a baseball is dropped from a stadium seat that is 75 feet off the ground. Its height s in feet after t seconds is given by s(t)=75-22t^2. Estimate to the nearest tenth of a second how long it takes for the baseball to strike the ground.
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OpenStudy (anonymous):
Do you understand calculus?
OpenStudy (anonymous):
lol no that's why im asking
OpenStudy (anonymous):
Is this for a calculus class or precalc? Have you been introduced to derivatives, etc?
OpenStudy (anonymous):
precalc and i dont remember how to do derivatives
OpenStudy (anonymous):
If it's precalc, you probably don't know what derivatives are. So in this case for the function
s(t)=75-22t^2, solve for t.
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OpenStudy (anonymous):
Would you know how to do that?
OpenStudy (anonymous):
Just set it equal to 0
So 75-22t^2=0
OpenStudy (anonymous):
ok so i found t is that the answer?
OpenStudy (anonymous):
Yes, but only the positive value is your answer. What did you get?
OpenStudy (anonymous):
1.85
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