Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Answer: B
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The cost C, in dollars, of downloading 
tunes from an Internet music service is given by
.
Here a and b are constants. Solve this equation for n in order to express the number of tunes you can download as a function of the cost C.
?
A. 
B. 
C. 
D. There is no solution.
Provide an appropriate response.Consider the set of initials for your first name and your last name. How many possible sets of initials are there?
A. 676 B. 676 million C. 100 D. Infinite
Suppose that a nonlinear system is composed of equations whose graphs are those described, and the number of points of intersection of the two graphs is as given. Make a sketch satisfying these conditions.A parabola and a circle; three points
What will be an ideal response?
Find the domain and range of the function represented in the graph.
A. Domain: (0, 8); Range: (0, 8) B. Domain: [-8, 0]; Range: [0, 8) C. Domain: (0, 8]; Range: (-8, ?) D. Domain: [0, 8]; Range: [0, 8]