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andrezito [222]
3 years ago
13

Find x. Round your answer to the nearest tenth of a degree.

Mathematics
1 answer:
mixer [17]3 years ago
4 0
I think it 32.44 try that am
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Pleeeeese help me as fast as you can!!!
Aleonysh [2.5K]

Answer:

A. y=3x-10

C. y+6=3(x-15)

Step-by-step explanation:

Given:

The given line is 6x+18y=5

Express this in slope-intercept form y=mx+b, where m is the slope and b is the y-intercept.

6x+18y=5\\18y=-6x+5\\y=-\frac{6}{18}x+\frac{5}{18}\\y=-\frac{1}{3}x+\frac{5}{18}

Therefore, the slope of the line is m=-\frac{1}{3}.

Now, for perpendicular lines, the product of their slopes is equal to -1.

Let us find the slopes of each lines.

Option A:

y=3x-10

On comparing with the slope-intercept form, we get slope as  m_{A}=3.

Now, m\times m_{A}=-\frac{1}{3}\times 3=-1. So, option A is perpendicular to the given line.

Option B:

For lines of the form x=a, where, a is a constant, the slope is undefined. So, option B is incorrect.

Option C:

On comparing with the slope-point form, we get slope as  m_{C}=3.

Now, m\times m_{C}=-\frac{1}{3}\times 3=-1. So, option C is perpendicular to the given line.

Option D:

3x+9y=8\\9y=-3x+8\\y=-\frac{3}{9}x+\frac{8}{9}\\y=-\frac{1}{3}x+\frac{8}{9}

On comparing with the slope-intercept form, we get slope as  m_{D}=-\frac{1}{3}.

Now, m\times m_{D}=-\frac{1}{3}\times -\frac{1}{3}=\frac{1}{9}. So, option D is not perpendicular to the given line.

8 0
3 years ago
Plz help don't understand<br> 1 thru 4------Don't mind the other writing------
iogann1982 [59]
Hi there friend, I hope this helps explain a little better. Let me know if you have questions.
6 0
3 years ago
Can someone help me please
MakcuM [25]

Answer: They are equal

Step-by-step explanation:

One hectogram is equal to 0.1 kilogram

3 0
4 years ago
O to the repentant to ce actingon the surfaces or docts.
Mariulka [41]

Answer:

I am not sure

Step-by-step explanation:

bout I think is 212

7 0
3 years ago
Do you links of a rectangle is for X +7 and the width is three if the area of the rectangle is 129 square units what is the valu
GaryK [48]

Answer:

x = 36

Step-by-step explanation:

Length of a rectangle, x+7

Width = 3

Area of the rectangle, A = 129 units²

The area of a rectangle is given by :

A = lb

So,

(x+7)\times 3=129\\\\(x+7)=43\\\\x=43-7\\\\x=36

So, the value of x is equal to 36.

3 0
3 years ago
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