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3 years ago

What times 3 equals 63

Mathematics

2 answers:

Lostsunrise [7]3 years ago

3 0

The answer is 21, because if you multiply 21 times 3 you get 63

jarptica [38.1K]3 years ago

3 0

21 x 3 equals 63 therefore 21 is your answer

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dedylja [7]

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3 years ago

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1. Use the formula S(d)=√9.8d to calculate the estimated speed, in meters per second, of a tsunami if the disturbance occurred a

postnew [5]

Answer: 1. 210 meters per second .

2. 756 kilometers per hour.

Step-by-step explanation:

Given : The formula $S(d)=\sqrt{9.8d}$ to calculate the estimated speed, in meters per second of a tsunami.

1. If the disturbance occurred at an ocean depth of 4,500 meters.

Then put d= 4500 in the above formula , we get

$S(d)=\sqrt{9.8\times4500}$

$S(d)=\sqrt{44100}=\sqrt{21\times21\times10\times10}\\\\=\sqrt{210^2}=210$

Hence, if the disturbance occurred at an ocean depth of 4,500 meters , the estimated speed would be 210 meters per second .

Also, A meter per second is equal to 3.6 kilometers per hour.

i.e. 1 meter per second = 3.6 kilometers per hour

Then by unitary method ,

210 meters per second = $3.6\times210$ kilometers per hour

=756 kilometers per hour.

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3 years ago

On Tuesday Clary and Mayla both ran for two and a half hours who ran the farther distance

Ksenya-84 [330]

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3 years ago

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ohaa [14]

Answer:

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3 years ago