Find the derivative of the function.y = ln (x - 6)
A. 
B. 
C. - 
D. 
Answer: B
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Evaluate the indicated function with the given information.Find the value of cos 
if sin ? = 
(0° < ? < 90°).
A. 
B. 
C. 
D. 
Solve the problem.A retired couple has $170,000 to invest to obtain annual income. They want some of it invested in safe Certificates of Deposit yielding 6%. The rest they want to invest in AA bonds yielding 11% per year. How much should they invest in each to realize exactly $16,700 per year?
A. $140,000 at 11% and $30,000 at 6% B. $120,000 at 6% and $50,000 at 11% C. $130,000 at 6% and $40,000 at 11% D. $130,000 at 11% and $40,000 at 6%
Solve the rational inequality and graph the solution set on a real number line. 
< 1
A. (-?, 2)
B. (-?, 2) ? (9, ?)
C. (-?, 2] ? [9, ?)
D. (2, 9)
Find the domain of the rational function.h(x) = 
A. {x|x ? 0, 1} B. {x|x ? -1, 1} C. {x|x ? -1, 1, -8} D. all real numbers