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otez555 [7]
3 years ago
6

Find the missing side Lengths (70 POINTS!)

Mathematics
2 answers:
Deffense [45]3 years ago
8 0

Answer:

The sides are as follows: x=18,\,\,\,y=9\sqrt{3}

Step-by-step explanation:

Starting with the side y, we can use the tan to solve for y:

\tan 30^\circ = \frac{9}{y}\implies y = \frac{9}{\tan 30^\circ}={9}\sqrt{3}

The side x can be determined using sin:

\sin 30^\circ = \frac{9}{x}\implies x = \frac{9}{\sin 30^\circ}= 18

So, the sides as as follows: x=18,\,\,\,y=9\sqrt{3}

(you can also verify this result is correct using the Pythagorean theorem)

Snowcat [4.5K]3 years ago
5 0

Answer:

x=18

y=\sqrt 18

Step-by-step explanation:

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Identify BR rounded to the nearest tenth. HELP PLEASE!!
ahrayia [7]

Answer:

<h2>BR ≈ 49.0</h2>

Step-by-step explanation:

Use cosine:

cosine=\dfrac{adjacent}{hypotenuse}

We have

adjacent=42\\hypotenuse=BR\\\alpha=31^o

\cos31^o\approx0.8572

Substitute:

\dfrac{42}{BR}=0.8572

\dfrac{42}{BR}=\dfrac{8,572}{10,000}          <em>cross multiply</em>

8,572BR=420,000                <em>divide both sides by 8,572</em>

BR=\dfrac{420,000}{8,572}

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3 years ago
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Alex17521 [72]

Answer:

Step-by-step explanation:

A is a subset of B while B is the universal set.

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A is a subset of B. That is A is contained in B.

5 0
3 years ago
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Leona [35]

Answer:

Option D. is correct.

Step-by-step explanation:

Let us assume that x = seven square root three plus two square root nine  

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The answer is seven square root of three plus six is irrational because the sum of a rational number and an irrational number is an irrational number.

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Paulo needs 5, 1/3 yd of material to make a curtain of certain size. How many such curtains can he make if he has 78 yd of mater
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Answer:

14.625

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