Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Answer: A
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Solve the problem.Let f(n) = 
- 
. What is f(n) approximately equal to as n gets large? Hint: Compute various examples on your calculator.
A. 
B. 
C. 
D. 
Graph the function using its vertex, axis of symmetry, and intercepts.f(x) = x2 - 6x + 8 
A. vertex (3, -1)
intercepts (4, 0), (2, 0), (0, 8)
B. vertex (-3, 1)
intercepts (-4, 0), (- 2, 0), (0, -8)
C. vertex (3, 1)
intercepts (4, 0), (2, 0), (0, -8)
D. vertex (-3, -1)
intercepts (-4, 0), (- 2, 0), (0, 8)
The amounts A (in billions of dollars) donated to support higher education in the United States from 2000 through 2007 are shown in the table, where t represents the year, with t = 0 corresponding to 2000. Year, tAmount, A0 23.3 1 24.3 2 24 3 24 4 24.5 5 25.7 6 28.1 7 29.9 Use a graphing utility to select a correct a scatter plot of the above data.
A. ?
B. ?
C. ?
D. 
E. ?
Identify the independent variable and the dependent variable.Let I be a person's annual income (in dollars), and let T be the state taxes (in dollars) the person must pay.
A. independent: I; dependent, T B. independent: T; dependent, I