SOLUTION: The distance traveled by an object moving in a straight line is given by s = t2 - 8t, where s is in feet and t is the time in seconds the object has been in motion. How long (to t
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Question 298733: The distance traveled by an object moving in a straight line is given by s = t2 - 8t, where s is in feet and t is the time in seconds the object has been in motion. How long (to the nearest tenth) will it take the object to move 9 feet?
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
The distance traveled by an object moving in a straight line is given by s = t2 - 8t, where s is in feet and t is the time in seconds the object has been in motion. How long (to the nearest tenth) will it take the object to move 9 feet?
.
The problem gives you the formula:
Simply substitute s for 9 and solve for t:
Factoring the right side:
t = {-1, 9}
We can toss out the negative solution leaving:
t = 9.0 secs
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