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Alexxandr [17]
3 years ago
5

Hich expression is equivalent to -4(7 - 2m) + 11m?

Mathematics
1 answer:
Sholpan [36]3 years ago
3 0

Answer:

- 4(7 - 2m) + 11m \\ =  - 28 + 8m + 11m \\ =   \boxed{19m - 28}

<em><u>Expression (19m-28) is equivalent to -4(7 - 2m) + 11m.</u></em>

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Multiplying monomials and binomials
lubasha [3.4K]

Answer:

28w^2-476w

Step-by-step explanation:

The general rule we are going to use to multiply this out is the distributive property. Which is:

a(b+c) = ab + ac

<u>Note:</u> x * x = x^2

Now multiplying, we get:

28w(w-17)\\=28w*w-28w*17\\=28w^2-476w

This is the multiplied out form, answer.

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Misha Larkins [42]

Answer: The coordinate of the center is (4,-3)

radius = 8

Step-by-step explanation:

Given ;

x^{2} +y^{2}=8x-6y+39

re - arranging , we have

x^{2} +y^{2}-8x+6y-39=0

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also

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Therefore;

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the formula for calculating r is given by:

r = \sqrt{g^{2}+f^{2}-c}

r = \sqrt{16+9+39}

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METHOD 2

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x^{2} -8x+y^{2}+6y-39=0

completing the square , we have

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(x-a)^{2}+(y-b)^{2}=r^{2}

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the coordinate of the center is ( 4 , -3)

r^{2}=64

r=8

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3 years ago
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