First estimate the answer. Then add or subtract to find the exact answer. Write answer as a mixed number.
A. Estimate: 13; Exact: 
B. Estimate: 13; Exact: 
C. Estimate: 14; Exact: 
D. Estimate: 14; Exact: 
Answer: B
Mathematics
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Determine the degree of the polynomial.-11m3 + 3 + 15m4 + m9 - 12m2
A. 8 B. 10 C. 1 D. 9
Mathematics
Solve and check.
= 
A. x = - 
B. x = - 6
C. x = 6
D. x = 1
Mathematics
Solve the problem.Find the missing length in the following right triangle. If necessary, round to the nearest tenth. 
A. 14 in. B. 221 in. C. 21 in. D. 442 in.
Mathematics
Solve the equation.-11.0 = -2.2c
A. c = -8.8 B. c = 2.0 C. c = 5.0 D. c = 8.8
Mathematics