Chapter 4: Problem 10
Express the equation in logarithmic form. (a) \(10^{3}=1000\) (b) \(81^{1 / 2}=9\)
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Chapter 4: Problem 10
Express the equation in logarithmic form. (a) \(10^{3}=1000\) (b) \(81^{1 / 2}=9\)
These are the key concepts you need to understand to accurately answer the question.
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Use the Laws of Logarithms to combine the $$2\left(\log _{5} x+2 \log _{5} y-3 \log _{5} z\right)$$
A 50 -gallon barrel is filled completely with pure water. Salt water with a concentration of 0.3 Ib/gal is then pumped into the barrel, and the resulting mixture overflows at the same rate. The amount of salt in the barrel at time \(t\) is given by $$ Q(t)=15\left(1-e^{-0.04 t}\right) $$ where \(t\) is measured in minutes and \(Q(t)\) is measured in pounds. (a) How much salt is in the barrel after 5 min? (b) How much salt is in the barrel after 10 min? (c) Draw a graph of the function \(Q(t)\) (d) Use the graph in part (c) to determine the value that the amount of salt in the barrel approaches as \(t\) becomes large. Is this what you would expect? (IMAGES CANNOT COPY) $$Q(t)=15\left(1-e^{-0.04 t}\right)$$
Use the Laws of Logarithms to combine the $$\log _{2} A+\log _{2} B-2 \log _{2} C$$
Use the Laws of Logarithms to combine the $$\log _{5}\left(x^{2}-1\right)-\log _{5}(x-1)$$
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