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3 years ago

Farah's brother is 7 years less than twice Farah's age, f. The sum of Farah's age and

Mathematics

1 answer:

Olin [163]3 years ago

4 0

Answer:

f+(2f-7)=41

Step-by-step explanation:

Farah's age is represented by the first f and her brother's age is represented by the (2f-7) and the sum of their ages is 41, therefore this is the correct answer

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

Show work please help

Snezhnost [94]

Answer:

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Step-by-step explanation:

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3 years ago

Given a triangle with: a =<br> 150, A = 75°, and C = 30°<br> Using the law of sines gives: c = 0

koban [17]

Answer:

$c = 77.6$

Step-by-step explanation:

You may have entered the measure of a side as the measure of an angle.

$\dfrac{\sin A}{a} = \dfrac{\sin C}{c}$

$\dfrac{\sin 75^\circ}{150} = \dfrac{\sin 30^\circ}{c}$

$c\sin 75^\circ = 150 \sin 30^\circ$

$c = \dfrac{150 \sin 30^\circ}{\sin 75^\circ}$

$c = 77.6$

You are correct. Good job!

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3 years ago