Solve the problem.A freight train leaves a station traveling at 32 km/h. Two hours later, a passenger train leaves the same station traveling in the same direction at 52 km/h. How long does it takes the passenger train to catch up to the freight train?
A. 3.2 hr
B. 2.2 hr
C. 4.2 hr
D. 5.2 hr
Answer: A
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Translate the percent problem to a proportion using x for the unknown value. Do not solve the proportion.43 is 74% of what?
A. 
= 
B. 
= 
C. 
= 
D. 
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A die is rolled five times and the number of fours that come up is tallied. Find the probability of getting the given result.Exactly zero fours
A. 0.424 B. 0.161 C. 0.402 D. 0.0001
Use a Venn diagram to answer the question.At East Zone University (EZU) there are 896 students taking College Algebra or Calculus. 520 are taking College Algebra, 407 are taking Calculus, and 31 are taking both College Algebra and Calculus. How many are taking Calculus but not Algebra?
A. 865 B. 489 C. 376 D. 458
Use a graphing utility to graph the polar equation.r = 
A. 
B. 
C. 
D. 