Evaluate the given binomial coefficient.
A. 231
B. 332,640
C. 2
D. 462
Answer: D
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Solve the problem.An electron has a 1.6 x 10-19 C negative charge. How much work is done in separating two electrons from 2.8 pm to 7.5 pm?
A. 5.2 x 10-17 N?m B. 11 x 10-16 N?m C. 5.7 x 10-39 N?m D. 2.5 x 10-17 N?m
Graph the inequality.-2x - 3y ? -6
A.
B.
C.
D.
Write a system of equations for the problem, and then solve the system.If a plane can travel 340 miles per hour with the wind and only 260 miles per hour against the wind, find the speed of the wind and the speed of the plane in still air.
A. Plane: 40 mph; wind: 300 mph B. Plane: 300 mph; wind: 40 mph C. Plane: 300 mph; wind: 50 mph D. Plane: 400 mph; wind: 40 mph
Find the perimeter. Use 3.14 for ?.
A. 50.13 in. B. 64.26 in. C. 55.26 in. D. 41.13 in.