3 years ago

What is cos K? I suck at math:(

Mathematics

1 answer:

SVETLANKA909090 [29]3 years ago

6 0

Answer:

cos K = 12/13

Step-by-step explanation:

cos theta = opposite side/ hypotenuse for a right triangle

cos K = 12/13

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kirill [66]

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2 years ago

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2 years ago

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2 years ago

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Write an expression for 213 increased by d: $213+d=x$

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2 years ago

A ball is thrown upward with an initial velocity of 96 ft/sec from a height 640 ft. Its height h, in feet, after t seconds is

olchik [2.2K]

Check the picture below.

thus is at 0 = -16t² + 96t +640,

$\bf 0=-16t^2+96t+640\implies 0=-16(t^2-6t-40)
\\\\\\
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\begin{cases}
\boxed{10}\\
-4
\end{cases}$

well, clearly it can't be a negative value for the elapsed seconds, so it can't be -4.

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3 years ago