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dietrich_harmon
Group Title
A scientist counts 35 bacteria present in a culture and finds that the number of bacteria triples each hour. The function y = 35 • 3x models the number of bacteria after x hours.
Graph the function. (You do not need to submit the graph).
Use the graph to estimate when there will be about 550 bacteria in the culture.
 2 years ago
 2 years ago
dietrich_harmon Group Title
A scientist counts 35 bacteria present in a culture and finds that the number of bacteria triples each hour. The function y = 35 • 3x models the number of bacteria after x hours. Graph the function. (You do not need to submit the graph). Use the graph to estimate when there will be about 550 bacteria in the culture.
 2 years ago
 2 years ago

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dietrich_harmon Group TitleBest ResponseYou've already chosen the best response.0
hello?
 2 years ago

ktnguyen Group TitleBest ResponseYou've already chosen the best response.0
About 2hrs and 20mins
 2 years ago

dietrich_harmon Group TitleBest ResponseYou've already chosen the best response.0
can u explain in a other way
 2 years ago

dietrich_harmon Group TitleBest ResponseYou've already chosen the best response.0
@ktnguyen
 2 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
the function should be \(A(x)=35\times 3^x\)
 2 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
solve the equation \[550=35\times 3^x\] by first dividing by 35 to get \[\frac{110}{7}=3^x\] then change of base to get \[x=\frac{\ln(\frac{110}{7})}{\ln(3)}\]
 2 years ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.1
i get about 2.5 so two and a half hours if you have not discussed logarithms yet, take out a calculator and try \(35\times 3^x\) with various values for \(x\) when you get to \(x=2.5\) you will see the result is about 550
 2 years ago

dietrich_harmon Group TitleBest ResponseYou've already chosen the best response.0
thank u thank u
 2 years ago
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