Find the total area of the region between the curve and the x-axis.y = -x2 + 9; 0 ? x ? 5
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Simplify.
A. 13 B. 84 C. 14 D. Not a real number
Mathematics
Solve the problem.There are 3 cards in a hat; one is a king, one is a queen, and one is an ace. Two cards are to be selected at random without replacement. Using a tree diagram , obtain the sample space for the experiment. Then, find the probability that a king and a queen are selected.
A. 
B. 0
C. 
D. 
Mathematics
Find the exact value under the given conditions.Given sin u = 
, with u in quadrant II, and cos v = 
, with v in quadrant I. Find sin (u - v).
A. 
B. 
C. 
D. 
Mathematics
Translate to a proportion and solve. Round to the nearest hundredth, if necessary.21 is what percent of 50?
A. 0.42% B. 4200% C. 4.2% D. 42%
Mathematics