2 years ago

Hi i would give brainlist (Which function best models the following table?

Mathematics

1 answer:

stich3 [128]2 years ago

7 0

Answer:

A is the answer Have a great day

Step-by-step explanation:

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Given that cos(theta) = 8/17 and that theta lies in Quadrant IV, what is the exact value of sin 2(theta)?

Deffense [45]

Answer: $-\frac{240}{289}$

=========================================================

Explanation:

Use the pythagorean trig identity $\sin^2(\theta)+\cos^2(\theta) = 1$ and plug in the fact that $\cos(\theta) = \frac{8}{17}\\\\$

Isolating sine leads to $\sin(\theta) = -\frac{15}{17}\\\\$ . I'm skipping the steps here, but let me know if you need to see them.

The result is negative because we're in quadrant 4, when y < 0 so it's when sine is negative.

Therefore,

$\sin(2\theta) = 2\sin(\theta)\cos(\theta)\\\\\sin(2\theta) = 2*\left(-\frac{15}{17}\right)*\left(\frac{8}{17}\right)\\\\\sin(2\theta) = -\frac{240}{289}\\\\$

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2 years ago

if a plane leave the ski resort every hour. the first plane leaves at 10 and the second plane leaves at 4 how man planes leave e

Butoxors [25]

Asked and answered elsewhere.
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3 years ago

Jorge took 4 minutes to run 1/2 mile. How long will it take him to run 3 miles?

pychu [463]

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It will take him 24 minutes

Step-by-step explanation:

If it takes him 4 for minutes to run 1/2 mile, then it will most likely take him 8 minutes for 1 mile. Then you multiply 8 by 3, which gives you 24

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3 years ago

Which term completes the product so that it is the difference of squares?<br>(-5x-3)(-5x+<br>)

lilavasa [31]

Hello,

(-5x-3)(-5x+ 3) = (-5x)² - 3²

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3 years ago

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