Exam 4: Exponential and Logarithmic Functions
Exam 1: Functions, graphs, and Limits427 Questions
Exam 2: Differentiation84 Questions
Exam 3: Applications of the Derivative122 Questions
Exam 4: Exponential and Logarithmic Functions122 Questions
Exam 5: Integration and Its Applications88 Questions
Exam 6: Techniques of Integration46 Questions
Exam 7: Functions of Several Variables113 Questions
Exam 8: Trigonometric Functions60 Questions
Exam 9: Probability and Calculus36 Questions
Exam 10: Series and Taylor Polynomials104 Questions
Exam 11: Differential Equations77 Questions
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Write the equation of the line tangent to the curve
at the point (2,1).

(Multiple Choice)
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The relationship between the number of decibels β and the intensity of a sound I in watts per square centimeter is given by
Find the rate of change in the number of decibels when the intensity is
watt per square centimeter.Round your answer to the nearest decibel.


(Multiple Choice)
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Suppose that the annual rate of inflation averages 4% over the next 10 years.With this rate of inflation,the approximate cost C of goods or services during any year in that decade will be given by
,
where t is time in years and P is the present cost.If the price of an oil change for your car is presently $25.95,estimate the price 10 years from now.Round your answer to two decimal places.


(Multiple Choice)
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Use the given information to write an exponential equation for y.Does the function represent exponential growth or exponential decay?
,when 


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A survey of high school seniors from a certain school district who took the SAT has determined that the mean score on the mathematics portion was 500 with a standard deviation of 15.5.Assuming the data can be modeled by a normal probability density function,find a model for these data.
(Multiple Choice)
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The average time between incoming calls at a switchboard is 3 minutes.If a call has just come in,the probability that the next call will come within the next t minutes is
Find the probability that the next call will come within the next
minute.Round your answer to two decimal places.


(Multiple Choice)
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Solve the exponential equation.Give the answer correct to 3 decimal places.

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Use a calculator to evaluate the logarithm
Round your answer to three decimal places.

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Use the properties of exponents to simplify the expression

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