Use a truth table to determine whether the argument is valid.p ? q
~q
A. Valid
B. Invalid
Answer: B
Mathematics
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Find the probability.In a test for a certain disease, 180 out of 200 people test negative. Find the probability that a randomly chosen person tests positive.
A. 
B. 
C. 
D. 
Mathematics
Evaluate the definite integral.
dx
A. -18e2 B. 0 C. 18 D. -18
Mathematics
Name the polygons shown in the figure according to the number of sides. Which of them is a triangle?
A. Figure a B. Figure b C. Figure f D. Figure c E. Figure d F. Figure e
Mathematics
Find the sum.-16.6 + (-5.7)
A. -10.9 B. 22.3 C. 10.9 D. -22.3
Mathematics