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2 years ago

Helpppppppppppppp!!!!

Mathematics

1 answer:

Vinil7 [7]2 years ago

7 0

Answer:

x = 49

Step-by-step explanation:

The two interior angles added together equal the exterior angle.

Make an equation and solve for x.

x - 4 + 2x + 10 = 153

3x + 6 = 153

3x + 6 - 6 = 153 - 6

3x = 147

3x/3 = 147/3

x = 49

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Amanda [17]

Answer:

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Step-by-step explanation:

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2 years ago

BD bisects m m Find m

amm1812

The text of the question is not visible in the answering window. I'll reproduce it here:

BD bisects <ABC.

m <ABD= 2.5x + 8.6

m<CBD = 3.5x - 3.4

Find m<ABC

Answer:

$m\angle ABC = 77.2^\circ$

Step-by-step explanation:

We have an angle ABC and a line BD bisecting it.

If an angle is bisected, then the two formed angles are congruent, that is

$m\angle ABD=m\angle CBD$

Substituting the algebraic expressions for both angles:

$2.5x + 8.6=3.5x - 3.4$

Subtracting 8.6 and 3.5x:

$2.5x - 3.5x = -8.6 - 3.4$

Operating:

$-x = -12$

$x = 12$

The two angles are:

$m\angle ABD=2.5x + 8.6=2.5(12) + 8.6=38.6^\circ$

$m\angle CBD=3.5x - 3.4 = 38.6^\circ$

As expected, both angles have the same measure.

The measure of the total angle ABC is twice any of those:

$m\angle ABC = 2*38.6^\circ=77.2^\circ$

$\mathbf{m\angle ABC = 77.2^\circ}$

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3 years ago

Evaluate the expression for k = 17.<br><br> 3k =

Debora [2.8K]

I believe this would be 51

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3 years ago

The distance between -18 and 15 is equal to_______

ArbitrLikvidat [17]

Answer:

sorry I forgot try googling it

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3 years ago

Can you help me with my math?

Dennis_Churaev [7]

Answer:

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Step-by-step explanation:

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3 years ago