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likoan [24]
3 years ago
14

Find the value of y​

Mathematics
1 answer:
Alex787 [66]3 years ago
7 0

Answer:

69 degrees

Step-by-step explanation:

The triangles are congruent because one of the angles is congruent to the other and the angle at the top is the same. The total number of degrees in a triange is 180. 180-(66+45 (the angle lenghts of the other 2 angles)) is equal to 180-111=69 degrees.

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Write an equation in slope-intercept form of the line that passes through (-1, 4) and (0, 2)
MrMuchimi

Answer:

y = -2x + 2

General Formulas and Concepts

<u>Pre-Alg</u>

  • Order of Operations: BPEMDAS

<u>Algebra I</u>

Slope-Intercept Form: y = mx + b

  • m - slope
  • b - y-intercept

Slope Formula: m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

Point (-1, 4)

y-intercept (0, 2)

<u>Step 2: Find slope </u><em><u>m</u></em>

  1. Substitute:                    m=\frac{2-4}{0+1}
  2. Subtract/Add:               m=\frac{-2}{1}
  3. Divide:                          m=-2

<u>Step 3: Write linear equation</u>

y = -2x + 2

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