Use the rules of exponents to simplify the expression so that only positive exponents remain.
?
?
A. 
B. 
C. 
D. 
E. 
Answer: E
Mathematics
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A computer password consists of any five capital letters from the ordinary English alphabet (A through Z).How many different passwords start with the letter Z?
A. 264 B. 265 - 1 C. 254 D. 26 × 25 E. none of these
Mathematics
Use the fundamental identities to simplify the expression.
A. cot2? B. 1 C. sec2? D. csc2?
Mathematics
Add or subtract as indicated.- 
+ 
A. 
B. 
C. 0
D. 
Mathematics
Express the solution set of the inequality in interval notation.x ? 11
A. (11, ?) B. (-?, 11] C. (-?, 11) D. [11, ?)
Mathematics