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Alla [95]
3 years ago
14

Can someone please help

Mathematics
1 answer:
Y_Kistochka [10]3 years ago
6 0

Answer:

  see below

Step-by-step explanation:

The product of a scalar and a matrix is a matrix of the <em>same dimensions</em>, each term having been multiplied by the scalar. The only answer choice with the same dimensions as the original is the last choice.

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Step-by-step explanation:

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Will give brainliest, please help fast​
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Answer:

Converting the equation x^2-20x+13=0 into completing the square method we get: \mathbf{(x-10)^2=87}

Step-by-step explanation:

we are given quadratic equation: x^2-20x+13=0

And we need to convert it into completing the square method.

Completing the square method is of form: a^2-2ab+b^2=(a-b)^2

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So, we need to add and subtract (10)^2 on both sides

x^2-20x+13=0\\x^2-2(x)(10)+(10)^2-(10)^2+13=0\\(x^2-2(x)(10)+(10)^2) \:can\: be\: written\: as\: (x-10)^2 \\(x-10)^2-100+13=0\\(x-10)^2-87=0\\(x-10)^2=87

So, converting the equation x^2-20x+13=0 into completing the square method we get: \mathbf{(x-10)^2=87}

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