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3 years ago

165% of what number is 26.4?

Mathematics

1 answer:

alekssr [168]3 years ago

5 0

$x-searched\ number\\\\165\%=1.65\\\\1.65x=26.4\ \ \ \ |:1.65\\x=16\\\\165\%\ of\ 16\ is\ 26.4$

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I don't even know how to figure this out. I don't have a formula for this

yuradex [85]

Answer:

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Step-by-step explanation:

Use the trigonometry formula

$\cos^2\theta+\sin^2\theta=1$

You are given that

$\cos \theta=\dfrac{8}{17}$

Substitute into the first formula

$\left(\dfrac{8}{17}\right)^2+\sin^2\theta=1\\ \\\dfrac{64}{289}+\sin^2\theta=1\\ \\\sin^2\theta=1-\dfrac{64}{289}=\dfrac{289-64}{289}=\dfrac{225}{289}\\ \\\sin \theta=\pm \dfrac{15}{17}$

Angle $\theta$ is acute angle, then the sine of this angle is positive and

$\sin\theta=\dfrac{15}{17}$

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3 years ago

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Afina-wow [57]

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3 years ago

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Anastaziya [24]

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Answer:

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Step-by-step explanation:

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1 year ago