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Katena32 [7]
3 years ago
5

In right triangle ABC, LCis a right angle and sin A = sin B. What is m Α?

Mathematics
2 answers:
marshall27 [118]3 years ago
4 0

Answer:

B. 45

Step-by-step explanation:

45 - 45 -90 triangle

sinA = sinB

45 = 45

45 + 45

= 90

Pls brainliest :))))

eimsori [14]3 years ago
3 0

Answer:

B

Step-by-step explanation:

∵A=sinB

∴∠A=∠B

∵ΔABC is RTΔ

∴∠C=90°

∴∠A+∠B=180°-90°=90°

∴∠A=∠B=45°

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Answer:          410 possible points

To solve for the possible points in the course, use a proportion and cross multiply.

<h2>What is a proportion?</h2>

A proportion is two fractions that are equal to each other. For the fractions to be equal, they are proportionate. In our math problem, percentage is proportionate the the number of points.

The fractions represent information you have, and one variable will represent what you are solving for.

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<h3 /><h3>Write a proportion</h3>

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Keep the information with the same units inside the same fraction. Here, percentage is represented by the first fraction. Points is represented by the second fraction.

\displaystyle{\frac{90}{100}=\frac{369}{x}}

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We can solve using cross multiplication. This is when we multiply each numerator by the denominator from the other fraction.

90x = 369*100        Simplify by multiplying.

90x = 36,900            Isolate the variable <em>x</em>.

\displaystyle{\frac{90x}{90} = \frac{36,900}{90}}           Divide both sides by 90 to cancel out 90 on the left.

\displaystyle{x = \frac{36,900}{90}}              Divide.

x = 410                    Solved for <em>x</em>, representing the possible points.

∴ The possible points in the art course is 410.

Learn more about finding a missing number given percentage here: brainly.com/question/26535441

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