Simplify the radical expression. Assume that all variables represent positive real numbers.
A. 
B. x
C. 
D. 
Answer: B
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Factor completely.25k3m - 80k2m2 + 64km3
A. km(5k - 8m)2 B. km(5k + 8m)2 C. Prime D. km(5k - 8m)(5k + 8m)
Multiply.(8a + 9c)(8a - 9c)
A. 64a2 - 81c2 B. 8a2 - 9c2 C. 64a2 + 144ac - 81c2 D. 64a2 - 144ac - 81c2
Solve the problem.The population, in millions, of a city t years after 1990 is given by 
Find the slope and y-intercept of the equation and explain what each signifies.
A. 3.3 million is the population of the city in 1990 and 0.09 million is the increase per year in the population . B. 3.3 million is the population of the city in 1990 and 0.09 million is the decrease per year in the population . C. 3.3 million is the population of the city in 1991 and 3.39 million is the population in 1992. D. 0.09 million is the population of the city in 1990 and 3.3 million is the increase per year in the population .
Find the distance d(P1, P2) between the points P1 and P2.P1 = (-3, -1); P2 = (5, 3)
A. 48
B. 4
C. 48
D. 4