Find the linearization L(x) of f(x) at x = a.f(x) = 
, a = 0
A. L(x) = 
x - 
B. L(x) = - 
x - 
C. L(x) = - 
x + 
D. L(x) = 
x + 
Answer: B
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Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.log6
A. 
B. log67 - log65
C. log67 + log65
D. log65 - log67
Determine which elementary row operation(s) applied to the first matrix will yield the second matrix.
, 
What will be an ideal response?
Solve the problem.In a Psychology class, the students were tested at the end of the course on a final exam. Then they were retested with an equivalent test at subsequent time intervals. Their average scores after t months are given in the table.
Using a graphing utility, fit a logarithmic function y = a + b ln x to the data. Using the function you found, estimate how long will it take for the test scores to fall below 84%. Express your answer to the nearest month.
A. 20 months B. 8 months C. 12 months D. 10 months
Find the domain of the function. ? f(x) = 2x2 + 4x - 5 ?
A. All real numbers x such that x> 0 B. All real numbers x C. All real numbers x such that x< 0 D. Non-negative real numbers x E. Non-negative real numbers x except x = 0