3 years ago

B is the midpoint of line segment AC. Line segment AB=2x+4 and line segment AC=40. Find x and Line Segment BC.

1 answer:

8 0

Because B is the midpoint of AC and AB = 2x + 4, BC must also be 2x + 4. So you add 2x + 4 to 2x + 4 to get 4x + 8. Then you set that to be equal to 40. Then you subtract 8 from both sides to get 4x = 32 and divide by 4 so you end up with x = 8.

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Triangle not drawn to scale

const2013 [10]

Answer:

b = 23.3

Step-by-step explanation:

First, we need to determine whether this is a right or non-right triangle.

We know that the sum of all the angles in a triangle must add up to 180, so we can add angles A and B and subtract the sum from 180:

$180-(40+88)=180-128=52$

The 52 indicates that it is a non-right triangle, so we must rely on either the law of sines or law of cosines to find the measure of b.

Given that we have angle A and its resulting side, a, along with angle B, we can use the law of sines:

$\frac{sin A}{a}=\frac{sin B}{b}$

$\frac{sin 40}{15}=\frac{sin 88}{b}\\ \\ 15*sin 88=b * sin 40\\\\b=\frac{b*sin 40}{sin 88}\\ \\b=23.3216=23.3$

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1 year ago

Simplify -4/7 + (-4/3)

Ksenya-84 [330]

-4/7 - 4/3

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your answer is -1 19/21

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3 years ago

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OlgaM077 [116]

Answer:

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Step-by-step explanation:

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3 years ago

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Answer:

Yes, this is equivalent.

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3 years ago

Which is a simplified form of the expression 5c – 7(2c – 4)?

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1.
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