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2 years ago

I need help....................

Mathematics

1 answer:

inysia [295]2 years ago

3 0

10-200

12-240

15-300

21-420

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Solve for x..........10 points*

Ivanshal [37]

Answer:

$\huge\boxed{\sf x = 12}$

Step-by-step explanation:

8x + 34 = 130 (Vertical Angles are Equal)

Subtract 34 to both sides

8x = 130 - 34

8x = 96

Divide both sides by 8

x = 96 / 8

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12. Use a trigonometric ratio to find the measure of O in the triangle below. Give your answer to the nearest degree.

larisa [96]

Given :-

A right angled triangle with two sides 10cm and 9cm .

To Find :-

The value of theta .

Solution :-

At angle theta , 9cm side will be considered as the perpendicular and 10cm side will be hypotenuse . So , as we know that ;

$\longrightarrow sin\theta =\dfrac{perpendicular}{hypotenuse}$

Substituting the respective values,

$\longrightarrow sin\theta =\dfrac{9cm}{10cm}$

Simplify,

$\longrightarrow sin\theta= 0.9$

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$\longrightarrow \theta =sin^{-1}(0.9)$

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Hence the required answer is 64.15° . 

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2 years ago

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