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In Exercises 47 and 48 we consider the problem of placing towers along a straight road, so that every building on the road receives cellular service. Assume that a building receives cellular service if it is with one mile of a tower.
*48. Use mathematical indouction to prove that the algorithm you deised in Exerise 47 produces an optimal solution, that is, that it uses the fewest towers possible to provide cellular service to all buildings.
47.Devise a greedy algorithm that uses the minimum number of towers possible to provide cell service todbuildings located atpositions from the start of theroad. [Hint: At each step, go as far as possible along the road before adding a towver so as not to leave any buildings without coverage.]
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Chapter 5 Solutions
Discrete Mathematics and Its Applications ( 8th International Edition ) ISBN:9781260091991
- Use the following graph of ƒ (x) to evaluate ƒ' (−1) and ƒ' (2). y +10+ 9 8 7 6 5 4 3 2 1- -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 x 3 4 0 8 9 10 -2 3 -4 5 -6 -7 -8 -9 -10- f'(-1)= f' (2)arrow_forwardFor the following function f and real number a, a. find the slope of the tangent line mtan = = f' (a), and b. find the equation of the tangent line to f at x = a. f(x) = 2 = ;a=2 a. Slope: b. Equation of tangent line: yarrow_forwardFor the following function f and real number a, a. find the slope of the tangent line mtan = f' (a), and b. find the equation of the tangent line to f at x = a. f(x) = 2x² + 3x; a = 2 a. Slope: b. Equation of tangent line: yarrow_forward
- For the following function f and real number a, find f' (a). f(x) = = √x+4; a = 0 f' (a)arrow_forwardFind the slope of the secant line between the values x₁ and x2 for the function y = f (x). Answer exactly or round to 2 decimal places. f(x) = √√x x7; x₁ = 11, x2 = 23 Slope:arrow_forwardFor the following function f and real number a, find f' (a). f(x)=8x+6; a = −3 f' (a)arrow_forward
- Find the slope of the secant line between the values 1 and 2 for the function y = f(x). Answer exactly or round to 2 decimal places. 2 f(x)= ; = x12, x24 2, x2 = 4 2x 1 Slope: Submit Questionarrow_forwardanswer a, b, and carrow_forwardA population of muffles (a feathery species unrelated to tribbles) begins with 30 animals and has 100 animals after 36 hours.arrow_forward
- A population of muffles (a feathery species unrelated to tribbles) begins with 30 animals and has 100 animals after 36 hours. 1. Find a formula describing the growth of the muffle population (4 points). Round any decimals to five decimal places.arrow_forwardFind the radius of circle carrow_forward6 + 3 ² 3679 a 2 च 2 Find the value of x, round to the nearest tenth. 7. 360 L 173² 2 = 7.1 7x-20 8. Q 9 T 9 P 3 360 4 3x x = 3.1 S 34 7+ 7 10. CD = CB, GQ = x +5, EQ = 3x - 6. G LU E B x+5=3x-6 -S-S x = 3x-11 3-3 4A 6.5arrow_forward
- Linear Algebra: A Modern IntroductionAlgebraISBN:9781285463247Author:David PoolePublisher:Cengage LearningAlgebra and Trigonometry (MindTap Course List)AlgebraISBN:9781305071742Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage Learning
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