Find the domain of f(x).f(x) = 
A. 
B. 
C. 
D. 
Answer: B
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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) = 8x5 - 8x4 + 5x3 - 3
A. possible: 1 or 3 pos, 0 neg
actual: 1 pos, 0 neg
B. possible: 0, 2, or 4 pos, 1 neg
actual: 0 pos, 1 neg
C. possible: 0 pos, 1 or 3 neg
actual: 0 pos, 1 neg
D. possible: 0 or 2 pos, 1 or 3 neg
actual: 0 pos, 1 neg
Graph the system of inequalities. Shade the region that represents the points of intersection.
A. 
B. 
C. 
D. 
An advertising agency has found that when it promotes a new product in a city of 350,000 people, the rate of change R of the number of people who are aware of the product is related to the number of people x who are aware of it and is given by 
, where 
and 
Graph this equation with a graphing utility. Based on this graph, is the rate of change increasing or decreasing?
?
A. increasing
B. decreasing
The circle graph shows the results of the student council presidential election and the percent of the vote each person received.
Find the ratio of Ted's votes to total votes cast.
A. 
B. 
C. 
D. 