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2 years ago

7

A kicker kicks a football during practice. the ewuation below can be used to find the height (h) in feet of the football after t

seconds.
h(t)= -16t^2 + 96t
after how many seconds will the ball hit the ground?
a.7
b.0
c.96
d.y

1 answer:

Firdavs [7]2 years ago

3 0

H(t)=16(t+3)^2-144
use photomath

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One cubic meter of water weighs approximately 2200 pounds. There are 100 cm in one meter. If you have a box-shaped fish tank tha

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Answer:

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Step-by-step explanation:

first find the volume of the tank

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to convert this to m^3 we know that 1m = 100cm

$V = 72000 cm^3 \times \left(\dfrac{1\,\text{m}}{100\,\text{cm}}\right)^3$

$V = 72000 cm^3 \times \left(\dfrac{1\,\text{m}^3}{100^3\,\text{cm}^3}\right)$

the cm^3 cancel out.

$V = \dfrac{72000}{100^3} m^3$

$V = 0.072\,m^3$

by simply converting the side-lengths to meters beforehand can give you this answer directly:

$V = 0.3 \times 0.3 \times 0.8 = 0.072 m^3$

it is given that 1 meter cube of water weighs about 2200 pounds.

$1\,m^3 = 2200 \,\text{lb}$

multiply both sides with 0.072 to find our answer:

$1\,m^3 \times 0.072 = 2200 \times 0.072 \,\text{lb}$

$0.072\,m^3 = 158.4 \,\text{lb}$

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3 years ago

Jeanne has $12.50 in her bag. How much money does she need to buy a game that costs $72.60?

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guapka [62]

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Step-by-step explanation:

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Answer:

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_____

<em>Additional comment</em>

Consider an isosceles right triangle with leg lengths 1. Then the Pythagorean theorem tells us the length of the hypotenuse is ...

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c² = 1² +1² . . . . both legs are 1 in our example triangle

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