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adelina 88 [10]
3 years ago
15

If the angles are represented in degrees, find both angles: \cos(3x+13)=\sin(2x+42) cos(3x+13)=sin(2x+42)

Mathematics
1 answer:
Sphinxa [80]3 years ago
4 0

Answer:

cos34°

sin56°

Step-by-step explanation:

Sin(2x+42)= sin90-(3x+13)

Sin(2x+42) = sin(90-13-3x)

Sin(2x+42) = sin(77-3x)

2x + 42 = 77-3x

5x. = 35

X = 7

If x = 7

cos(3x+13) = cos((3*7)+13)

cos(3x+13) = cos(21+13)

cos(3x+13)= cos34

And

sin(2x+42) = sin((2*7)+42)

sin(2x+42)= sin (14+42)

sin(2x+42) = sin56

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What is the solution of the system? use substitution. 5x - y =3 6x - y=8
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5x - y = 3 ------------ (1)
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From (1):
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soldier1979 [14.2K]

37 is 25% of 148; 148 is 400% of 37

Step-by-step explanation:

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Learn more about percentage at:

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3 years ago
I think I need to find x
ozzi

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-6

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Answer:

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