Perform the indicated operation by hand.11 + 18.286
A. -7.286
B. 29.386
C. 7.286
D. 29.286
Answer: D
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Solve the problem by writing and using a system of linear equations.Two bikers start at opposite ends of a trail and bike toward each other. The trail is 225 miles long and they meet in 5 hours. If one biker is twice as fast as the other, find both biking speeds.
A. 13 mph, 26 mph B. 5 mph, 10 mph C. 112.5 mph, 225 mph D. 15 mph, 30 mph
Find the equation of the tangent plane to the given surface at the indicated point.ex sin(yz) - 5x = 0, (0, 3?, 3)
A. 5x - 1(y - 3?) - 3(z - 3) = 0 B. -5x + 3(y - 3?) + 3?(z - 3) = 0 C. -5x - 3(y - 3?) - 3?(z - 3) = 0 D. 5x - 3(y - 3?) = -3?(z - 3)
Graph the line.y = 0.5x + 2
A. 
B. 
C. 
D. 
Solve the problem.The population of a particular country was 23 million in 1983; in 1992, it was 31 million. Write an exponential growth function that describes the population of this country, in millions, t years after 1983. Round the growth rate to the nearest thousandth.
A. A =23e0.033t B. A = e0.033t C. A =23e0.033k D. A = 31e0.033t