Express in simplified form. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.The year y when sales were s million dollars for a particular electronics company can be modeled by the radical equation y = 1.2
- 6,where y = 1 represents 2001, and so on. Use the model to predict the sales for 2006 to the nearest tenth of a million.
A. $102.0 million B. $104.0 million C. $103.0 million D. $101.0 million
Find the conjugate of each complex number.-2 - 5j
A. -2 + 5j B. 2 + 5j C. 2 - 5j D. -5 - 2j
Find f(g(x)) and g(f(x)) and determine whether the pair of functions f and g are inverses of each other.f(x) = 
and g(x) = 4x - 2
A. inverses B. not inverses
Solve the problem.The population of a particular city is increasing at a rate proportional to its size. It follows the function 
where k is a constant and t is the time in years. If the current population is 26,000, in how many years is the population expected to be 65,000?
A. 55 yr B. 8 yr C. 3 yr D. 5 yr