Chapter 3: Problem 68
Condense the expression to the logarithm of a single quantity. $$\log _{5} 8-\log _{5} t$$
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Chapter 3: Problem 68
Condense the expression to the logarithm of a single quantity. $$\log _{5} 8-\log _{5} t$$
These are the key concepts you need to understand to accurately answer the question.
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Is it possible for a logarithmic equation to have more than one extraneous solution? Explain.
Find the domain, \(x\) -intercept, and vertical asymptote of the logarithmic function and sketch its graph. $$g(x)=\ln (-x)$$
The management at a plastics factory has found that the maximum number of units a worker can produce in a day is \(30 .\) The learning curve for the number \(N\) of units produced per day after a new employee has worked \(t\) days is modeled by \(N=30\left(1-e^{k t}\right) .\) After 20 days on the job, a new employee produces 19 units. (a) Find the learning curve for this employee (first, find the value of \(k\) ). (b) How many days should pass before this employee is producing 25 units per day?
Let \(f(x)=\log _{a} x\) and \(g(x)=a^{x},\) where \(a>1\) (a) Let \(a=1.2\) and use a graphing utility to graph the two functions in the same viewing window. What do you observe? Approximate any points of intersection of the two graphs. (b) Determine the value(s) of \(a\) for which the two graphs have one point of intersection. (c) Determine the value(s) of \(a\) for which the two graphs have two points of intersection.
Assuming that the annual rate of inflation averages \(4 \%\) over the next 10 years, the approximate costs \(C\) of goods or services during any year in that decade will be modeled by \(C(t)=P(1.04)^{t},\) where \(t\) is the time in years and \(P\) is the present cost. The price of an oil change for your car is presently 23.95 dollar. Estimate the price 10 years from now.
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