Solve the problem.In a clinical study, 19 of the 380 subjects receiving a migraine medication developed side effects. What percentage developed side effects?
A. 15%
B. 7%
C. 5%
D. 4%
Answer: C
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Let A = {0, 2, 4, 6, 8, 10}, B = {0, 3, 6, 9}, C = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, and D = {0, 4, 8}. Determine if the statement is true or false.D ? D
A. True B. False
Solve the given applied problems involving variation.The crushing load of a square wooden post varies directly as the fourth power of its thickness and inversely as the square of its length. If a post src="https://sciemce.com/media/4/ppg__text0424191335__f1q22g5.jpg" alt="" style="vertical-align: -4.0px;" /> high?
A. 500 tons
B. 4000 tons
C. 10 tons
D. 900,000 tons
thick and 
high is crushed by a load of 
what is the crushing load of a post 
thick and
Solve the problem.A pair of six-sided dice are rolled. The observation is the number that comes up on each die. The event described by E: "the sum of the two numbers rolled is 2, 4, or 6" is
A. {(1, 1), (1, 3), (1, 5), (2, 2), (2, 4), (3, 1), (3, 3), (4, 2), (5, 1), (6, 2)}. B. {(1, 1), (1, 3), (1, 5), (2, 2), (2, 4), (3, 1), (3, 3), (4, 2), (5, 1)}. C. {(1, 1), (1, 3), (1, 5), (2, 2), (2, 4), (3, 1), (3, 3), (4, 2)}. D. {(1, 3), (1, 5), (2, 2), (2, 4), (3, 1), (3, 3), (4, 2), (5, 1)}. E. none of these
If r is a positive number and the point (x, y) is in the indicated quadrant, decide whether the given ratio is positive or negative.IV, 
A. Positive B. Negative