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zhuklara [117]
3 years ago
5

1. sin(x+20) = cos(2x+10) 2. sin (2x+14) = cos(x-5)

Mathematics
1 answer:
lakkis [162]3 years ago
3 0

Answer:

x=20°

2.

x=27°

Step-by-step explanation:

sin(x+20)=cos (2x+10)

=sin (90-(2x+10))

so x+20=90-(2x+10)

x+20+2x+10=90

3x=90-30

3x=60

x=60/3=20

2.

2x+14+x-5=90

3x+9=90

3x=90-9=81

x=81/3=27

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Which binomial is a factor of 9x^2+24xy+16y^2
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The length of a rectangle is 2 meters more than its width. The area of the rectangle is 80 square meters. What is the length and
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Step-by-step explanation:

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A = L * W

Givens

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