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Nady [450]
3 years ago
8

Help please?

Mathematics
1 answer:
ziro4ka [17]3 years ago
8 0

Answer:

  • cos(θ) = -1/2
  • tan(θ) = √3

Step-by-step explanation:

You know that ...

  • cos(θ)² = 1 - sin(θ)²
  • tan(θ) = sin(θ)/cos(θ)
  • cosine is negative in the third quadrant (where π < θ < 3π/2)

Using what you know about the relationships of these trig functions, you can find ...

  cos(θ)² = 1 - ((-√3)/2)² = 1 - 3/4 = 1/4

  cos(θ) = -1/2 . . . . . negative square root of 1/4

__

  tan(θ) = sin(θ)/cos(θ) = ((-√3)/2)/(-1/2)

  tan(θ) = √3

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juin [17]
<h2>Similarities:</h2>
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<h2>Differences:</h2>
  • If you divide or multiply by a negative number, you must flip the inequality symbol. Dividing or multiplying by a negative number doesn't affect the equal sign.
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7 0
3 years ago
is $20000 is invested for at 8% interest, compounded quarterly, find the interest earned in 25 years.​
krek1111 [17]

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3 years ago
The length of the base edge of a pyramid with a regular hexagon base is represented as x. The height of the pyramid is 3 times l
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8 0
3 years ago
If x^2 = 16(5), then x =
Bogdan [553]

Answer:

4\sqrt{5} or 8.944

Step-by-step explanation:

x^{2} = 16(5)

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6 0
3 years ago
Please answer this correctly
Gala2k [10]

Answer: 2/3

Step-by-step explanation:

There are three sectors of equal area. 2 is one of the sectors. You can get 3 and 4. There are two total cases out of 3, so it's 2/3

Hope that helped,

-sirswagger21

5 0
4 years ago
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