Simplify by writing the expression with positive exponents. Assume that all variables represent nonzero real numbers.
A. p-9
B. 
C. p9
D. p-5
Answer: C
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Find the mean.Following is a list of the number of bags lost for the past seven months at an airport. Find the mean number of bags lost. Round to the nearest whole number when necessary. 16 bags src="https://sciemce.com/media/4/ppg__2720711191401__f1q209g6.jpg" alt="" style="vertical-align: -4.0px;" />7 bags
A. 8 bags
B. 7 bags
C. 14 bags
D. 9 bags
13 bags
6 bags
14 bags
5 bags
4 bags
Perform the operation and give the answer as a fraction in lowest terms.
÷ 
A. - 
B. 
C. 
D. 
Find absolute maximum and minimum values of the function, if they exist, over the indicated interval. Where no interval is specified, use the real line. List your answers in terms of ordered pairs.
Calculate the unit vector u = (cos ?)i + (sin ?)j for the given direction angle.? = 
A. 
i + 
j
B. 
i + 
j
C. 
i + 
j
D. 
i - 
j