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2 years ago

Earth travels about 66,600 miles per hour as it revolves around the Sun. How far does Earth travel in 15 seconds?

Mathematics

2 answers:

Softa [21]2 years ago

6 0

Answer:

$\pmb{277.5~miles }$

Step-by-step explanation:

Earth travels about 66,600 miles per hour as it revolves around the Sun.

So,

In 3600 sec it travelled =66600 miles

In 1 sec it travelled= $\dfrac{66600}{3600} =18.5~miles$

HENCE,

in 15 sec it travelled = ${18.5×15~miles=277.5~miles }$

o-na [289]2 years ago

4 0

Step-by-step explanation:

Miles travelled in 1h=66600

Miles travelled in 1 sec=66600/3600

=18.5miles

Miles travelled in 15 seconds =18.5×15

=277.5miles

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2 years ago

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Likurg_2 [28]

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$$\sqrt{17} , 0, \sqrt[3]{8} , \frac{22}{7} , \sqrt{81} , \sqrt[3]{14}$

To which of these are irrational numbers:

Irrational:

An irrational number cannot be written in the form $\frac{a}{b}$ , where a and b are integers and b is non-zero.

(1) $\sqrt{17}$ cannot be written as $\frac{a}{b}$ .

So, it is a irrational.

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Cube and cube roots are get canceled.

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(4) $\sqrt{81}=\sqrt{9^2}$

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(5) $\sqrt[3]{14}$

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So, it is a irrational number.

Therefore $\sqrt{17}, \sqrt[3]{14}$ are irrational numbers.

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