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fredd [130]
2 years ago
9

20 POINTSSSS HELPPP ME OUTTT PLEASEEEEEEE PEOPLE I NEED IT NOW PLEASE :’) NO BOTS OR I WILL REPORT!!!!! Which of the following e

quations describes the line shown below? Check all
that apply. (-1,8) (-3,-6)

Mathematics
1 answer:
Yuki888 [10]2 years ago
6 0
<h3>Answer:</h3>

[A] y - 8 = 7(x + 1).

[B] y + 6 = 7(x + 3).

<h3>Explanation:</h3>

<u>slope(m) = y2 - y1/x2 - x1</u>

  • - 6 - 8/- 3 + 1
  • - 14/- 2 = 7.

<u>Point slope form to find the equation</u>:

  • y - y1 = m(x - x1)
  • y - 8 = 7(x + 1)
  • y - 8 = 7x + 7
  • y = 7x + 15

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Answer: The measure of fourteenth angle is 120°.

Step-by-step explanation:

Since we have given that

Total number of angles in 14 gon = 14

Sum of measures of 13 angles = 2040°

As we know that sum of all angles in 14 gon would be

(14-2)\times 180^\circ\\\\=12\times 180^\circ\\\\=2160^\circ

So, the measure of fourteenth angle would be

\sum_{x=1}^{13}+x_{14}=2160^\circ\\\\2040^\circ+x_{14}^\circ=2160^\circ\\\\x_{14}^\circ=2160-2040\\\\x_{14}^\circ=120^\circ

Hence, the measure of fourteenth angle is 120°.

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marshall27 [118]

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Step-by-step explanation:

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