Find the domain of the function.f(x) = log 
A. (-9, 5)
B. (-?, -9)
C. (5, ?)
D. (-?, -9) ? (5, ?)
Answer: D
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Provide an appropriate response.What is the difference between ln a and log a?
What will be an ideal response?
Find the real solutions of the equation.x2 + 5x - 
= 12
A. {
, 
}
B. {5}
C. {3}
D. {25, -25}
Solve the problem.A man earned $3500 the first year he worked. If he received a raise of $600 at the end of each year, what was his salary during the 15th year?
A. $8400 B. $12,500 C. $3500 D. $11,900
The lifetime of a disposable water filter is normally distributed with mean ? = 38 gal and standard deviation ? = 6 gal. What is the probability that a filter selected at random will last from 47 gal to 51.5 gal? Round your answer to three decimal places.
a. 0.433 b. 0.055 c. 0.921 d. 0.945 e. 0.488