Use a system of linear equations to solve the problem.Two cars leave a city and head in the same direction. After 6 hours, the faster car is 42 miles ahead of the slower car. The slower car has traveled 270 miles. Find the speeds of the two cars.
A. 47 mph and 54 mph
B. 70 mph and 77 mph
C. 45 mph and 52 mph
D. 38 mph and 45 mph
Answer: C
Mathematics
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Find the volume of the solid generated by revolving the shaded region about the given axis.About the x-axis
A. 
?
B. 
?
C. 
?
D. 
?
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Determine the order of integration and then evaluate the integral.
A. e49 - 
B. 
C. e49 - 1
D. 7e49 - 350
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Provide an appropriate response.The amount of federal income tax to be withheld from employee's paychecks can be calculated by:
A. only by the percentage method B. the percentage-bracket method C. only by the wage-bracket method D. either the percentage method or the wage-bracket table method
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Write the length of the line segment in lowest terms.
A. 
in.
B. 
in.
C. 
in.
D. 
in.
Mathematics