Solve the problem.Use the formula d = 
n2 - 
n to find the number of diagonals in a figure with the given number of sides.9 sides
A. 54
B. 7
C. 34
D. 27
Answer: D
Mathematics
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Determine whether the graph is the graph of a function.
A. Yes B. No
Mathematics
Evaluate the expression  figure 1.png)
(a) 13 (b) -15 (c) 0 (d) 15 (e) - 13
Mathematics
Perform the indicated operation. Simplify if possible.
+ 
A. 
B. 
C. 
D. 
Mathematics
Find the domain of f(x).f(x) = x3 - 8
A. {x? x is a real number and x ? -8}
B. {x? x is a real number and x ? 
}
C. ? the set of all real numbers
D. {x? x is a real number and x ? 8}
Mathematics