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wolverine [178]

3 years ago

10

A ball is thrown vertically upward with an initial velocity of 48 feet per second. The distance s (in feet) of the ball from th

e ground after t seconds is s = 48 t -16 t ^2. (a) At what time t will the ball strike the ground? (b) For what time t is the ball more than 32 feet above the ground?

1 answer:

ra1l [238]3 years ago

5 0

Hello,

s=48t-16t²

a)
s=0==>16t(3-t)=0==>t=0 or t=3

b)
s>32==>48t-16t²>32===>16(t²-3t+2)<0
Δ=9-8=1
==>16(t-1)(t-2)<0

==>1<t<2 (negative between the roots)

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kodGreya [7K]

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6 0

3 years ago

In your own words, explain to me what is absolute value? Make sure to talk about the definition of it, how you find it, and how

Tom [10]

Answer:

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4 0

2 years ago

WORTH 100 POINTS NEED DONE ASAP WRONG ANSWERS WILL BE REPORTED THANK YOUUU

zysi [14]

Answer:

3.

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Step-by-step explanation:

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7 0

3 years ago

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azamat

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3 years ago

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3 years ago