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The equation  \(y = -16t^2 + 26t + 105\)describes the height (in feet) of a ball tossed up in the air at 26 feet per second from a height of 105 feet above the ground. In how many seconds will the ball hit the ground? Express your answer as a decimal rounded to the nearest tenth.

 Jun 21, 2021
 #1
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The ground is at height y = 0, so set y to zero and solve the resulting equation for t using the quadratic formula.  You will get two answers, but only the positive value is meaningful here.

 Jun 21, 2021
 #2
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Thank you so much 😊

Guest Jun 21, 2021

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