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3 years ago

How many miles around is the earth??

Mathematics

2 answers:

Nataly_w [17]3 years ago

8 0

The answer is 40 miles around it

9966 [12]3 years ago

3 0

Hello there.

How many miles around is the earth??

196.9 million mi²

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romanna [79]

Answer:A that is what I think the answer is

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3 years ago

Hey can some one help me, Define a variable and write each phrase as an algebraic expression:

Elena L [17]

Answer:

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3 years ago

Here you go the brainless

Mrac [35]

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3 years ago

Vavilen inflated a huge balloon in 19 minutes. Then he poked a hole in the balloon so that it slowly leaked air out until it was

kaheart [24]

Considering balloon to be an spherical object

Volume of sphere = $\frac{4}{3}\pi r^3$ , where r is the radius of sphere.

After 19 minutes ,If radius of balloon changes from r to R, the Volume changes from V to V'.

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As given,rate at which the air leaked out of the balloon (in liters of air per minute) was half of the rate at which Vavilen inflated the balloon.

Also, $\frac{dR}{dt}=2 \times \frac{dr}{dt}$

Now, again the radius changes from R to r.So, Volume changes from V' to Back to V.

Time taken by the balloon to deflate = 38 minutes

But there is no relation between time and volume of Balloon.

So, we can't predict at which rate balloon is deflating or inflating.Apart from the statement given in Question: $\frac{dR}{dt}=2 \times \frac{dr}{dt}$

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3 years ago

Read 2 more answers

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lakkis [162]

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3 years ago