Solve.The cost of stainless steel tubing varies jointly as the length and the diameter of the tubing. If a 
length with diameter 2 inches costs $48.00 , how much will a 
length with diameter 
cost?
A. $485.30
B. $485.57
C. $480.00
D. $477.60
Answer: C
Mathematics
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Find all solutions to the following equation.
a. a = 7
b. 
c. 
d. x = 7i
e. 
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Simplify.
A. 2xy2
B. 2x2
C. 2xy
D. 2x
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Divide. 6620 ÷ 145
A. 45 R 95 B. 48 R 45 C. 40 R 95 D. 45
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Find the foci of the given hyperbola.6x2 - y2 - 72x + 4y + 116 = 0
A. (6 + 4
, 2), (6 - 4
, 2)
B. (2 + 4
, 6), (2 - 4
, 6)
C. (4
, 2), (- 4
, 2)
D. (4
, 0), (-4
, 0)
Mathematics