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Karolina [17]
3 years ago
15

A ball is thrown into the air with an upward velocity of 80 feet per second. The function

Mathematics
2 answers:
Ghella [55]3 years ago
5 0
After 5 seconds, that is the answer.
klemol [59]3 years ago
5 0

Answer:

5 seconds

B is correct

Step-by-step explanation:

h(t)=-16t^2+80t

where, t is time in seconds, h is height of ball in feet

When ball at ground h must be 0.

Set h=0 and solve for t

0=-16t^2+80t

-16t(t-5)=0

t=0,t-5=0

t=0,5

Hence, The ball reach at ground in 5 seconds

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blondinia [14]

Answer:

Step-by-step explanation:

1/4

7 0
3 years ago
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Shawn earned $2.77 per day for three days as interest on his $1,000.00 investment. What percent interest did he earn in total? G
Nady [450]

Answer: He earned 0.831% interest in total.

Step-by-step explanation:

Given: Shawn earned $2.77 per day for three days as interest on his $1,000.00 investment.

Interest per day = $2.77

Interest in 3 days = 3 x ($2.77)

= $8.31

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Required percentage of earnings = \dfrac{\text{Interest earned in 3 days}}{\text{Initial investment}}\times100

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7 0
3 years ago
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zaharov [31]

Answer:

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Step-by-step explanation:

Given:

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Length of cylinder = 12 cm

Find:

Volume of solid

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Volume of solid = Volume of hemisphere + Volume of cylinder

Volume of solid = (2/3)πr³ + πr²h

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5 0
3 years ago
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Free_Kalibri [48]

Answer: 45 miles


Step-by-step explanation:

Since Trevor rides 30 mph and does this for 1.5 hours, multiply 30 by 1.5


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3 0
3 years ago
Are these right? How do the parentheses make these two answers different?
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yes it is correct

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8 0
3 years ago
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