Simplify the expression.
+ 
A. 
B. 
C. 11
D. 
Answer: D
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Solve the problem.The following table shows the population (in thousands) of Anytown, USA. YEAR POPULATION 1950 80 1960 95 1970 115 1980 150 1990 200 2000 265Use a graphing calculator to fit a quadratic function f(x) to the data. Use this equation to predict the population in the year 2007. Round your answer to the nearest thousand.
A. 316,000 B. 267,000 C. 345,000 D. 16,820,000
Rationalize the denominator and simplify. Assume all variables represent nonnegative real numbers.
A. 1
B. 11
C. 
D. 11
Verify the identity.sin x(sin x + sin 5x) = cos 2x (cos 2x - cos 4x)
What will be an ideal response?
Find the open intervals on which the function is increasing and decreasing. Identify the function's local and absolute extreme values, if any, saying where they occur.
A. increasing on (-1, 1); decreasing on (-6, -1) and (1, 6); absolute maximum at (1, 2); absolute minimum at (-1, -2) B. increasing on (-1, 1); decreasing on (-6, -1) and (1, 6); no absolute maximum; no absolute minimum C. increasing on (-1, 1); decreasing on (-6, 0); absolute maximum at (1, 2); absolute minimum at (-1, -2) D. increasing on (-1, 1); decreasing on (0, 6); absolute maximum at (1, 2); absolute minimum at (-1, -2)