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SpyIntel [72]
3 years ago
7

If m1=35° and m2=75°, what is m3?​

Mathematics
2 answers:
sergiy2304 [10]3 years ago
5 0

Answer:

All angles of a triangle add up to 180°.

there m1+m2+m3=180°

35+75+m3=180

110°+m3=180°

m3=180°-110°

m3=70°

Answer is A.

Sveta_85 [38]3 years ago
4 0

Answer:

m3 should be 70°

all internal angles of a triangle add up to 180

180-35-75 = 70

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Answer:

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You already have y, plug it back into x + 3y = -12

x + 3(2x + 1) = -12

x + 6x + 3 = -12

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-<u>No Equation</u>: is set equal to a variable

Example:

2x + y = 10

4× + 2y = -3

Subtract 2x from each side of 2x + y = 10, you should get y= -2x + 10. Now that you have found y, substitute y into 4x+ 2y = -3.

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(Add 4x and -4x)

0 = -23

No Solution

<u>-Both</u><u> </u><u>Equations</u>: are set equal to a variable

Example:

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I hope this helped!

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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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Answer:

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