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Sergio039 [100]
3 years ago
6

PLEASE HELP I WILL MARK BRAINLIEST!

Mathematics
1 answer:
mylen [45]3 years ago
4 0
The answer is D.137 
The questions asked how many people he surveyed therefore you are to add up all the numbers.
74+33+12+18= 137
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PLEASE HELP! 20 POINTS!! PIC ATTACHED :)
leonid [27]

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cos(2θ) = cos²(θ) - sin²(θ) = 2 cos²(θ) - 1

Then

tan(2θ) = (2 sin(θ) cos(θ)) / (2 cos²(θ) - 1)

tan(2θ) = (2 × 15/17 × 8/17) / (2 × (8/17)² - 1)

tan(2θ) = -240/161

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7 0
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