Exam 6: Exponential and Logarithmic Functions

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The function f is one-to-one. Find its inverse. -The function f is one-to-one. Find its inverse. -

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Write the word or phrase that best completes each statement or answers the question. -If 9x = 3,what does Write the word or phrase that best completes each statement or answers the question. -If 9x = 3,what does   equal? equal?

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Find functions f and g so that f ∘ g = H. -H(x)= ∣ Find functions f and g so that f ∘ g = H. -H(x)= ∣

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Find the exact value of the logarithmic expression. -Find the exact value of the logarithmic expression. -

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Solve the problem. -A city is growing at the rate of 0.3% annually. If there were 4,466,000 residents in the city in 1,995, find howmany (to the nearest ten-thousand)were living in that city in 2000. Use Solve the problem. -A city is growing at the rate of 0.3% annually. If there were 4,466,000 residents in the city in 1,995, find howmany (to the nearest ten-thousand)were living in that city in 2000. Use

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For the given functions f and g, find the requested composite function value. -For the given functions f and g, find the requested composite function value. -  , g(x)= 15x - 8; Find (f ∘ g)(7). , g(x)= 15x - 8; Find (f ∘ g)(7).

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Change the logarithmic expression to an equivalent expression involving an exponent. -Change the logarithmic expression to an equivalent expression involving an exponent. -

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Graph the function. -Graph the function. -

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Decide whether or not the functions are inverses of each other. -Decide whether or not the functions are inverses of each other. -

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Write the word or phrase that best completes each statement or answers the question. -The volume V (in cubic inches)of a cylindrical pipe with length 12 inches is given by V Write the word or phrase that best completes each statement or answers the question. -The volume V (in cubic inches)of a cylindrical pipe with length 12 inches is given by V   where ris the radius of the piston (in inches). If the radius is increasing with time t (in minutes)according to theformula   find the volume V of the pipe as a function of the time t. where ris the radius of the piston (in inches). If the radius is increasing with time t (in minutes)according to theformula Write the word or phrase that best completes each statement or answers the question. -The volume V (in cubic inches)of a cylindrical pipe with length 12 inches is given by V   where ris the radius of the piston (in inches). If the radius is increasing with time t (in minutes)according to theformula   find the volume V of the pipe as a function of the time t. find the volume V of the pipe as a function of the time t.

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Write the word or phrase that best completes each statement or answers the question. Solve the problem. -If f(x)= Write the word or phrase that best completes each statement or answers the question. Solve the problem. -If f(x)=   and g(x)= -1 + 5x, find (f ∘g)(x)and find the domain of (f ∘ g)(x). and g(x)= -1 + 5x, find (f ∘g)(x)and find the domain of (f ∘ g)(x).

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For the given functions f and g, find the requested composite function value. -f(x)= 7x + 8, g(x)= For the given functions f and g, find the requested composite function value. -f(x)= 7x + 8, g(x)=   Find (g ∘ f)(3). Find (g ∘ f)(3).

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For the given functions f and g, find the requested composite function. -f(x)= For the given functions f and g, find the requested composite function. -f(x)=   g(x)= 8x - 12; Find (f ∘ g)(x). g(x)= 8x - 12; Find (f ∘ g)(x).

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Write the word or phrase that best completes each statement or answers the question. -A grocery store normally sells 6 jars of caviar per week. Use the Poisson Distribution Write the word or phrase that best completes each statement or answers the question. -A grocery store normally sells 6 jars of caviar per week. Use the Poisson Distribution   to findthe probability (to three decimals)of selling 9 jars in a week. (   = x ∙ (x - 1)∙ (x - 2)∙ ... ∙ (3)(2)(1)). to findthe probability (to three decimals)of selling 9 jars in a week. ( Write the word or phrase that best completes each statement or answers the question. -A grocery store normally sells 6 jars of caviar per week. Use the Poisson Distribution   to findthe probability (to three decimals)of selling 9 jars in a week. (   = x ∙ (x - 1)∙ (x - 2)∙ ... ∙ (3)(2)(1)). = x ∙ (x - 1)∙ (x - 2)∙ ... ∙ (3)(2)(1)).

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Solve the problem. -The population P of a predator mammal depends upon the number x of a smaller animal that is itsprimary food source. The population s of the smaller animal depends upon the amount a of a certain plantthat is its primary food source. If Solve the problem. -The population P of a predator mammal depends upon the number x of a smaller animal that is itsprimary food source. The population s of the smaller animal depends upon the amount a of a certain plantthat is its primary food source. If   and   , what is the relationship between thepredator mammal and the plant food source? and Solve the problem. -The population P of a predator mammal depends upon the number x of a smaller animal that is itsprimary food source. The population s of the smaller animal depends upon the amount a of a certain plantthat is its primary food source. If   and   , what is the relationship between thepredator mammal and the plant food source? , what is the relationship between thepredator mammal and the plant food source?

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Determine i)the domain of the function, ii)the range of the function, iii)the domain of the inverse, and iv)the range of the inverse. -Determine i)the domain of the function, ii)the range of the function, iii)the domain of the inverse, and iv)the range of the inverse. -

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The function f is one-to-one. Find its inverse. -f(x)= 4x

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Approximate the value using a calculator. Express answer rounded to three decimal places. -Approximate the value using a calculator. Express answer rounded to three decimal places. -

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Find the domain of the composite function f ∘ g. -f(x)= Find the domain of the composite function f ∘ g. -f(x)=   ; g(x)=  ; g(x)= Find the domain of the composite function f ∘ g. -f(x)=   ; g(x)=

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Write the word or phrase that best completes each statement or answers the question. Solve the problem. -The profit P for selling x items is given by the equation Write the word or phrase that best completes each statement or answers the question. Solve the problem. -The profit P for selling x items is given by the equation   Express the sales amount x as afunction of the profit P. Express the sales amount x as afunction of the profit P.

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