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Ksju [112]
4 years ago
8

−4(w+1)=−24 SIMPLIFY PLEASE HELP ASAP

Mathematics
2 answers:
marysya [2.9K]4 years ago
5 0

Answer:

w=5

Step-by-step explanation:

First, you do -4 times w and -4 times 1, which equals -4w+-4.

Then, you take -4 to the other side and it becomes -24+4=-20.

Now, you have -4w= -20

Lastly, you you divide -20/-4= 5.

w=5

Sorry if this is wrong.

san4es73 [151]4 years ago
4 0

Answer:

w = 5

Step-by-step explanation:

Expand brackets.

-4w - 4 = -24

Add 4 on both sides.

-4w = -20

Divide both sides by -4.

w = 5

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Given:

Angle A = 18.6°

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Steps:

Since we know the measure of 2 angles of a triangle we can find the measure of the third angle.

18.6° + 93° + ∠C = 180°

        111.6° + ∠C = 180°

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Therefore the measure of angle C is 68.4°.

now we can use the law of Sines,

\frac{BC}{sinA}=\frac{AB}{SinC}

\frac{BC}{sin(18.6)}= \frac{646}{sin(68.4)}

BC[sin(68.4)] = 646 [sin(18.6)]

BC = \frac{646*sin(18.6)}{sin(68.4)}

BC = \frac{646 * 0.3190}{0.9298}

BC = 221.63

BC = 222 meters

Therefore, the distance across the river is 222 meters.

Happy to help :)

If anyone need more help, feel free to ask

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