Convert the units.821 cm = m
A. 82,100 m
B. 8210 m
C. 82.10 m
D. 8.21 m
Answer: D
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State the period of the function and graph.sin 
A. Period 2?
B. Period 2?
C. Period 2?
D. Period 2?
Modeling Personal income Total personal income in the United States (in billions of dollars) for selected years from 1960 to 2002 is given in the following table.
Source: Bureau of Economic Analysis, U.S. Department of Commerce
?
These data can be modeled by an exponential function. Write the equation of this function, with x as the number of years past 1960.
If this model is accurate, what will be the total U.S. personal income in 2010? Round your answer to the nearest cent.
a. $12,024.38 billion
b. $12,277.11 billion
c. $12,295.14 billion
d. $18,466.61 billion
e. $12,383.65 billion
Use a graphing utility to graph the inequality.2x + y - 3 ? 0
A. 
B. 
C. 
D. 
Evaluate the polynomial or polynomial function for the given value of the variable.f(x) = -5x3 + 4x2 - 45, f(-2)
A. 1 B. -1 C. -13 D. 11