Write the expression using a single radical sign. Assume that all variables represent positive real numbers. Simplify the radicand if possible.
A. 3
B. 
C. 9 
D. 3 
Answer: D
Mathematics
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Write the word phrase in symbols, using x as the variable.14 less than two times a number
A. 
B. 2(x - 14)
C. 14 - 2x
D. 2x - 14
Mathematics
Divide and simplify.
÷ 
A. 
B. 
C. 
D. 7
Mathematics
Find the average.1.8, 8.7, 6.6, 2.4, 4.7
A. 6.050 B. 24.20 C. 4.84 D. 4.7
Mathematics
Evaluate f(-2), f(-1), f(0), f(1), and f(5) for the piecewise-defined function.
 figure 1.png)
Mathematics