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Elan Coil [88]
2 years ago
13

The answer to this question

Mathematics
1 answer:
Sophie [7]2 years ago
4 0

The answer to this question is D) 13.9 in.

Try using the Pythagorean theorem when solving to get the hypotenuse or other angles for a right triangle.

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calculate the effective yearly rate if an investment offers a nominal interest rate of 9.5% compounded quarterly​
ivann1987 [24]

Answer:

9.725%

Step-by-step explanation:

(1.0475)^2 =1.09725

one year 2 periods 4.75% per period

4 0
2 years ago
What formula would be used to add two cells together after the equal sign?
emmasim [6.3K]

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a

Step-by-step explanation:

a

6 0
3 years ago
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myrzilka [38]
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3 years ago
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Find the exact value of cos 120° in simplest form with a rational<br> denominator.
IRINA_888 [86]

Given:

cos 120°

To find:

The exact value of cos 120° in simplest form with a rational  denominator.

Solution:

We have,

\cos 120^\circ

It can be written as

\cos 120^\circ=\cos (90^\circ+30^\circ)

\cos 120^\circ=-\sin 30^\circ             [\because \cos (90^\circ-\theta)=-\sin \theta]

\cos 120^\circ=-\left(\dfrac{1}{2}\right)             [\because \sin 30^\circ=\dfrac{1}{2}]

\cos 120^\circ=-\dfrac{1}{2}

Therefore, the exact value of cos 120° is -\dfrac{1}{2}.

7 0
2 years ago
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