3 years ago

I really need help with this sampling question and it would mean alot if someone could answer it

Mathematics

1 answer:

GuDViN [60]3 years ago

7 0

Answer:

vc vzc vzv czzzzzzzzzzzz

Step-by-step explanation:

vczzzzzzzzzzz vdfBbbbbbbbbbfbfc

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How can you use a number line to model and compare positive and negative rational numbers

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Hello There!

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3 years ago

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S_A_V [24]

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Step-by-step explanation:

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2 years ago

The shorter leg of a right triangle is 7cm shorter than the longer leg. The hypotenuse is 7cm longer then the linger leg. What i

Gelneren [198K]

The shorter leg is 21cm, longer leg is 28 cm and hypotenuse is 35cm.

Step-by-step explanation:

Let,

The longer leg = x

The shorter leg = x-7

Hypotenuse = x+7

Using Pythagoras theorem;

$a^2+b^2=c^2\\(x-7)^2+(x)^2=(x+7)^2\\x^2-14x+49+x^2=x^2+14x+49\\2x^2-14x+49-x^2-14x-49=0\\x^2-28x=0\\x(x-28)=0\\$

Either,

x= 0

Or,

x-28=0 =>x=28

As length cannot be zero, therefore,

Longer side = 28cm

Shorter side = x-7 = 28-7 = 21cm

Hypotenuse = x+7 = 28+7 = 35cm

The shorter leg is 21cm, longer leg is 28 cm and hypotenuse is 35cm.

Keywords: triangle, pythagoras theorem

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