3 years ago

A system of

Mathematics

1 answer:

jok3333 [9.3K]3 years ago

8 0

Answer:

A system of

equations with infinitely many solutions would be represented on a graph

by parallel lines.

True

False

It would be True

Step-by-step explanation:

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The correct answer is A. 1

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If ∠C and ∠D are vertical angles and m ∠ C = x + 5 and m ∠ D = –2x + 80, what is m ∠ C?

amm1812

Answer:

m∠C=30°

Step-by-step explanation:

we know that

<u>Vertical Angles</u> are the angles opposite each other when two lines cross. They are always equal

m∠C=m∠D

substitute the given values

$(x+5)\°=(-2x+80)\°$

Solve for x

$x+2x=80-5\\3x=75\\x=25$

<em>Find the measure of angle C</em>

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substitute the value of x

m∠C=(25+5)=30°

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3 years ago

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Answered by: Skylar

5/21/2020

1:44 PM (Eastern Time)

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