Solve the problem.The following data represent the marital status of females 18 years and older in a certain U.S. city. 
Determine the number of females 18 years old and older who are married or widowed.
A. 416,000
B. 358,000
C. 303,000
D. 361,000
Answer: D
Mathematics
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Find the curvature of the space curve.r(t) = (9 t sin t + 9 cos t)i + 9j + (9t cos t - 9 sin t)k
A. ? = - 
B. ? = 
C. ? = 9t
D. ? = 
Mathematics
Evaluate.log51
A. x = 5
B. x = 
C. x = 1
D. x = 0
Mathematics
Find the median of the data set.
Use the following information to answer questions 2-10. 24 students in an engineering class were asked to record the number of hours spent in a lab during a week. The results are listed below. 3, 10, 21, 14, 8, 5, 1, 4, 13, 7, 9, 6, 11, 10, 6, 7, 12, 16, 1 , 7, 14, 1, 11, 8
Mathematics
Solve the equation.37x = 3
A. 1
B. 7
C. 
D. 3
Mathematics