Solve the problem.The volume of a cylinder varies jointly as the square of the radius and the height. If the volume is 28? cubic inches when the radius is 2 inches and the height is 7 inches, find the volume when the radius is 14 inches and the height is 10 inches. Express the answer in terms of ?.
A. 1965 ? cubic inches
B. 1000 ? cubic inches
C. 1960 ? cubic inches
D. 1953 ? cubic inches
Answer: C
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Solve the problems.The president of a certain university makes three times as much money as one of the department heads. If the total of their salaries is $170,000, find each worker's salary.
A. president's salary = $85,000; department head's salary = $42,500 B. president's salary = $42,500; department head's salary = $127,500 C. president's salary = $12,750; department head's salary = $4,250 D. president's salary = $127,500; department head's salary = $42,500
Solve.The pitch P of a musical tone varies inversely as its wavelength W. One tone has a pitch of 479 vibrations per second and a wavelength of 8.8 ft. Find the wavelength of another tone that has a pitch of 492 vibrations per second.
A. 26,780.5 ft B. 0.000037 ft C. 0.12 ft D. 8.6 ft
Use the graph of a known basic function and horizontal shifts to sketch the function.y = (x + 5)2 
A. 
B. 
C. 
D. 
Write the first four terms of the sequence.an = (-1)n-1(8n - 3)
A. -5, 13, -21, -29 B. 5, -19, 21, -29 C. 5, -13, 21, -29 D. 5, 13, 21, 29