\mathrm { H } = 60 - 4.9 \mathrm { x } ^ { 2 }$ . What is the height of the rock after 3
Seconds?

• A) -156.09 m
• B) 495.9 m
• C) 15.9 m
• D) 45.3 m

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