Find a formula for the expression. Use sigma notation.
n
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve.A signal is made by placing 3 flags, one above the other, on a flag pole. If there are 6 different flags available, how many possible signals can be flown?
A. 120 B. 18 C. 20 D. 216
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Specify the domain of the function.f(x) = 
A. x ? 64 B. All real numbers C. x ? 8, x ? -8 D. x > 64
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Multiply and simplify.
? 
A. 
B. 
C. 
D. 120xy
Mathematics