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TiliK225 [7]
2 years ago
5

What are the measurements of angles x,y,z & w? Thank you<3

Mathematics
2 answers:
Studentka2010 [4]2 years ago
6 0

Step-by-step explanation:

z°=180°-25°

z°= 155°

z°=x°=155° (vertically opposite angle).

w°=25°(alternate angle).

y°=z°=155°(alternate angle).

hope this helps you.

koban [17]2 years ago
3 0

Answer:

  • See below

Step-by-step explanation:

<u>As AB and CD are parallel lines cut by a transversal, we have:</u>

  • ∠x and ∠z are congruent as vertical angles
  • ∠x and y are congruent as corresponding angles
  • ∠w is congruent with 25° as alternate interior angles

<u>So the measures are:</u>

  • m∠x = m∠y = m∠y = 180° - 25° = 155° (supplementary angles sum to 180°)
  • m∠w = 25°
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Answer:

1 a.) 2t – 2

1 b.) –9z + 4

2 a.) –2v + 3

2 b.) –13k – 9

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4 b.) –3p + 11

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Step-by-step explanation:

  • <em>NOTE: I am kind of confused about the way this question is formatted, so I tried to answer everything I could decipher.</em>

1 a.) –2t + 5t – 2 – t →  2t – 2

1 b.) –5z + 4 – 4z →  –9z + 4

2 a.) 8v + 3 – 10v →  –2v + 3

2 b.) –6 – 6k – 3 – 7k →  –13k – 9

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4 a.) 6 + 8b – 1 – 8b →  5

4 b.) 1p + 6 + 5 – 4p →  –3p + 11

5 a.) 4x – 3x + 9 – 6x 5 →  –29x + 9

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2 years ago
8x + 20y = 20<br> 14x + 35y = k<br> For the above system of equations to be consistent, k must equal
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Answer:

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Step-by-step explanation:

The equations will be "consistent" when they describe lines that are not parallel.

<h3>Slopes</h3>

The slope of a line whose equation is written in this form is the opposite of the ratio of the y-coefficient to the x-coefficient:

  line 1 slope = -8/20 = -2/5

  line 2 slope = -14/35 = -2/5

These lines have the same slope, so will be parallel unless they have the same y-intercept.

<h3>Y-intercept</h3>

The y-intercept of each line is the ratio of the constant to the y-coefficient:

  line 1 y-intercept = 20/20 = 1

  line 2 y-intercept = k/35

We want these lines to have the same y-intercept so that they are not inconsistent. This requires ...

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  k = 35

For the equations to be consistent, we must have k = 35.

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<em>Additional comment</em>

Linear equations are generally categorized as "consistent" or "inconsistent," and "dependent" or "independent."

Equations are "inconsistent" if there are no values of the variables that satisfy all of the equations. They are "dependent" if they describe exactly the same relation between the variables. "Consistent" equations may be "dependent" (describing the same line, as here), or "independent" (describing lines with different slopes.)

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