Add.(-9x2y - xy) + (3x2y + 8xy)
A. -6x2y + 9xy
B. 12x2y + 9xy
C. 12x2y + 7xy
D. -6x2y + 7xy
Answer: D
Mathematics
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Solve.6(3x - 0.3) = 5x - 1.8
A. -0.115 B. 0.277 C. 13 D. 0
Mathematics
Solve.5x - 6 = 27
A. x = - 
B. x = 
C. x = - 
D. x = 
Mathematics
Perform the conversion.0.95 kL = ___ L
A. 950 B. 0.0095 C. 95 D. 0.00095
Mathematics
Solve the problem.Police use the formula s = 
to estimate the speed s of a car in miles per hour, where d is the distance in feet that the car skidded and f is the coefficient of friction. If the coefficient of friction on a certain gravel road is 0.26 and a car skidded 330 feet, find the speed of the car, to the nearest mile per hour.
A. 278 mph B. 2574 mph C. 51 mph D. 99 mph
Mathematics