Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Find the quantity indicated.Suppose that y is varies directly with x. When x = 15, then 
Find y when 
A. 225 B. 342 C. 361 D. 324
Mathematics
Determine the values of x for which the radical expression is a real number. Express your answer as an inequality or write "all real numbers".
A. x ? -9 B. x ? 9 C. all real numbers D. x ? 0
Mathematics
Find the grade point average for the following student. Assume A = 4, B = 3, C = 2, D = 1, and F = 0. Round answer to the nearest tenth.
A. 10.0 B. 3.5 C. 4.0 D. 2.3
Mathematics
Graph the function f by starting with the graph of y = x2 and using transformations (shifting, compressing, stretching, and/or reflection).f(x) = -x2 + 8x - 9 
A. 
B. 
C. 
D. 
Mathematics