Calculus: Early Transcendentals and MyLab Math with Pearson eText -- Title-Specific Access Card Package (3rd Edition) (Briggs, Cochran, Gillett & Schulz, Calculus Series)
3rd Edition
ISBN: 9780134995991
Author: William L. Briggs, Lyle Cochran, Bernard Gillett, Eric Schulz
Publisher: PEARSON
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Chapter 7.2, Problem 27E
Designing exponential decay functions Devise an exponential decay function that fits the following data; then answer the accompanying questions. Be sure to identify the reference point (t = 0) and units of time.
Crime rate The homicide rate decreases at a rate of 3%/yr in a city that had 800 homicides/yr in 2018. At this rate, when will the homicide rate reach 600 homicides/yr?
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Students have asked these similar questions
Suppose an oil spill covers a circular area and the radius, r, increases according to the graph shown below where t
represents the number of minutes since the spill was first observed.
Radius (feet)
80
70
60
50
40
30
20
10
0
r
0 10 20 30 40 50 60 70 80 90
Time (minutes)
(a) How large is the circular area of the spill 30 minutes after it was first observed? Give your answer in terms of π.
square feet
(b) If the cost to clean the oil spill is proportional to the square of the diameter of the spill, express the cost, C, as a
function of the radius of the spill, r. Use a lower case k as the proportionality constant.
C(r) =
(c) Which of the following expressions could be used to represent the amount of time it took for the radius of the spill to
increase from 20 feet to 60 feet?
r(60) - r(20)
Or¹(80-30)
r(80) - r(30)
r-1(80) - r−1(30)
r-1(60) - r¹(20)
6. Graph the function f(x)=log3x. Label three points on the graph (one should be the intercept) with
corresponding ordered pairs and label the asymptote with its equation. Write the domain and range of the function
in interval notation. Make your graph big enough to see all important features.
Find the average value gave of the function g on the given interval.
gave =
g(x) = 8√√x, [8,64]
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Chapter 7 Solutions
Calculus: Early Transcendentals and MyLab Math with Pearson eText -- Title-Specific Access Card Package (3rd Edition) (Briggs, Cochran, Gillett & Schulz, Calculus Series)
Ch. 7.1 - What is the domain of ln |x|?Ch. 7.1 - Simplify e ln 2x, ln (e2x), e2 ln x, and ln (2ex)Ch. 7.1 - What is the slope of the curve y = ex at x= ln 2?...Ch. 7.1 - Verify that the derivative and integral results...Ch. 7.1 - Prob. 1ECh. 7.1 - Prob. 2ECh. 7.1 - Evaluate 4xdx.Ch. 7.1 - What is the inverse function of ln x, and what are...Ch. 7.1 - Express 3x, x, and xsin x using the base e.Ch. 7.1 - Evaluate ddx(3x).
Ch. 7.1 - Derivatives Evaluate the following derivatives...Ch. 7.1 - Derivatives with ln x Evaluate the following...Ch. 7.1 - Derivatives with ln x Evaluate the following...Ch. 7.1 - Derivatives with ln x Evaluate the following...Ch. 7.1 - Derivatives with ln x Evaluate the following...Ch. 7.1 - Derivatives with ln x Evaluate the following...Ch. 7.1 - Derivatives Evaluate the derivatives of the...Ch. 7.1 - Derivatives Evaluate the derivatives of the...Ch. 7.1 - Derivatives Evaluate the derivatives of the...Ch. 7.1 - Derivatives Evaluate the derivatives of the...Ch. 7.1 - Derivatives Evaluate the derivatives of the...Ch. 7.1 - Derivatives Evaluate the derivatives of the...Ch. 7.1 - Derivatives Evaluate the derivatives of the...Ch. 7.1 - Derivatives Evaluate the derivatives of the...Ch. 7.1 - Miscellaneous derivatives Compute the following...Ch. 7.1 - Miscellaneous derivatives Compute the following...Ch. 7.1 - Miscellaneous derivatives Compute the following...Ch. 7.1 - Prob. 24ECh. 7.1 - Miscellaneous derivatives Compute the following...Ch. 7.1 - Miscellaneous derivatives Compute the following...Ch. 7.1 - Miscellaneous derivatives Compute the following...Ch. 7.1 - Miscellaneous derivatives Compute the following...Ch. 7.1 - Integrals with ln x Evaluate the following...Ch. 7.1 - Integrals Evaluate the following integrals....Ch. 7.1 - Integrals with ln x Evaluate the following...Ch. 7.1 - Integrals with ln x Evaluate the following...Ch. 7.1 - Integrals with ln x Evaluate the following...Ch. 7.1 - Integrals with ln x Evaluate the following...Ch. 7.1 - Integrals with ln x Evaluate the following...Ch. 7.1 - Integrals with ln x Evaluate the following...Ch. 7.1 - Integrals with ex Evaluate the following...Ch. 7.1 - Integrals with ex Evaluate the following...Ch. 7.1 - Integrals with ex Evaluate the following...Ch. 7.1 - Integrals with ex Evaluate the following...Ch. 7.1 - Integrals with ex Evaluate the following...Ch. 7.1 - Integrals with ex Evaluate the following...Ch. 7.1 - Integrals with general bases Evaluate the...Ch. 7.1 - Integrals with general bases Evaluate the...Ch. 7.1 - Integrals with general bases Evaluate the...Ch. 7.1 - Integrals with general bases Evaluate the...Ch. 7.1 - Integrals with general bases Evaluate the...Ch. 7.1 - Integrals with general bases Evaluate the...Ch. 7.1 - Integrals Evaluate the following integrals....Ch. 7.1 - Miscellaneous integrals Evaluate the following...Ch. 7.1 - Miscellaneous integrals Evaluate the following...Ch. 7.1 - Miscellaneous integrals Evaluate the following...Ch. 7.1 - Miscellaneous integrals Evaluate the following...Ch. 7.1 - Miscellaneous integrals Evaluate the following...Ch. 7.1 - Miscellaneous integrals Evaluate the following...Ch. 7.1 - Miscellaneous integrals Evaluate the following...Ch. 7.1 - Miscellaneous integrals Evaluate the following...Ch. 7.1 - Miscellaneous integrals Evaluate the following...Ch. 7.1 - Miscellaneous integrals Evaluate the following...Ch. 7.1 - Integrals Evaluate the following integrals....Ch. 7.1 - Integrals Evaluate the following integrals....Ch. 7.1 - Miscellaneous integrals Evaluate the following...Ch. 7.1 - Calculator limits Use a calculator to make a table...Ch. 7.1 - Calculator limits Use a calculator to make a table...Ch. 7.1 - Calculator limits Use a calculator to make a table...Ch. 7.1 - Calculator limits Use a calculator to make a table...Ch. 7.1 - Prob. 67ECh. 7.1 - Prob. 68ECh. 7.1 - Prob. 69ECh. 7.1 - Prob. 70ECh. 7.1 - Prob. 71ECh. 7.1 - Prob. 72ECh. 7.1 - Prob. 73ECh. 7.1 - Prob. 74ECh. 7.1 - Prob. 75ECh. 7.1 - Prob. 76ECh. 7.1 - Harmonic sum In Chapter 10, we will encounter the...Ch. 7.1 - Probability as an integral Two points P and Q are...Ch. 7.2 - Population A increases at a constant rate of...Ch. 7.2 - Verify that the time needed for y(t) = y0ekt. to...Ch. 7.2 - Assume y() 100e0.005, 3y (exactly) what...Ch. 7.2 - If a quantity decreases by a factor of 8 every 30...Ch. 7.2 - In terms of relative growth rate, what is the...Ch. 7.2 - Prob. 2ECh. 7.2 - Prob. 3ECh. 7.2 - Prob. 4ECh. 7.2 - Prob. 5ECh. 7.2 - Prob. 6ECh. 7.2 - Suppose a quantity described by the function y(t)...Ch. 7.2 - Suppose a quantity is described by the function...Ch. 7.2 - Give two examples of processes that are modeled by...Ch. 7.2 - Give two examples of processes that are modeled by...Ch. 7.2 - Because of the absence of predators, the number of...Ch. 7.2 - After the introduction of foxes on an island, the...Ch. 7.2 - Absolute and relative growth rates Two functions f...Ch. 7.2 - Absolute and relative growth rates Two functions f...Ch. 7.2 - Designing exponential growth functions Complete...Ch. 7.2 - Designing exponential growth functions Complete...Ch. 7.2 - Designing exponential growth functions Complete...Ch. 7.2 - Designing exponential growth functions Complete...Ch. 7.2 - Designing exponential growth functions Complete...Ch. 7.2 - Designing exponential growth functions Complete...Ch. 7.2 - Determining APY Suppose 1000 is deposited in a...Ch. 7.2 - Tortoise growth In a study conducted at University...Ch. 7.2 - Projection sensitivity According to the 2014...Ch. 7.2 - Energy consumption On the first day of the year (t...Ch. 7.2 - Population of Texas Texas was the third fastest...Ch. 7.2 - Oil consumption Starting in 2018 (t = 0), the rate...Ch. 7.2 - Designing exponential decay functions Devise an...Ch. 7.2 - Designing exponential decay functions Devise an...Ch. 7.2 - Designing exponential decay functions Devise an...Ch. 7.2 - Designing exponential decay functions Devise an...Ch. 7.2 - Population of West Virginia The population of West...Ch. 7.2 - Prob. 32ECh. 7.2 - Atmospheric pressure The pressure of Earths...Ch. 7.2 - Carbon dating The half-life of C-14 is about 5730...Ch. 7.2 - Uranium dating Uranium-238 (U-238) has a half-life...Ch. 7.2 - Radioiodine treatment Roughly 12,000 Americans are...Ch. 7.2 - Caffeine After an individual drinks a beverage...Ch. 7.2 - Caffeine After an individual drinks a beverage...Ch. 7.2 - Prob. 39ECh. 7.2 - Prob. 40ECh. 7.2 - Tumor growth Suppose the cells of a tumor are...Ch. 7.2 - Tripling time A quantity increases according to...Ch. 7.2 - Explain why or why not Determine whether the...Ch. 7.2 - A running model A model for the startup of a...Ch. 7.2 - Prob. 45ECh. 7.2 - Prob. 46ECh. 7.2 - A slowing race Starting at the same time and...Ch. 7.2 - Prob. 48ECh. 7.2 - Compounded inflation The U.S. government reports...Ch. 7.2 - Acceleration, velocity, position Suppose the...Ch. 7.2 - Air resistance (adapted from Putnam Exam, 1939) An...Ch. 7.2 - General relative growth rates Define the relative...Ch. 7.2 - Equivalent growth functions The same exponential...Ch. 7.2 - Geometric means A quantity grows exponentially...Ch. 7.2 - Constant doubling time Prove that the doubling...Ch. 7.3 - Use the definition of the hyperbolic sine to show...Ch. 7.3 - Explain why the graph of tanh x has the horizontal...Ch. 7.3 - Find both the derivative and indefinite integral...Ch. 7.3 - Prob. 4QCCh. 7.3 - Prob. 5QCCh. 7.3 - Prob. 6QCCh. 7.3 - Explain why longer waves travel faster than...Ch. 7.3 - State the definition of the hyperbolic cosine and...Ch. 7.3 - Sketch the graphs of y = cosh x, y sinh x, and y...Ch. 7.3 - What is the fundamental identity for hyperbolic...Ch. 7.3 - Prob. 4ECh. 7.3 - Express sinh1 x in terms of logarithms.Ch. 7.3 - Prob. 6ECh. 7.3 - Prob. 7ECh. 7.3 - On what interval is the formula d/dx (tanh1 x) =...Ch. 7.3 - Prob. 9ECh. 7.3 - Prob. 10ECh. 7.3 - Verifying identities Verify each identity using...Ch. 7.3 - Verifying identities Verify each identity using...Ch. 7.3 - Verifying identities Verify each identity using...Ch. 7.3 - Verifying identities Verify each identity using...Ch. 7.3 - Verifying identities Verify each identity using...Ch. 7.3 - Verifying identities Use the given identity to...Ch. 7.3 - Verifying identities Use the given identity to...Ch. 7.3 - Prob. 18ECh. 7.3 - Derivative formulas Derive the following...Ch. 7.3 - Derivative formulas Derive the following...Ch. 7.3 - Derivative formulas Derive the following...Ch. 7.3 - Derivatives Compute dy/dx for the following...Ch. 7.3 - Derivatives Compute dy/dx for the following...Ch. 7.3 - Derivatives Compute dy/dx for the following...Ch. 7.3 - Derivatives Compute dy/dx for the following...Ch. 7.3 - Derivatives Compute dy/dx for the following...Ch. 7.3 - Derivatives Compute dy/dx for the following...Ch. 7.3 - Derivatives Compute dy/dx for the following...Ch. 7.3 - Derivatives Compute dy/dx for the following...Ch. 7.3 - Prob. 30ECh. 7.3 - Derivatives Find the derivatives of the following...Ch. 7.3 - Derivatives Find the derivatives of the following...Ch. 7.3 - Derivatives Find the derivatives of the following...Ch. 7.3 - Derivatives Find the derivatives of the following...Ch. 7.3 - Prob. 35ECh. 7.3 - Prob. 36ECh. 7.3 - Indefinite integrals Determine each indefinite...Ch. 7.3 - Integrals Evaluate each integral. sech2wtanhwdwCh. 7.3 - Indefinite integrals Determine each indefinite...Ch. 7.3 - Indefinite integrals Determine each indefinite...Ch. 7.3 - Indefinite integrals Determine each indefinite...Ch. 7.3 - Indefinite integrals Determine each indefinite...Ch. 7.3 - Definite integrals Evaluate each definite...Ch. 7.3 - Integrals Evaluate each integral. 0ln2sech2xxdxCh. 7.3 - Definite integrals Evaluate each definite...Ch. 7.3 - Definite integrals Evaluate each definite...Ch. 7.3 - Indefinite integrals Determine the following...Ch. 7.3 - Integrals Evaluate each integral. 48.dxx216,x4Ch. 7.3 - Indefinite integrals Determine the following...Ch. 7.3 - Prob. 50ECh. 7.3 - Indefinite integrals Determine the following...Ch. 7.3 - Prob. 52ECh. 7.3 - Additional integrals Evaluate the following...Ch. 7.3 - Additional integrals Evaluate the following...Ch. 7.3 - Prob. 55ECh. 7.3 - Additional integrals Evaluate the following...Ch. 7.3 - Two ways Evaluate the following integrals two...Ch. 7.3 - Two ways Evaluate the following integrals two...Ch. 7.3 - Visual approximation a. Use a graphing utility to...Ch. 7.3 - Prob. 60ECh. 7.3 - Prob. 61ECh. 7.3 - Points of intersection and area a. Sketch the...Ch. 7.3 - Definite integrals Evaluate the following definite...Ch. 7.3 - Definite integrals Evaluate the following definite...Ch. 7.3 - Definite integrals Evaluate the following definite...Ch. 7.3 - Prob. 66ECh. 7.3 - Prob. 67ECh. 7.3 - Prob. 68ECh. 7.3 - Catenary arch The portion of the curve y=1716coshx...Ch. 7.3 - Length of a catenary Show that the arc length of...Ch. 7.3 - Power lines A power line is attached at the same...Ch. 7.3 - Sag angle Imagine a climber clipping onto the rope...Ch. 7.3 - Wavelength The velocity of a surface wave on the...Ch. 7.3 - Prob. 74ECh. 7.3 - Prob. 75ECh. 7.3 - Prob. 76ECh. 7.3 - Explain why or why not Determine whether the...Ch. 7.3 - Evaluating hyperbolic functions Use a calculator...Ch. 7.3 - Evaluating hyperbolic functions Evaluate each...Ch. 7.3 - Prob. 80ECh. 7.3 - Critical points Find the critical points of the...Ch. 7.3 - Critical points a. Show that the critical points...Ch. 7.3 - Points of inflection Find the x-coordinate of the...Ch. 7.3 - Prob. 84ECh. 7.3 - Area of region Find the area of the region bounded...Ch. 7.3 - Prob. 86ECh. 7.3 - LHpital loophole Explain why lHpitals Rule fails...Ch. 7.3 - Limits Use lHpitals Rule to evaluate the following...Ch. 7.3 - Limits Use lHpitals Rule to evaluate the following...Ch. 7.3 - Prob. 90ECh. 7.3 - Prob. 91ECh. 7.3 - Prob. 92ECh. 7.3 - Kiln design Find the volume interior to the...Ch. 7.3 - Prob. 94ECh. 7.3 - Falling body When an object falling from rest...Ch. 7.3 - Prob. 96ECh. 7.3 - Prob. 97ECh. 7.3 - Prob. 98ECh. 7.3 - Differential equations Hyperbolic functions are...Ch. 7.3 - Prob. 100ECh. 7.3 - Prob. 101ECh. 7.3 - Prob. 102ECh. 7.3 - Prob. 103ECh. 7.3 - Prob. 104ECh. 7.3 - Prob. 105ECh. 7.3 - Theorem 7.8 a. The definition of the inverse...Ch. 7.3 - Prob. 107ECh. 7.3 - Prob. 108ECh. 7.3 - Arc length Use the result of Exercise 108 to find...Ch. 7.3 - Prob. 110ECh. 7.3 - Prob. 111ECh. 7.3 - Definitions of hyperbolic sine and cosine Complete...Ch. 7 - Explain why or why not Determine whether the...Ch. 7 - Integrals Evaluate the following integrals. 56....Ch. 7 - Integrals Evaluate the following integrals. 57....Ch. 7 - Integrals Evaluate the following integrals. 58....Ch. 7 - Integrals Evaluate the following integrals. 59....Ch. 7 - Integrals Evaluate the following integrals. 60....Ch. 7 - Integrals Evaluate the following integrals. 61....Ch. 7 - Integrals Evaluate the following integrals. 62....Ch. 7 - Integrals Evaluate the following integrals. 63....Ch. 7 - Derivatives Find the derivatives of the following...Ch. 7 - Derivatives Find the derivatives of the following...Ch. 7 - Derivatives Find the derivatives of the following...Ch. 7 - Derivatives Find the derivatives of the following...Ch. 7 - Prob. 14RECh. 7 - Prob. 15RECh. 7 - Derivatives Find the derivatives of the following...Ch. 7 - Prob. 17RECh. 7 - Prob. 18RECh. 7 - Prob. 19RECh. 7 - Population growth The population of a large city...Ch. 7 - Caffeine An adult consumes an espresso containing...Ch. 7 - Two cups of coffee A college student consumed two...Ch. 7 - Moores Law In 1965, Gordon Moore observed that the...Ch. 7 - Radioactive decay The mass of radioactive material...Ch. 7 - Population growth Growing from an initial...Ch. 7 - Prob. 26RECh. 7 - Prob. 27RECh. 7 - Curve sketching Use the graphing techniques of...Ch. 7 - Prob. 29RECh. 7 - Prob. 30RECh. 7 - Linear approximation Find the linear approximation...Ch. 7 - Limit Evaluate limx(tanhx)x.Ch. 7 - Derivatives of hyperbolic functions Compute the...Ch. 7 - Arc length Find the arc length of the curve y = ln...
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