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GaryK [48]
3 years ago
5

I have a math final tomorrow and I don’t know how to do this. Someone please help!

Mathematics
1 answer:
Serga [27]3 years ago
5 0
135+105=240
Divide by 2
120
Then 180-120=60
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olga nikolaevna [1]

Answer:x=15

Step-by-step explanation:

<em>Angles that are opposite from each other are going to be the same in this case.</em>

<em>Let's plug in 15 into x</em>

<em />4(15)+8\\60+8\\68<em />

7 0
3 years ago
10(b + (-45) = -43 what is the answer for b?
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3 years ago
Please help me, I'm suffering from all of these parallel lines ;9
Anarel [89]

Answer:

1. y = 4x - 27

2. y = -4x - 15

Step-by-step explanation:

If two lines are parallel, then they have the same slope. So, the slope of the line we are looking for needs to be 4. We can start by writing a point-slope equation:

y - y1 = m(x - x1)

We can substitute the values we have, the point we are using is (8, 5) because it needs to be on the line:

y - 5 = 4(x - 8)

We can distribute:

y - 5 = 4x - 32

y = 4x - 27

We are not given the slope-intercept form, so we must divide both sides by two to get it:

y = 1/4 x + 8

A perpendicular line has the slope that is the negative reciprocal of the one that is given. So, the slope of the line would be - 4. We can start by writing a point-slope equation:

y - y1 = m(x - x1)

We can substitute the values we have, the point we are using is (-5, 5) because it needs to be on the line:

y - 5 = -4(x + 5)

We can distribute:

y - 5 = -4x - 20

y = -4x - 15

6 0
3 years ago
Please help me if you don’t know the answer, please don’t answer it.
Paul [167]

Answer:

Step-by-step explanation:

(1/2)/3 = x/4

1/6=x/4

x=4/6 = 2/3

3 0
3 years ago
Read 2 more answers
3x + 1 = 7 What is the value of x?
Olin [163]
The value for X is 2
5 0
3 years ago
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