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Tatiana [17]
2 years ago
9

In a group of 30 children, 80%can’t swim how many children can’t swim

Mathematics
2 answers:
adoni [48]2 years ago
8 0

Answer:

24

Step-by-step explanation:

Allushta [10]2 years ago
3 0
80% is 0.8
30x0.8 is 24
So 24 cant swim
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The side lengths of a triangle are 9, 12, and 15. Is this a right triangle?
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Answer:

<h2>Yes, this is a right triangle.</h2>

Step-by-step explanation:

Hypotenuse always have the highest number than base and perpendicular.

Hypotenuse ( h ) = 15

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Perpendicular ( p ) = 12

Let's see whether the given triangle is a right triangle or not

Using Pythagoras theorem:

{h}^{2}  =  {p}^{2}  +  {b}^{2}

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Evaluate the power

225  = 144 + 81

Calculate the sum

225 = 225

Hypotenuse is equal to the sum of perpendicular and base.

So , we can say that the given lengths of the triangle makes a right triangle.

Hope this helps..

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