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shusha [124]
3 years ago
11

PLEASE help 30 points

Mathematics
1 answer:
Vlad [161]3 years ago
6 0

Answer:

B

Step-by-step explanation:

took the test

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Line L is mapped onto the line t by a dilation centered at
STatiana [176]

The equation of line T is 2x - y = 7 ⇒ (6x - 3y = 21)

Step-by-step explanation:

A dilation is a transformation that produces an image that is the same shape as the original, but is a different size

  • If the equation of a  line is ax + by = k is dilated, with center origin and scale factor k, then the equation of the image of the line is kax + kby = kc
  • The line and its image are parallel
  • The coordinates of a general point on the image is (kx , ky)

Line L is mapped onto the line T by a dilation centered at the origin and  a scale factor of 3.

That means lint T is the image of line L after dilation

∵ The equation of line L is 2x - y = 7

∵ Line L is dilated by scale factor 3 and centered at origin

- That means multiply the equation of line L by 3 to find the

   equation of line t

∵ Line T is the image of line L after dilation

∴ The equation of line T is (3)(2x) - (3)(y) = (3)(7)

∴ The equation of line T is 6x - 3y = 21

<em>Very important note:</em>

The equation of line T is the same with equation of line L but multiplied by the scale factor 3 ⇒ L and T are coincide lines (same line)

That means the equation of lines T and L is 2x - y = 7

The equation of line T is 2x - y = 7 ⇒ (6x - 3y = 21)

Learn more:

You can learn more about dilation in brainly.com/question/2480897

#LearnwithBrainly

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Step-by-step explanation:

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<img src="https://tex.z-dn.net/?f=5x%5E%7B2%7D%20%2B%20x-7%3D" id="TexFormula1" title="5x^{2} + x-7=" alt="5x^{2} + x-7=" align=
zysi [14]

Equation: 5x^2+x-7

Since there aren't any like terms and it can't be factored, your answer would be:

5x^2+x-7

Hope this answer helped you!

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x=400 m is the correct answer

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Ron has 10 marbles that are the same size and
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??

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