Multiply and simplify.510 ? 5-3
A. 510
B. 57
C. 54
D. 53
Answer: B
Mathematics
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Write an inequality involving the variable x that describes the set of numbers graphed.
A. 3 ? x ? 7 B. 3 ? x < 7 C. 3 < x < 7 D. 3 < x ? 7
Mathematics
Simplify the expression. Assume all variables represent positive real numbers.
A. 
B. 
C. 5
D. 5
Mathematics
Use De Moivre's theorem to simplify the expression. Write the answer in the form a + bi.
4
A. 
+ 
i
B. 
+ 
i
C. 81i
D. 
+ 
i
Mathematics
Simplify by writing the expression using only positive exponents.
A. 
B. 
C. 
D. 5a7b8
Mathematics