After discontinuing all advertising for a tool kit in 2010, the manufacturer noted that sales began to drop according to the model500,0001+0.2ektS=where S represents the number of units sold and t represents the year, with t = 0 corresponding to 2010 (see figure). In 2013,300,000 units were sold.500000400 000300 00020000010000046 8 10 12(a) Use the graph to estimate sales (in units sold) in 2019. (Round your answer to the nearest whole number.)S= 60000units sold(b) Complete the model by solving for k. (Round your answer to three decimal places.)k= 0.474(c) Use the model to estimate sales (in units sold) in 2019. (Round your answer to the nearest whole number.)S = 61549 x units soldOutstanding!Compare your results with that of part (a).The algebraic result is significantly different from the graphical result.The algebraic result is similar to the graphical result.

S=5000001+0.2ekt t=0 corresponding to year 2010 Estimated sales in 2019 is 60000

Answered: After discontinuing all advertising for…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Consider the variation of temperature with altitude depicted in the graph below. What is the “y-intercept”?
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50 46 40 30 20 E 20 10 0 I 2 3 5 Number of Catalogs (in thousands) sas (in thousands)
Interpret the slope of the graph of y=f(x)
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Recently there has been a rise in fatal accidents caused by “distracted driving.” The United States National Highway Traffic Safety Administration (NHSTA) defines a distraction as anything that diverts attention from driving. The following model estimates the trend in distracted driving accidents over time based on data from the NHSTA:D = 0.015t - 29.97 In this model, D is the decimal to be turned into a percentage of all fatal accidents caused by distracted driving, and t is any calendar year between 2000 and 2020. Use the model to estimate the rate for 2005 and 2020. Note: this means to plug n 2005 for t and simplify and then turn your answer into a percent. Then plug in 2020 for t and simplify and then turn your answer into a percent.

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