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2 years ago

Please HElpppppp 100 pointsss

Mathematics

1 answer:

exis [7]2 years ago

6 0

Answer:

Not for sure on some (hope this can help)

First photo:

<ABC = 60

<BCA = 90

<CAB = 30

Step-by-step explanation:

Second photo:

<XVR = 35

<RVS = 55

<WVS = 35

<RST = 20

<RSV = 70

<VSU = 20

<UST = 55

<TUS = 54

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3 years ago

Kinda want to cry right now.. Someone PLEASE help me.. I know there is someone out there smart enough.... 25 points and Brainlie

Svetlanka [38]

Answer:

a) Infinite solutions

b) No solutions

Step-by-step explanation:

First, know the following:

If the graphs intersect, there's only one solution.

If the graphs are parallel, there are no solutions.

If the graphs are the exact same line, there are infinite solutions.

For a):

Change the first equation into a linear one.

2x+3y=6

3y=-2x+6

$y=-\frac{2}{3} x+2$

Change the second equation into a linear one.

4x+6y=12
6y=-4x+12
$y=-\frac{2}{3} x+2$

Boom. You have two equations which are equal. As stated above, graphs on the exact same line have infinite solutions.

For b)

They are already in linear form so hurray.

$y=\frac{1}{5} x+2\\y=\frac{1}{5} x+10\\$

These lines are parallel since they have the SAME slope but a different y-intercept. As stated above, parallel lines have no solutions.

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3 years ago