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marta [7]
3 years ago
13

What is the solution for these lines (line a ) x+2y=4 (line b ) 3x-2y=4

Mathematics
2 answers:
Amiraneli [1.4K]3 years ago
7 0
Line a) x+2y=4
slope: -(1/2)
y-intercept: 2

line b) 3x-2y=4
slope: 3/2
y-intercept: -2
Amanda [17]3 years ago
3 0
X+2y=4
3x-2y=4
4x=8
x=2
2+2y=4
2y=2
y=1

y=1
x=2

Hope this helps :)
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I need help with this problem!! Problem 21 show steps please
Gekata [30.6K]

The y intercept is 3

You can also say that the y intercept is at (0,3) which is a more detailed answer. However saying "y intercept is 3" is sufficient enough because the x coordinate of the y intercept is always x = 0.

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5 0
3 years ago
Read 2 more answers
Can I get some help on this one and if you could show its done I would appreciate it. Thank you.
Andreyy89
<h3>Answer: 5.5 which is choice B</h3>

Have a look at the diagram I posted below. I marked on your image to add in another angle. This angle is also 20 degrees because of congruent alternate interior angles (horizontal lines are parallel). This angle I add in is the reference angle of the triangle

opposite the reference angle is the vertical side x

adjacent to the reference angle is the horizontal side 15

We'll use the tangent rule. Make sure your calculator is in degree mode.

tan(angle) = opposite/adjacent

tan(20) = x/15

15*tan(20) = x <<-- multiply both sides by 15

x = 15*tan(20)

x = 5.45955 <<--- use calculator; this is approximate

x = 5.5 <<--- round to one decimal place

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3 years ago
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