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ivanzaharov [21]
3 years ago
7

ABCD is a trapezoid. Find y

Mathematics
2 answers:
aleksandrvk [35]3 years ago
5 0
Y = 105 degrees

Angle A = Angle B
Angle C = Angle D
Trapezoid: 360 degrees

75+75= 150
360 - 150 = 210
210/2 = 105
babunello [35]3 years ago
4 0

Answer:

C

Step-by-step explanation:

\angle A + \angle D = 180

\angle A + y = 180

180 = 75 + y

y = 180 - 75 = 105

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Step-by-step explanation:

this is a piecewise function

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examples:

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3 years ago
How do you solve linear equations with substitutions?
Nostrana [21]

Answer:

The method of solving "by substitution" works by solving one of the equations (you choose which one) for one of the variables (you choose which one), and then plugging this back into the other equation, "substituting" for the chosen variable and solving for the other. Then you back-solve for the first variable.

Step-by-step explanation:

Solve the following system by substitution.

2x – 3y = –2

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