By Soo T. Tan

This article is helping you reach finite arithmetic and utilized calculus through the use of transparent causes, real-life examples, and up to date know-how. Real-life applications-such as satellite tv for pc radio subscriptions, Google's profit, activity outsourcing, and the consequences of smoking bans-are drawn from the components of industrial and the behavioral, existence, and social sciences. Portfolio profiles offer you a firsthand examine how real-world execs use finite arithmetic and utilized calculus of their paintings. it's also possible to make the most of broad on-line help to reinforce your studying, together with video guide and interactive tutorials that stroll you step-by-step via examples and difficulties within the textual content.

**Read Online or Download College Mathematics for the Managerial, Life, and Social Sciences, (7th Edition) PDF**

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**Extra resources for College Mathematics for the Managerial, Life, and Social Sciences, (7th Edition) **

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Center (2, Ϫ3) and passes through (5, 2) 34. Center (Ϫa, a) and radius 2a 8 1 STRAIGHT LINES AND LINEAR FUNCTIONS 35. DISTANCE TRAVELED A grand tour of four cities begins at city A and makes successive stops at cities B, C, and D before returning to city A. If the cities are located as shown in the accompanying figure, find the total distance covered on the tour. C (– 800, 800) 500 B(400, 300) D (–800, 0) x (miles) A(0, 0) VHF 30 45 60 75 y (miles) – 500 Range in miles 500 36. DELIVERY CHARGES A furniture store offers free setup and delivery services to all points within a 25-mi radius of its warehouse distribution center.

The distance between city A and city B is –5 d1A, B2 ϭ 2200 2 ϩ 50 2 Ϸ 206 b. The distance between A and B is d1A, B2 ϭ 212 Ϫ 42 2 ϩ 3 3 Ϫ 1Ϫ2 2 4 2 ϭ 21Ϫ2 2 2 ϩ 52 ϭ 14 ϩ 25 ϭ 129 The distance between B and C is d1B, C2 ϭ 21Ϫ3 Ϫ 2 2 2 ϩ 11 Ϫ 32 2 ϭ 21Ϫ52 2 ϩ 1Ϫ22 2 ϭ 125 ϩ 4 ϭ 129 or 206 mi. The distance between city B and city C is d1B, C2 ϭ 21600 Ϫ 2002 2 ϩ 1320 Ϫ 502 2 ϭ 2400 2 ϩ 270 2 Ϸ 483 or 483 mi. Therefore, the total distance the pilot would have to cover is 689 mi, so she must refuel in city B.

26. The slope of the line is negative, and its x-intercept is positive. y a. x 4 y f. 3 4 x –3 3 x –4 In Exercises 27–30, find an equation of the line that passes through the point and has the indicated slope m. y b. 4 27. (3, Ϫ4); m ϭ 2 29. (Ϫ3, 2); m ϭ 0 x 4 28. (2, 4); m ϭ Ϫ1 1 30. 11, 22; m ϭ Ϫ 2 In Exercises 31–34, find an equation of the line that passes through the given points. 31. (2, 4) and (3, 7) 32. (2, 1) and (2, 5) 33. (1, 2) and (Ϫ3, Ϫ2) 34. 2 In Exercises 35–38, find an equation of the line that has slope m and y-intercept b.