Solve.A boat moves 28 km/h in still water. It travels 80 km upstream and 80 km downstream in a total time of 7 hours. What is the speed of the current?
A. 9 km/h
B. 8 km/h
C. 12 km/h
D. 10 km/h
Answer: C
Mathematics
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Completely factor the polynomial or state that the polynomial is prime.10x3 - 31x2 + 15x
A. x2(2x - 5)(5x - 3) B. x(2x - 5)(5x - 3) C. x(5x - 5)(2x - 3) D. (2x2 - 5)(5x - 3)
Mathematics
Write the fraction as a decimal.
A. 0.04 B. 0.4 C. 0.004 D. 4.0
Mathematics
Find the area of the parallelogram.P1 (0, 0, 0), P2 (4, 2, 1), P3 (-2, 3, 1)
A. 
B. 
C. 
D. 
Mathematics
Perform the computation, working solely in the given base.
?
?
A.
B.
C.
D.
E.
Mathematics