Math
posted by Nancy .
Jimmy jumped into a lake from a 12foothigh cliff with an initial upward velocity of 7 feet per second. Find the time in seconds it took Jimmy to enter the water. Use the model for vertical motion given by the equation h = 16 t squared + vt + s

Math 
Steve
just solve for when the height is zero:
16t^2 + 7t + 12 = 0
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