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2 years ago

13

There are nine kids in a class. When any two meet, each says "hi" to the other and the answer "hi" follows. Before the class sta

rts, how many times would one hear the word "hi"?

1 answer:

Xelga [282]2 years ago

6 0

72 times, I believe. Hope I helped.

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A triangle with side lengths of 32, 60 and 68 is a right triangle?<br> true or false

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The width of a rectangle is 7y -7.5 feet and the length is 7.5y + 8 feet. Find the perimeter of the rectangle

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Combine like terms:

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Please help math

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$\displaystyle\\
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Step-by-step explanation:

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Question 6 of 6

Bezzdna [24]

$\huge \boxed { \sf \: Answer}$

We have to use the formula:

$(ab) ^{n} = {a}^{n} {b}^{n}$

So,

$(5 \times 9) ^{12} \\ = {5}^{12} . 9^{12}$

Also, it will be

$45^{12}$

Hope you could understand.

If you have any query, feel free to ask.

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2 years ago