If an average-sized man with a parachute jumps from an airplane, he will fall 12.5(0.2 1) 19t feet in t seconds. How long will it take him to fall 126 feet? (Round your answer to two decimal places.)XsecNeed Help?Read ItWatch ItTalk: os TutorSubmit AnswerPractice Another VersionType here to searchWhp4S*ByoS4$*3Cn27UREWwe7NB

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Asked Sep 16, 2019
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If an average-sized man with a parachute jumps from an airplane, he will fall 12.5(0.2 1) 19t feet in t seconds. How long will it take him to fall 126 feet? (Round your answer to two decimal places.)
Xsec
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If an average-sized man with a parachute jumps from an airplane, he will fall 12.5(0.2 1) 19t feet in t seconds. How long will it take him to fall 126 feet? (Round your answer to two decimal places.) Xsec Need Help? Read It Watch It Talk: os Tutor Submit Answer Practice Another Version Type here to search W hp 4S * B yo S 4 $* 3 Cn 2 7 U R E Ww e7 N B

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Expert Answer

Step 1

The equation for height function

ht) 12.5(0.2-1)+ 19!
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ht) 12.5(0.2-1)+ 19!

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Step 2

He fall 126 feet means that h(t)=126.

Therefore, 126 12.5(0.2' -1)19
126 12.5(0.22.5+19
12.5(0.2)19-138.5 0
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Therefore, 126 12.5(0.2' -1)19 126 12.5(0.22.5+19 12.5(0.2)19-138.5 0

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Step 3

Graph

...
Sketch the graph ofthe function 12.5(0.2')+
19t 138.5 = 0 as shownbelow
(0.07,0)
(7.289,0)
10
-10
20
30
40-
-504
60
70
80
90
100
From the above graph, it is observed that the equation 12.5(0.2')+19t -138.5 = 0
-0.07 and t= 7.289
has two solutions which are t
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Sketch the graph ofthe function 12.5(0.2')+ 19t 138.5 = 0 as shownbelow (0.07,0) (7.289,0) 10 -10 20 30 40- -504 60 70 80 90 100 From the above graph, it is observed that the equation 12.5(0.2')+19t -138.5 = 0 -0.07 and t= 7.289 has two solutions which are t

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