Divide and simplify. Assume that all variables represent positive values.
A. 
B. 
C. 5
D. 2
Answer: D
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Find the mode for each data set.$97, $44, $32, $44, $29, $97
A. No mode B. $97 C. $44 D. $97 and $44
Solve the problem.Find the length of the arc intercepted by a central angle of 
in a circle of radius 
Round to two decimal places, if necessary.
A. 21.26 ft B. 0.05 ft C. 10.59 ft D. 606.5 ft
Determine whether the equation defines y as a function of x. x2 - 5y2 = 1
A. function B. not a function
Solve the problem.Dmitri needs 7 liters of a 15% solution of sulfuric acid for a research project in molecular biology. He has two supplies of sulfuric acid solution: one is an unlimited supply of the 7% solution and the other an unlimited supply of the 21% solution. How many liters of each solution should Dmitri use?
A. 3 L of 7% solution; 4 L of 21% solution B. 4 L of 7% solution; 3 L of 21% solution C. 2.5 L of 7% solution; 4.5 L of 21% solution D. 3.5 L of 7% solution; 3.5 L of 21% solution