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Georgia [21]
3 years ago
10

An object is dropped from a hot-air ballon 1296 feet above the ground. The height of the object is given by: h = -16(t-9)(t+9) w

here the height “h” is measured in feet, and the time “t” is measured in seconds. After how many seconds will the object hit the ground?
Mathematics
1 answer:
Reil [10]3 years ago
4 0

Answer:

Step-by-step explanation:

So hitting the ground i think you just set the equation equal to 0

-16(t-9)(t+9)=0

t=0,9,-9 so it will take 9 second since the negative wont be the right choice.

I hope this helps?

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The best apporximation for the volume of this ball is 382 cubic inches.

<h3>What is the volume of the ball?</h3>

The volume of the ball is calculated by the formula V = 4 / 3πr³. This formula is the same in the whole world.

Given

A regulation basketball has a diameter of about 9 in.

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Hence, the best apporximation for the volume of this ball is 382 cubic inches.

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The population of a city has decreased by 38% since it was last measured. If the current population is 27,900, what what the pre
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<u>Answer: </u>

The population of a city has decreased by 38% since it was last measured. If the current population is 27,900 .Previous population of city was 45000.

<u> Solution: </u>

Given that current population of city is 27900.  

Also, population of a city has decreased by 38% since it was last measured.

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