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3 years ago

Who can help me please

Mathematics

1 answer:

aalyn [17]3 years ago

5 0

1.) 32
2.)42
3.)67
4.)78
5.) 13
6.)67
7.)23
8.80

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(a + b - c )(a + b + c )

denis-greek [22]

Answer:

$a^2+b^2-c^2+2ab$

Step-by-step explanation:

$(a+b-c)(a+b+c)=a^2+ab+ac+ab+b^2+bc-ac-bc-c^2=a^2+b^2-c^2+2ab$

Hope this helps!

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3 years ago

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charle [14.2K]

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3 years ago

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Flauer [41]

Answer: (2,3)

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3 years ago

Multiples of the following 3,7,8,5,9

guapka [62]

Find the lcd:
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3 years ago

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A line goes through the point (-8,9), and has a slope of 3/4

olya-2409 [2.1K]

Answer:

$y=\dfrac{3}{4}x+15$

Step-by-step explanation:

Given that,

A line goes through the point (-8,9), and has a slope of 3/4.

We need to express in the form of Ax+B for this line.

We have, m = 3/4

So,

$y=\dfrac{3}{4}x+B$

Put y = 9 and x = -8 in the above equation.

$9=\dfrac{3}{4}(-8)+B\\\\9=-6+B\\\\9+6=B\\\\B=15$

So,

$y=\dfrac{3}{4}x+15$

It is the required equation of the line.

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3 years ago