   Chapter 9.4, Problem 36ES Mathematical Excursions (MindTap C...

4th Edition
Richard N. Aufmann + 3 others
ISBN: 9781305965584

Solutions

Chapter
Section Mathematical Excursions (MindTap C...

4th Edition
Richard N. Aufmann + 3 others
ISBN: 9781305965584
Textbook Problem

In Exercises 27 to 42, round answers to nearest hundredth where appropriate.Softball In a slow pitch softball game, the height of a ball thrown by a pitcher can be approximated by the equation h = − 16 t 2 + 24 t + 4 , where h is the height, in feet, of the ball and t is the time, in seconds, since it was released by the pitcher. If a batter hits the ball when it is 2 ft off the ground, for how many seconds has the ball been in the air?

To determine

To find the seconds that the ball has been in the air.

Explanation

Given:

h=16t2+24t+4

Height = 2ft

Calculation:

h=16t2+24t+42=16t2+24t+416t224t4+2=016t224t2=0Divide by 28t212t1=0t=b± b 2 4ac2a

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