Simplify the expression. Write the answer with positive exponents only. Assume that all variables represent positive real numbers.(x6y4)1/2
A. x12y4
B. x6y2
C. x3y2
D. x3y4
Answer: C
Mathematics
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Solve the problem.The polynomial 0.041h - 0.018A - 2.69 can be used to estimate the lung capacity, in liters, of a female with height h cm and age A years. Find the lung capacity of a 20-year-old woman who is 165 cm tall. Round to the nearest liter.
A. 10 liters B. 4 liters C. -5 liters D. 61 liters
Mathematics
What number should be added to complete the square of the expression?x2 - x
A. 4
B. 
C. 1
D. 
Mathematics
Solve the problem.How many 7-symbol codes can be formed using 3 different symbols? Repeated symbols are allowed.
A. 840 B. 210 C. 2187 D. 35
Mathematics
Match the correct graph to the given function. y = -(x + 5)2 + 4
A. 
B. 
C. 
D. 
Mathematics