Solve the problem.Given that P(A) = 0.39, P(B) = 0.46, and P(A ? B) = 0.71, find P(A ? B).
A. 0.14
B. 0.1794
C. 0.57
D. 0.85
Answer: A
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Find a formula for the expression. Use sigma notation.
n
A. 
B. 
C. 
D. 
Solve the problem.Sarah and Shakina are running in a 4-lap, 1 mile race. Shakina is exactly one lap behind at the moment when Sarah completes her second lap. If Sarah averages 0.17 miles per minute for her last two laps, what must Shakina's average speed be in order for her to just pull even with Sarah at the finish line?
A. 0.23 mi/min B. 0.11 mi/min C. 0.26 mi/min D. 0.34 mi/min
Use a Venn diagram to answer the question.At East Zone University (EZU) there are 784 students taking College Algebra or Calculus. 315 are taking College Algebra, 509 are taking Calculus, and 40 are taking both College Algebra and Calculus. How many are taking Algebra but not Calculus?
A. 744 B. 275 C. 469 D. 235
Solve the problem.The speed of a vehicle is inversely proportional to the time it takes to travel a fixed distance. If a vehicle travels a fixed distance at 45 miles per hour in 60 minutes, how fast must it travel to cover the same distance in 25 minutes?
A. 
mph
B. 108 mph
C. 
mph
D. 
mph