Find the unknown length by subtracting.(4x2 - 9x + 8) units
(3x2 + 6) units? units
A. (x2 - 9x + 8) units
B. (3x2 + 6) units
C. (x2 - 9x + 5) units
D. (x2 - 9x + 2) units
Answer: D
Mathematics
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Find the probability.Suppose that an honest coin is tossed ten times. What is the probability that it will come up heads at least once?
A. 
B. 
C. 
D. 
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Mathematics