Find the median.5, 1, 26, 10, 21, 45, 36, 34
A. 26
B. 22.5
C. 21
D. 23.5
Answer: D
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Find the eccentricity of the hyperbola.Find the eccentricity of a hyperbola centered at the origin having a focus of 
and corresponding directrix 
A. 
B. 
C. 
D. 
Solve the problem.A loaf of bread is removed from an oven at 
and cooled in a room whose temperature is 
. If the bread cools to 
in 20 minutes, how much longer will it take the bread to cool to 
A. 18 min B. 6 min C. 26 min D. 7 min
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.log 
A. log (6x5
) - log (5(x + 2)2)
B. log 6 + log x5 + log (2 - x)1/3 - log 5 - log (x + 2)2
C. log 6 + 5log x + 
log (2 - x) - log 5 + 2log (x + 2)
D. log 6 + 5log x + 
log (2 - x) - log 5 - 2log (x + 2)
Use Descartes' Rule of Signs to determine the possible number of positive and negative real zeros for the function. Then, use a graph to determine the actual number of positive and negative real zeros.P(x) = x7 + x4 + x2 + x + 8
A. possible: 1 or 3 pos, 0 neg
actual: 1 pos, 0 neg
B. possible: 0 pos, 1 neg
actual: 0 pos, 1 neg
C. possible: 0 pos, 1 or 3 neg
actual: 0 pos, 1 neg
D. possible: 0 pos, 2 or 0 neg
actual: 1 pos, 0 neg