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hammer [34]
3 years ago
12

I need help to figure this out?can someone help me?

Mathematics
1 answer:
prisoha [69]3 years ago
8 0
The definition of an angle bisector is a bisector that cuts an angle into two equal halves.

So BD bisects ∠ABC, therefore ∠ABD = ∠DBC

We can set the expressions inside them equal to each other, solve for x, and substitute it into the expressions again to find the total value of the angle.

4x - 15 = 3x + 12
- 3x         - 3x
______________
x - 15 = 12
   + 15   + 15
______________
x = 27

So x = 27, we can plug this back into an expression and do the same with the second one and add them, or, because we know they are equal, just multiply two once we find the value of the first one. 

4(27) - 15
= 108 - 15
= 93

Multiply 93 by 2.
93 x 2 = 186

Therefore m∠ABC is 186°

Hope this helps! :)
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Citrus2011 [14]

Answer:

y = 19

Step by step explanation:

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5 0
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(5x)+ (9y)+90 what is x and y
lana [24]

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5x+9y+90

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3 0
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Esteban finds 12 baseball cards on Monday and 24 more baseball cards on Tuesday. He gives some baseball cards to his sister, and
mojhsa [17]

Answer:

23 cards.

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5 0
3 years ago
Match each pair of polynomials to their sum.
Alex17521 [72]
<span>Answers:

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</span><span>
</span>
4 0
3 years ago
Can you help me please​
Volgvan
D
Area of a circle is: 兀r✖️r, so 4.1m ➗2 = 2.05, 2.05✖️2.05 = 4.2025
3 0
2 years ago
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