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DedPeter [7]
3 years ago
5

I am going to rip my hair out. Can somebody do a word for word step by step explanation for my problem? I will give 98 points I'

m desperate.
Solve the equation. Check for extraneous solutions.

9∣9-8x∣ = 2x+3
Mathematics
1 answer:
Yakvenalex [24]3 years ago
8 0

Answer:

9|9-8x|=2x+3    divide both sides by 9

l 9 - 8x l  =  [2x + 3] / 9        we have two equations

9 - 8x  = [2x + 3] / 9          and      9 - 8x =  - [2x + 3] / 9

multiply both sides by 9

81 - 72x  = 2x + 3                         81 - 72x  = -2x - 3

get the x's on one side and constants on the other

78  = 74x                                    84  = 70x

divide by 74                            divide by 70

78/74 = x =  39/37                      84/70  = x = 6/5



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3 years ago
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Answer:

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Step-by-step explanation:

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8 0
3 years ago
Which pair of undefined terms is used to define a Ray?
REY [17]

Answer:

The undefined terms which are used to define a ray is:

Point and a line.

Step-by-step explanation:

The undefined terms in coordinate geometry are:

Line, Points and Plane.

since a line do not have any length, Point has a location but no size.

A line has no width and it extends infinitely and is one dimensional.

and a plane extends infinitely in both the dimensions.

<em>Ray:</em>

<em>A ray is part of a line, has one fixed endpoint, and extends infinitely along the line from the endpoint.</em>

Hence, the undefined terms which are used to define a ray is:

Point and a line.

4 0
3 years ago
Find the length of AC to the nearest tenth of a meter. 6pts
joja [24]
Ac is 7 because it is a right angle

4 0
3 years ago
I have no idea what the answers are
lara [203]

Hello from MrBillDoesMath!

Answer:

Top line: y = (2/3)x + 2

Bottom line:  y = (2/3)x  -1

Discussion:

The graph provided is hard to read but I did the best I could.

The top line appears to pass through the points (0,2) and (-3,0)

For this line

m =  change y /change x = (0-2)/(-3-0) = -2/-3 = +2/3. So

y = mx + b => y = (2/3) x+ b.  As the line passes through (0,2) set x = 0, y= 2 in y = (2/3)x + b =>  

2 = (2/3) 0 + b   => b = 2

Therefore    y = (2/3)x + 2

The bottom line appears to pass through the points (0,-1) and (3,1)

For this line

m =  change y /change x = (1-(-1)) /(3-0) = +2/-3. So

y = mx + b => y = (2/3) x+ b.  As the line passes through (0,-1) set x = 0, y= -1  in y = (2/3)x + b =>  

-1  = (2/3) 0 + b   => b = -1

Therefore    y = (2/3)x + -1

Thank you,

MrB

5 0
3 years ago
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