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Oksana_A [137]
3 years ago
15

I HAVE 15 MINUTES OFFERING ALL MY POINTS Find the value of x and y

Mathematics
2 answers:
ValentinkaMS [17]3 years ago
6 0

Answer:

y = 23

x = 28

Step-by-step explanation:

Find y first.

3y + 5y - 4 = 180                     The two angles are supplementary if the all the lines are parallel.  Combine the left side.

8y - 4 = 180                              Add 4 to both sides

8y - 4 + 4 = 180 + 4

8y = 184                                   Divide both sides by 8

y = 23

====================================

Now if the lines are parallel, then 3y = 2x + 13

But we already know y

3*23 = 2x + 13                         Do the multiplication

69 = 2x + 13                             Subtract 13

56 = 2x                                    Divide by 2

x = 56/2

x = 28

vredina [299]3 years ago
3 0

Answer:

y = 23

x = 28

Step-by-step explanation:

Shoooooot i am so late with this answer, so so sorry haha-

and i'm no gonna do the explanation because the guy above me did a fairly well explanation of how i solve them too.

uhm, have a good day!

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If 0 < b ≤ 90 and cos(11b + 2) = sin(12b − 4), what is the value of b?
Elza [17]

Answer:

b = 4

Step-by-step explanation:

The given expression is

Cos (11b + 2) = Sin (12b - 4)

Since, Sin(θ) = Cos(90 - θ)

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Where 0 < b ≤ 90°

11b + 2 = 90 - (12b - 4)

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Therefore, b = 4 will be the answer.

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3 years ago
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Hi,

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