2 years ago

Desperate Please Hurry Up

Mathematics

1 answer:

slega [8]2 years ago

5 0

10/2(25-20)

Use distributive property to simplify bottom.

2 x 25 = 50 and 2 x 20 = 40

Now you have 10/50-40

50 - 40 = 10

10/10 = 1

Your answer is 1.

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BabaBlast [244]

Answer:

s = 1/10

Step-by-step explanation:

First, divide both sides by 4 to get s by itself.

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3 years ago

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4. Incorrect

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3 years ago

A boat sails on a bearing of 77 degrees for 135 miles and then turns and sails 207 miles on a bearing of 192 degrees. Find the d

Andrew [12]

Answer:

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Please see the diagram for understanding of how the angles were derived,

Applying Alternate Angles, ABO =77 degrees

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Subtracting 12 from 77, we obtain the angle at B as 65 degrees.

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In the diagram, this is the line AC.

Applying Law of Cosines:

$b^2=a^2+c^2-2acCosB\\b^2=207^2+135^2-2(207)(135)Cos65^\circ\\b^2=37453.8654\\b=\sqrt{37453.8654} \\b=193.53\: miles$

The distance of the boat from its starting point is 193.53 miles (correct to 2 decimal places).

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