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lidiya [134]
3 years ago
9

Help with this question, ASAP!!

Mathematics
1 answer:
noname [10]3 years ago
5 0

Answer:

Option D). 171 feet is correct

Step-by-step explanation:

Given that a toy rocket is launched from 42 feet above the ground.

The height is rocket is given by f(t)=-16t^{2} +91t+42

To find the height of the rocket above the ground after 3seconds :

Given that f(0)=42

Take t=3

f(t)=-16t^{2} +91t+42

f(3)=-16(3)^{2} +91(3)+42

f(3)=-16(9) +91(3)+42

f(3)=-144 +273+42

f(3)=171 feet

Therefore, option D). 171 feet is correct

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