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Paladinen [302]
3 years ago
14

Please help me due today i really need to pass

Mathematics
1 answer:
myrzilka [38]3 years ago
7 0

Answer:

1) 45 degrees

2) 75 degrees

3) 37 degrees

4) 43 degrees

5) 137 degrees

Step-by-step explanation:

1) Angle 1 is equal to the 45 degree angle above it, so we know it is 45 degrees

2) All triangles are 180 degrees. Angle 2 = 180 - 60 - Angle 1 = 180 - 60 - 45 = 75

3) These three angles = 180 degrees. 180 - 68 - Angle 2 = 180 - 68 - 75 = 37

4) All triangles are 180 degrees. 180 - 100 - Angle 3 = 180 - 100 - 37 = 43

5) 180 - Angle 4 = 180 - 43 = 137

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The number to be added is the square of half of the linear term coefficient. Such coefficient in our case is "10" (the number accompanying the variable x). Then, half of it is 10/2 = 5, and that number squared gives 25.

Therefore, the number to add on bothsides of the equality is 25, which leads to the following:

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This matches answer B) of your choices.

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<em> </em>

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