lovedebrap11ih4
29.10.2020 •
Mathematics
Charlize wants to measure the depth of am empty well. She uses a stopwatch starting when she lets go of the ball and ending when she hears the ball hit the bottom of the well. The polynomial h=- 16t^2 + 6 represents how far the ball has fallen after t seconds.
How far has the ball fallen after one second?
Charlize's stopwatch measured a time of 3.2 seconds when the ball hit the bottom of the well. How deep is the well?
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Ответ:
D. square the binomial, distribute 7 inside the parentheses, and then combine like terms
I just took the test on edge, this is correct :)