3 years ago

Someone Help me please

Mathematics

2 answers:

Katarina [22]3 years ago

7 0

Answer:

-1/2

Step-by-step explanation:

the number in front of the X when the equation looks like that is always the slope and the number that is added or subtracted after the x is the Y-intercept(where the line crosses through the Yaxis)

OLEGan [10]3 years ago

3 0

Answer:

-1/2

Step-by-step explanation:

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If sec theta = - √30 / 3, find cos theta.<br> if sin(-theta) = -0.97, find cos (π/2 - theta).

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Step-by-step explanation:

$\cos \theta = \frac{1}{ \sec\theta } = - \frac{3}{ \sqrt{30} } = - \frac{3 \sqrt{30} }{30} = - \frac{ \sqrt{30} }{10}$

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Note that

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$\cos( \frac{\pi}{2} - \theta ) = 0.97$

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