Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Evaluate the given double integral by changing it to an iterated integral.
S is the region bounded by the x-axis, the line 
and the curve 
A. 10 B. 8 C. 9 D. 1
Mathematics
Multiply by first changing the decimal to a fraction. Multiply the fractions; then write the answer as a decimal.0.2 × 0.9
A. 1.8 B. 0.18 C. 0.0018 D. 0.018
Mathematics
Solve and graph.5x - 1 < 4 and x - 2 > -1
A. ?
B. (0, 1)
C. {1}
D. [0, 1]
Mathematics
Solve the problem.A bakery sold 52 pies for $4.17 each. What was the total amount of the sale?
A. $216.84 B. $217.94 C. $216.94 D. $206.94
Mathematics