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Tasya [4]
3 years ago
10

Simplify the expression below. show your work. -(-7y+12)

Mathematics
1 answer:
Ray Of Light [21]3 years ago
4 0
-(-7y+12) = 7y -12
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BabaBlast [244]

Answer:

1st scenario: 163.3°

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3rd scenario: 142.3°

Step-by-step explanation:

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2nd scenario: angles 1 and 4 are same-side interior and add up to 180

3rd scenario: angles 1 and 8 are corresponding and equal; if angle 7 is 37.7 then angle 8 is 142.3 (they form a linear pair). Since angles 1 and 8 are equal then angle 1 is also 142.3

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3 years ago
The vertex angle of an isosceles triangle measure 40.whats the measure of the base angle?
Eddi Din [679]
I don't know if my answer is completely correct, but I think it's 100. All triangles add up to 180, and an isosceles triangle has 2 equal sides. 40 would be the 2 sides, and 180 subtracted from 80 equals 100.
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