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Aleks [24]
3 years ago
14

Find the measures of the supplementary angles if their measures are in ratio of 3:7

Mathematics
1 answer:
dsp733 years ago
5 0

Answer:

Step-by-step explanation:

Let the two angles be 3x and 7x.

Supplementary angles add up to 180 degrees.

Therefore:

3x + 7x = 180

10x = 180

x = 18

3x = 3 * 18 = 54

7x = 7 * 18 = 126

Answer:

The two angles are 54 degrees and 126 degrees.

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What is the solution of the linear-quadratic system of equations? { y = x 2 + 5 x − 3 y − x = 2
svp [43]

The two solutions for the system of equations:

y = x^2+ 5x - 3

y - x = 2

Are:

(-5, -7) and (1, -1)

<h3>How to solve the system of equations?</h3>

Here we have the following system of equations:

y = x^2+ 5x - 3

y - x = 2

We can replace the first equation into the second one to get:

(x^2+ 5x - 3) - x = 2

x^2 + 4x - 3 = 2

x^2 + 4x - 3 - 2 = 0

x^2 + 4x - 5  = 0

Using the quadratic formula, we will get the solutions:

x = \frac{-4 \pm \sqrt{4^2 - 4*1*-5} }{2} \\\\x = \frac{-4 \pm 6}{2}

The two solutions are:

x = (-4 - 6)/2 = -5

x = (-4 + 6)/2 = 1

To find the values of y, we can evaluate the linear equation:

when x = -5

y - (-5) = -2

y + 5 = -2

y = -2 - 5 = -7

So one solution is (-5, -7)

when x = 1

y - 1 = -2

y = -2 + 1 = -1

The other solution is (1, -1)

Learn more about systems of equations:

brainly.com/question/13729904

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5 0
1 year ago
Is this a direct variation y=x+x
Lesechka [4]

Answer:

x2=3

x1=2

y=10

Step-by-step explanation:

5 0
3 years ago
How many solutions does the system of equations have Y = 4x+3 and 2Y-8x = 3
just olya [345]

Answer:

The system has no solution.

Step-by-step explanation:

Write the system as

y - 4x =3

2y - 8x = 3

The 2nd equation can be written as

2(y - 4x)

and the system would be

y - 4x =3

2(y - 4x) = 3

Now, call y -4x = z. Then we would have the system

z = 3

2z = 3

But if z =3 then 2z = 6 and we have a contradiction.

We conclude that the system has no solution.

7 0
4 years ago
PLS HELP RIGHT NOW !!!!
Ierofanga [76]

Answer:

1-*8364464737353=kgkdtyry

6 0
3 years ago
Read 2 more answers
Which of the following best describes the solution to the system of equations below?
kotykmax [81]

Answer:

the correct answer is C the system of equations has no solution.

8 0
3 years ago
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