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labwork [276]
3 years ago
6

M∠ABD=87° m∠ABC=9x−1° m∠CBD=6x+58 Encuentra m∠ABC

Mathematics
1 answer:
Softa [21]3 years ago
5 0

Answer: 9x - 1 = 9(2) - 1 = 17

Step-by-step explanation:

m∠ABD = m∠ABC + m∠CBD

87 = 9x -1 + 6x + 58

87 = 15x + 57

30 = 15x

2 = x

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2<em>C.</em> \displaystyle III.

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Step-by-step explanation:

3. <em>See</em><em> </em><em>above</em>.

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\displaystyle x^2 - 7x \\ x[x - 7] = 0; 7, 0 = x \\ \\ Set-Builder\:Notation: [x|7, 0 ≠ x] \\ Interval\:Notation: (-∞, 0) ∪ (0, 7) ∪ (7, ∞)

I am joyous to assist you anytime.

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