Single Variable Calculus: Early Transcendentals, Books a la Carte, and MyLab Math with Pearson eText -- Title-Specific Access Card Package (3rd Edition)
3rd Edition
ISBN: 9780134996103
Author: William L. Briggs, Lyle Cochran, Bernard Gillett, Eric Schulz
Publisher: PEARSON
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Chapter 7.2, Problem 39E
LED lighting LED (light-emitting diode) bulbs are rapidly decreasing in cost, and they are more energy-efficient than standard incandescent light bulbs and CFL (compact fluorescent light) bulbs. By some estimates, LED bulbs last more than 40 times longer than incandescent bulbs and more than 8 times longer than CFL bulbs. Haitz’s law, which is explored in the following two exercises, predicts that over time, LED bulbs will exponentially increase In efficiency and exponentially decrease in cost.
39. Haitz’s law predicts that the cost per lumen of an LED bulb decreases by a factor of 10 every 10 years. This means that 10 years from now, the cost of an LED bulb will be 1/10 of its current cost. Predict the cost of a particular LED bulb in 2021 if it costs 4 dollars in 2018.
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Chapter 7 Solutions
Single Variable Calculus: Early Transcendentals, Books a la Carte, and MyLab Math with Pearson eText -- Title-Specific Access Card Package (3rd Edition)
Ch. 7.1 - What is the domain of ln |x|?Ch. 7.1 - Quick Check 2 Simplify e ln 2x, ln (e2x), e2 ln x,...Ch. 7.1 - Prob. 3QCCh. 7.1 - Prob. 4QCCh. 7.1 - Prob. 1ECh. 7.1 - Prob. 2ECh. 7.1 - Evaluate 4xdx.Ch. 7.1 - Prob. 4ECh. 7.1 - Express 3x, x, and xsin x using the base e.Ch. 7.1 - Prob. 6E
Ch. 7.1 - Derivatives Evaluate the following derivatives...Ch. 7.1 - Prob. 8ECh. 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 - Prob. 12ECh. 7.1 - Derivatives Evaluate the derivatives of the...Ch. 7.1 - Prob. 14ECh. 7.1 - Prob. 15ECh. 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 - Miscellaneous derivatives Compute the following...Ch. 7.1 - Miscellaneous derivatives Compute the following...Ch. 7.1 - Prob. 26ECh. 7.1 - Miscellaneous derivatives Compute the following...Ch. 7.1 - Prob. 28ECh. 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 - Prob. 32ECh. 7.1 - Integrals with ln x Evaluate the following...Ch. 7.1 - Prob. 34ECh. 7.1 - Integrals with ln x Evaluate the following...Ch. 7.1 - Prob. 36ECh. 7.1 - Integrals with ex Evaluate the following...Ch. 7.1 - Prob. 38ECh. 7.1 - Prob. 39ECh. 7.1 - Integrals with ex Evaluate the following...Ch. 7.1 - Integrals with ex Evaluate the following...Ch. 7.1 - Prob. 42ECh. 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 - Prob. 48ECh. 7.1 - Integrals Evaluate the following integrals....Ch. 7.1 - Miscellaneous integrals Evaluate the following...Ch. 7.1 - Prob. 51ECh. 7.1 - Prob. 52ECh. 7.1 - Miscellaneous integrals Evaluate the following...Ch. 7.1 - Prob. 54ECh. 7.1 - Miscellaneous integrals Evaluate the following...Ch. 7.1 - Prob. 56ECh. 7.1 - Miscellaneous integrals Evaluate the following...Ch. 7.1 - Miscellaneous integrals Evaluate the following...Ch. 7.1 - Prob. 59ECh. 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 - Prob. 63ECh. 7.1 - Calculator limits Use a calculator to make a table...Ch. 7.1 - Prob. 65ECh. 7.1 - Calculator limits Use a calculator to make a table...Ch. 7.1 - Prob. 67ECh. 7.1 - Logarithm properties Use the integral definition...Ch. 7.1 - Prob. 69ECh. 7.1 - Prob. 70ECh. 7.1 - Prob. 71ECh. 7.1 - Derivative of ln |x| Differentiate ln x for x 0...Ch. 7.1 - Prob. 73ECh. 7.1 - ln x is unbounded Use the following argument to...Ch. 7.1 - Prob. 75ECh. 7.1 - Alternative proof of product property Assume that...Ch. 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 - Prob. 2QCCh. 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 - Explain the meaning of doubling time.Ch. 7.2 - Explain the meaning of half-life.Ch. 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 - Prob. 11ECh. 7.2 - Prob. 12ECh. 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 - Prob. 18ECh. 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 - Prob. 24ECh. 7.2 - Population of Texas Texas was the third fastest...Ch. 7.2 - Prob. 26ECh. 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 - Prob. 34ECh. 7.2 - Uranium dating Uranium-238 (U-238) has a half-life...Ch. 7.2 - Prob. 36ECh. 7.2 - Caffeine After an individual drinks a beverage...Ch. 7.2 - Caffeine After an individual drinks a beverage...Ch. 7.2 - LED lighting LED (light-emitting diode) bulbs are...Ch. 7.2 - Prob. 40ECh. 7.2 - Tumor growth Suppose the cells of a tumor are...Ch. 7.2 - Prob. 42ECh. 7.2 - Explain why or why not Determine whether the...Ch. 7.2 - Prob. 44ECh. 7.2 - Prob. 45ECh. 7.2 - Overtaking City A has a current population of...Ch. 7.2 - Prob. 47ECh. 7.2 - Prob. 48ECh. 7.2 - Prob. 49ECh. 7.2 - Prob. 50ECh. 7.2 - Prob. 51ECh. 7.2 - Prob. 52ECh. 7.2 - Prob. 53ECh. 7.2 - Prob. 54ECh. 7.2 - Constant doubling time Prove that the doubling...Ch. 7.3 - Use the definition of the hyperbolic sine to show...Ch. 7.3 - Prob. 2QCCh. 7.3 - Prob. 3QCCh. 7.3 - Prob. 4QCCh. 7.3 - Prob. 5QCCh. 7.3 - Prob. 6QCCh. 7.3 - Explain why longer waves travel faster than...Ch. 7.3 - Prob. 1ECh. 7.3 - Prob. 2ECh. 7.3 - Prob. 3ECh. 7.3 - Prob. 4ECh. 7.3 - Prob. 5ECh. 7.3 - Prob. 6ECh. 7.3 - Prob. 7ECh. 7.3 - Prob. 8ECh. 7.3 - Prob. 9ECh. 7.3 - Prob. 10ECh. 7.3 - Prob. 11ECh. 7.3 - Prob. 12ECh. 7.3 - Verifying identities Verify each identity using...Ch. 7.3 - Verifying identities Verify each identity using...Ch. 7.3 - Prob. 15ECh. 7.3 - Prob. 16ECh. 7.3 - Verifying identities Use the given identity to...Ch. 7.3 - Prob. 18ECh. 7.3 - Prob. 19ECh. 7.3 - Prob. 20ECh. 7.3 - Prob. 21ECh. 7.3 - Prob. 22ECh. 7.3 - Prob. 23ECh. 7.3 - Prob. 24ECh. 7.3 - Prob. 25ECh. 7.3 - Prob. 26ECh. 7.3 - Prob. 27ECh. 7.3 - Prob. 28ECh. 7.3 - Prob. 29ECh. 7.3 - Prob. 30ECh. 7.3 - Prob. 31ECh. 7.3 - Prob. 32ECh. 7.3 - Prob. 33ECh. 7.3 - Prob. 34ECh. 7.3 - Prob. 35ECh. 7.3 - Prob. 36ECh. 7.3 - Prob. 37ECh. 7.3 - Prob. 38ECh. 7.3 - Indefinite integrals Determine each indefinite...Ch. 7.3 - Indefinite integrals Determine each indefinite...Ch. 7.3 - Prob. 41ECh. 7.3 - Prob. 42ECh. 7.3 - Definite integrals Evaluate each definite...Ch. 7.3 - Prob. 44ECh. 7.3 - Prob. 45ECh. 7.3 - Prob. 46ECh. 7.3 - Prob. 47ECh. 7.3 - Prob. 48ECh. 7.3 - Prob. 49ECh. 7.3 - Prob. 50ECh. 7.3 - Prob. 51ECh. 7.3 - Prob. 52ECh. 7.3 - Prob. 53ECh. 7.3 - Prob. 54ECh. 7.3 - Prob. 55ECh. 7.3 - Prob. 56ECh. 7.3 - Prob. 57ECh. 7.3 - Prob. 58ECh. 7.3 - Visual approximation a. Use a graphing utility to...Ch. 7.3 - Prob. 60ECh. 7.3 - Prob. 61ECh. 7.3 - Prob. 62ECh. 7.3 - Prob. 63ECh. 7.3 - Prob. 64ECh. 7.3 - Prob. 65ECh. 7.3 - Prob. 66ECh. 7.3 - Prob. 67ECh. 7.3 - Prob. 68ECh. 7.3 - Prob. 69ECh. 7.3 - Prob. 70ECh. 7.3 - Prob. 71ECh. 7.3 - Prob. 72ECh. 7.3 - Prob. 73ECh. 7.3 - Wave velocity Use Exercise 73 to do the following...Ch. 7.3 - Prob. 75ECh. 7.3 - Prob. 76ECh. 7.3 - Prob. 77ECh. 7.3 - Prob. 78ECh. 7.3 - Prob. 79ECh. 7.3 - Prob. 80ECh. 7.3 - Prob. 81ECh. 7.3 - Prob. 82ECh. 7.3 - Prob. 83ECh. 7.3 - Prob. 84ECh. 7.3 - Prob. 85ECh. 7.3 - Prob. 86ECh. 7.3 - LHpital loophole Explain why lHpitals Rule fails...Ch. 7.3 - Prob. 88ECh. 7.3 - Prob. 89ECh. 7.3 - Prob. 90ECh. 7.3 - Prob. 91ECh. 7.3 - Prob. 92ECh. 7.3 - Prob. 93ECh. 7.3 - Newtons method Use Newtons method to find all...Ch. 7.3 - Prob. 95ECh. 7.3 - Prob. 96ECh. 7.3 - Prob. 97ECh. 7.3 - Prob. 98ECh. 7.3 - Prob. 99ECh. 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 - Prob. 106ECh. 7.3 - Prob. 107ECh. 7.3 - Prob. 108ECh. 7.3 - Prob. 109ECh. 7.3 - Prob. 110ECh. 7.3 - Prob. 111ECh. 7.3 - Prob. 112ECh. 7 - Explain why or why not Determine whether the...Ch. 7 - Integrals Evaluate the following integrals. 56....Ch. 7 - Prob. 3RECh. 7 - Integrals Evaluate the following integrals. 58....Ch. 7 - Prob. 5RECh. 7 - Prob. 6RECh. 7 - Prob. 7RECh. 7 - Integrals Evaluate the following integrals. 62....Ch. 7 - Prob. 9RECh. 7 - Prob. 10RECh. 7 - Prob. 11RECh. 7 - Derivatives Find the derivatives of the following...Ch. 7 - Prob. 13RECh. 7 - Prob. 14RECh. 7 - Prob. 15RECh. 7 - Derivatives Find the derivatives of the following...Ch. 7 - Derivatives Find the derivatives of the following...Ch. 7 - Prob. 18RECh. 7 - Prob. 19RECh. 7 - Population growth The population of a large city...Ch. 7 - Prob. 21RECh. 7 - Prob. 22RECh. 7 - Prob. 23RECh. 7 - Radioactive decay The mass of radioactive material...Ch. 7 - Prob. 25RECh. 7 - Prob. 26RECh. 7 - Prob. 27RECh. 7 - Curve sketching Use the graphing techniques of...Ch. 7 - Prob. 29RECh. 7 - Prob. 30RECh. 7 - Prob. 31RECh. 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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