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Alex Ar [27]
3 years ago
15

Evaluate the expression 34 ÷ (14 − 5) × 2. (4 points)

Mathematics
2 answers:
GalinKa [24]3 years ago
8 0
7.55 would be your answer
VladimirAG [237]3 years ago
6 0

Answer:

4.5

Step-by-step explanation:

This will be an easy explanation, but it will take time.

  1. 3 to the fourth power ÷ (14-5) x 2
  2. 3 to the fourth power ÷ 9 x 2
  3. 81 ÷ 9 x 2
  4. 81 ÷ 18 = 4.5

____________________________________________________________

Remember to use the PEMDAS operation.  

P- Paran.

E- Expo.

M- Multi.

D- Dib.

A- Add

S- Sub.

__________________________________________________________

If it wants a numerical expression, round to the nearest whole number.

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By using properties for <em>trigonometric</em> functions and <em>trigonometric</em> expressions, we find that the <em>exact</em> value of the sine of the angle 5π/12 radians is \frac{\sqrt{2+\sqrt{3}}}{2}.

<h3>How to find the exact value of a trigonometric expression</h3>

<em>Trigonometric</em> functions are <em>trascendent</em> functions, these are, that cannot be described algebraically. Herein we must utilize <em>trigonometric</em> formulae to calculate the <em>exact</em> value of a <em>trigonometric</em> function:

\sin \frac{5\pi}{12} = \sqrt{\frac{1 - \cos \frac{5\pi}{6} }{2} }

\sin \frac{5\pi}{12} = \sqrt{\frac{1 + \cos \frac{\pi}{6} }{2} }

\sin \frac{5\pi}{12} = \sqrt{\frac{1 + \frac{\sqrt{3}}{2} }{2} }

\sin \frac{5\pi}{12} =  \sqrt{\frac{2+\sqrt{3}}{4} }

\sin \frac{5\pi}{12} = \frac{\sqrt{2+\sqrt{3}}}{2}

By using properties for <em>trigonometric</em> functions and <em>trigonometric</em> expressions, we find that the <em>exact</em> value of the sine of the angle 5π/12 radians is \frac{\sqrt{2+\sqrt{3}}}{2}.

To learn more on trigonometric functions: brainly.com/question/15706158

#SPJ1

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