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Tom [10]
3 years ago
15

(c−4)+(3c+9) Helpppppppppppppp

Mathematics
1 answer:
kotykmax [81]3 years ago
4 0

Answer:

4c+5

Step-by-step explanation:

(c-4)+(3c+9)=c-4+3c+9=c+3c-4+9=4c-4+9=4c+5

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In triangle ABC the measure of angle A is 2x +3, the measure of angle B is 4x+2, and the measure of angle C is 2x-1. What are th
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see explanation

Step-by-step explanation:

the sum of the 3 angles in a triangle = 180°

Summing the 3 angles and equating to 180 gives

2x + 3 + 4x + 2 + 2x - 1 = 180

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8x = 176 ( divide both sides by 8 )

x = 22

∠A = 2x + 3 = (2 × 22) + 3 = 44 + 3 = 47°

∠B = 4x + 2 = (4 × 22) + 2 = 88 + 2 = 90°

∠C = 2x - 1 = (2 × 22) - 1 = 44 - 1 = 43°


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