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olga_2 [115]
3 years ago
7

2(4x - 1) + 3(3 - 2x) = 0

Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
3 0
2(4x-1) + 3(3-2x)=0
distribute
8x-2+9-6x=0
add like terms
2x+7=0
subtract 7 from both sides
2x= -7
divide both sides by 2
x=-7/2
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Which relations are functions?<br><br><br><br> Choose all answers that are correct.
-Dominant- [34]
Hello!

In a function, each input has only one output. In A, three has two outputs, 4 and 5, so A is not a function.

In B, you can use something called the vertical line test to see if each x value has one y value as an output. You move an imaginary vertical line across the graph, and if it intersects with two points it is not a function. If we do this on our graph, it will not intersect two points. Therefore, B is a function.

In C, we can see that each input has one output, or there are all different inputs, so C is a function.

For D we can use that vertical line test again. It intersects both the points (-1,1) and (-1,6) so D is not a function

Our final answers are B and C.


I hope this helps!




6 0
3 years ago
Read 2 more answers
1) Are the following lines parallel, perpendicular, or neither?
Maru [420]
In 1)

Line 1 has following coordinates.
(0,0) ; (1,-2) ; (2,-4)

Line 2 has following coordinates.
(0,0) ; (1,0.5) ; (2,1)

Line 3 has following coordinates.
(0,1) ; (1,1.5) ; (2,2)

If you'll draw the lines, you'll observe that Line 1 is perpendicular to Line 2 and Line 3 and Line 2 and Line 3 are parallel to each other.

So,
Option D will be correct.

5 0
4 years ago
Answer this one please!
Scilla [17]
Using simultaneous equation,

a=-1, b=1, x=1, y=0
OR
a=1, b=-1, x=1, y=0.
6 0
2 years ago
I need help with this
defon

i guess just times them all then divide up by how many numbers you have

3 0
3 years ago
Is 2x - 3 a function
maria [59]

Answer:

only if its y= 2x-3

6 0
3 years ago
Read 2 more answers
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