Factor out the greatest common factor.19m2 - 20r3
A. m2(19 - 20m)
B. no common factor
C. 3(6m2 - 6r3)
D. 2(9m2 + 10r3)
Answer: B
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Solve the problem.You are driving along a highway at a steady 81 ft/sec when you see a deer ahead and slam on the brakes. What constant deceleration is required to stop your car in 
A. 32.32 ft/sec2 B. 0.06 ft/sec2 C. 16.16 ft/sec2 D. 8.08 ft/sec2
Solve the problem.A psychologist studying the effects of good nutrition on the behavior of rabbits feeds one group a combination of three foods, I, II, and III. Each of these foods contains three additives, A, B, and C, that are used in the study. The table below gives the percent of each additive that is present in each food. If the diet being used requires 19.1 g per day of A, 8.94 g of B, and 14.02 g of C, find the number of grams of food II that should be used each day. Let z represent the number of grams of food III.
A. 2.1z + 63 B. 128 - 3.2z C. 2.7z - 60 D. 1.8z + 54
Tell whether the relation is a function.
A. Function B. Not a function
Assume that two marbles are drawn without replacement from a box with 1 blue, 3 white, 2 green, and 2 red marbles. Find the probability of the indicated result.Both marbles are white.
A. 
B. 
C. 
D. 