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Temka [501]
3 years ago
13

How do u solve this??

Mathematics
1 answer:
prohojiy [21]3 years ago
7 0

Answer:

x=22

Step-by-step explanation:

To solve, use an important geometry theorem.

  • The exterior angle of a triangle is equal to the sum of the two opposite interior angles.

Know this theorem, write 6x-7 = 103-x+2x and solve for x.

6x-7=103-x+2x

6x-7=103+x

5x-7=103

5x=110

x=22

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Function is a line points (3,2), (5,8), and (8,y) what is y
SashulF [63]
Y = mx + b

(3;\ 2)\to x_1=3;\ y_1=2\\\\(5;\ 8)\to x_2=5;\ y_2=8\\\\m=\dfrac{y_2-y_1}{x_2-x_1}\to m=\dfrac{8-2}{5-3}=\dfrac{6}{2}=3

Therefore we have: y = 3x + b.

Put the coordinates of the point (3; 2) to the equation of the line:

2 = 3\cdot3+b\\2=9+b\ \ \ |-9\\b=-7

Therefore we have: y = 3x - 7

Substitute the coordinates of the point (8; y) to the equation of the line:

y = 3\cdot8-7=24-7=17

Answer: y = 17.
6 0
3 years ago
Can you help me please?
vodka [1.7K]

Answer:

The answer would be C. because it does pass the HS line and the Verticate keeps going.

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3 years ago
Set 4x equal to x+30 and solve.
prisoha [69]

Answer:

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Step-by-step explanation:

1) Subtract x from both sides.

4x − x = 30

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3x = 30

3) Divide both sides by 3

x = \frac{30}{3}

4) Simplify \frac{30}{3} to 10

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Step-by-step explanation:

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