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Alexxx [7]
2 years ago
10

HELP!!!!!!!!! I DONT UNDERSTAND THIS

Mathematics
1 answer:
ValentinkaMS [17]2 years ago
6 0

Answer:

x=86^{\circ}

y=94^{\circ}

z=54^{\circ}

Step-by-step explanation:

First, let's look at the largest triangle (two smaller triangles are combined) to solve for z. Since the sum of the angles in a triangle adds up to 180^{\circ}, we can write the equation:

20+74+32+z=180

z=180-126

z=54^{\circ}

Looking at the smaller triangle on the left, y (exterior angle) is the sum of the two opposite interior angles of the triangle on the left:

y=74+20

=94^{\circ}

Since x is the exterior angle of the triangle on the right, it is equivalent to the sum of the opposite interior angles of that triangle:

x=32+z

=32+54

=86^{\circ}

Hope this helps :)

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1 Multiply both sides by

n

−

3.2

n−3.2.

n

+

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=

9

2

(

n

−

3.2

)

n+0.3=

2

9

​

(n−3.2)

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n

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3.2

)

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​

(n−3.2) to

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)

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2

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n

+

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=

9

(

n

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)

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n+0.3=

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​

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n

−

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n

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28.8

28.8 to both sides.

0.6

+

28.8

=

7

n

0.6+28.8=7n

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0.6

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28.8

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29.4

29.4.

29.4

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7

n

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29.4

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n

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29.4

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