A joint variation is . If , and , find . Round your answer to two decimal places.

A. 48
B. 0.75
C. 1.3
D. 8
E. none of these


Answer: B

Mathematics

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Solve.A motorcycle traveling at 70 miles per hour overtakes a car traveling at 30 miles per hour that had a three-hour head start. How far from the starting point are the two vehicles?

A. 2 miles
B. 5 miles
C. 63 miles
D. 157 miles

Mathematics

Find the volume of the solid generated by revolving the region about the given axis. Use the shell or washer method.The region bounded by y = 5x - x2 and y = x about the y-axis

A. 64?
B. 32?
C. ?
D. ?

Mathematics

Use the check register find the ending balance.Mary Dunn had a balance of  in her checking account before writing three checks and making two deposits. On  she wrote check  to Dr. Crandal for  and check  to Express Framing for 

src="https://sciemce.com/media/4/ppg__10619192215__f1q3g6.jpg" alt="" style="vertical-align: -4.0px;" /> Then on  she made a  deposit, and wrote check  to Big Electronics for  On  she made a  check deposit. Record the checks and deposits in Mary's check register, and then find the ending balance.

A. $5522.15
B. $6164.52
C. $5828.55
D. $6020.01

Mathematics

Evaluate the expression. C()

A. 3.5 B. 5040 C. 7 D. 1440

Mathematics