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gladu [14]
3 years ago
7

If l || m, find the value of x

Mathematics
1 answer:
morpeh [17]3 years ago
6 0

Answer:

x = 27°

Step-by-step explanation:

<em>l ║ m    </em>Given

(x + 72) + (3x) = 180°       If parallel line then same-side angles = 180°

4x + 72° = 180°

 4x = 180° - 72°

 4x = 108°

   x = 108°/4

   x = 27°

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Which system of equations below has infinitely many solutions? y = –3x 4 and y = –3x – 4 y = –3x 4 and 3y = –9x 12 y = –3x 4 and
Flura [38]

the equations y = –3x + 4 and 3y = –9x + 12 have infinitely many solutions. option B is correct.

<h3>What is the linear system?</h3>

It is a system of an equation in which the highest power of the variable is always 1. A one-dimension figure that has no width. It is a combination of infinite points side by side.

Condition for the parallel lines.

L1,  ax + bx + c = 0

L2, dx + ey + f = 0

If \rm \dfrac{a}{d} = \dfrac{b}{e} = \dfrac{c}{f} then lines have infinitely many solutions.

<h3>Which system of equations below has infinitely many solutions?</h3>

y = –3x + 4 and 3y = –9x + 12

On comparing we have

a = -3 , b = 1, and c = 4

d = -9 , e = 3, and f = 12

Then their ratio will be

\rm \dfrac{1}{3} = \dfrac{-3}{-9} = \dfrac{4}{12}\\\\\rm \dfrac{1}{3} = \dfrac{1}{3} = \dfrac{1}{3}

Hence  y = –3x + 4 and 3y = –9x + 12 have infinitely many solutions.

Thus the option B is correct.

More about the linear system link is given below.

brainly.com/question/20379472

7 0
3 years ago
Value of x <br> (6x+2)°<br> (5x+22)°
Gnesinka [82]

Answer:

x=20°

Step-by-step explanation:

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(6x+2)°=(5x+22)°

6x°+2°=5x°+22°.... collect the like terms

6x°-5x°=22°-2°

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The equation would be y=-1/2x
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2 years ago
Solve for a side in right triangles
Vadim26 [7]

Answer:

The answer is AC = 3.76

Step-by-step explanation:

CohCahToa

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sin(70°) = AC/4

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AC ≈ 3.758770483

AC = 3.76

8 0
2 years ago
Read 2 more answers
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