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Answer:
(b^2 + 8b - 9) - (11b^2 + 4b -7)
b^2 + 8b - 9 - 11b^2 - 4b + 7
- 10b^2 + 12b -16
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
15/8
Answer:
70°
Step-by-step explanation:
The triangles have the same angles take 180-59-61