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Anna71 [15]
2 years ago
13

Find the value of x.

Mathematics
1 answer:
polet [3.4K]2 years ago
7 0

Answer:

x = 20

Step-by-step explanation:

7x° + (x + 20)° = 180° (linear pair)

Solve for x

7x + x + 20 = 180

Add like terms

8x + 20 = 180

8x + 20 - 20 = 180 - 20

8x = 160

8x/8 = 160/8

x = 20

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Find the coordinates of the other endpoint of the segment, given its midpoint and one endpoint. (Hint: Let (w.y) be the unknown
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Answer:

<h2><em>(3,6)</em></h2>

Step-by-step explanation:

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M(X,Y) = (\dfrac{x_1+w}{2},  \dfrac{y_1+y}{2})

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Substituting the given end points into the given formula to get the other end points, we will have;

X = \dfrac{x_1+w}{2} \\2 =  \dfrac{1+w}{2} \\cross\ multiply\\4 = 1+w\\w = 4-1\\w = 3

Similarly;

Y = \dfrac{y_1+y}{2} \\2 =  \dfrac{-2+y}{2} \\cross\ multiply\\4 = -2+y\\y = 4+2\\y = 6

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Answer:

Step-by-step explanation:

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7 0
3 years ago
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