Solve the triangle. Round the answer to the nearest tenth. 
A. a ? 7.3, B ? 7.8°, C ? 142.2°
B. a ? 7.3, B ? 7.8°, C ? 37.8°
C. a ? 8.3, B ? 2.8°, C ? 147.2°
D. a ? 8.3, B ? 6.9°, C ? 143.1°
Answer: A
Mathematics
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Fill in the blank(s) with the appropriate word(s).
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A. 1
B. 
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D. 
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x2 + 7x + 40 = 0
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