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3 years ago

I know the answer already but can someone explain it please 2187= 3^x Answer is x=7

Mathematics

1 answer:

natima [27]3 years ago

6 0

Answer:

3^x = 2187 is equivalent to log 3 (2187) = x. (the three is the small number that goes lower next to the g). Then, use a calculator to do log(2187) / log(3)

Step-by-step explanation:

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How do you solve the problem?

sleet_krkn [62]

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3 years ago

Find the terminal point on the unit circle determined by pi radians.

svet-max [94.6K]

Answer:

Terminal points

$(x,y) = (\frac{1}{\sqrt{2} }) , (\frac{-1}{\sqrt{2} })$

Step-by-step explanation:

According to the question, it is provided that

$\theta = \frac{7\pi}{4}$

Now

$x = 1. cos (\frac{7\pi}{4})\\\\ = cos (2\pi - \frac{\pi}{4})\\\\= cos \frac{\pi}{4} \\\\= \frac{1}{\sqrt{2} }$

$y = 1. sin (\frac{7\pi}{4})\\\\ = sin (2\pi - \frac{\pi}{4})\\\\= -sin \frac{\pi}{4} \\\\= \frac{-1}{\sqrt{2} }$

Now

$(x,y) = (\frac{1}{\sqrt{2} }) , (\frac{-1}{\sqrt{2} })$

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We simply applied the above equations and then equate these two equations to determine the terminal points and therefore the same is to be considered

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3 years ago

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Alexxx [7]

Answer: 35

Step-by-step explanation:

Triangle BDC is an equilateral triangle

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