7. The shaded \"feasible region\" graphed below satisfies which system of linear

Question

7. The shaded "feasible region" graphed below satisfies which system of linear inequalities? 7. 12 10 410.5] (4,3) 9 10 11 -2 -6 -8 -10 A. 3x + 2y 2 18 x+ 2y2 10 x20 y20 B. 3x +2y s 18 x 2y s 10 x20 y20 C. 3x2y 218 x+ 2y s 10 x 20 y20 8. As chief financial officer at Apocalyptic Fitness Supply, you track costs and revenue for the daily manufacturing process for your company's top-seling product, the SpineCrusherTM unstoppable elliptical trainer. Daily production costs are defined by C(x)-15x12000 where x = number of units made. Daily revenue coming is defined by R (x)-18x-6000 where x = number of units sold. How many SpineCrushefW unstoppable elliptical trainers must be sold daily for the manufacturing process to break even? 8. A. 18000 B. 6000 C. 12000 D. 102000

Explanation / Answer

7) the line 1 shown in the graph has shaded region below the line

so , equation of the line is

3x + 2y <= 18

the line 2 shown in the graph has shaded region above the line

so, inequality of line is

x + 2y >= 10

hence , option d is correct

8) at break even C(x) = R(x)

setting both equations equal

15x + 12000 = 18x - 6000

x = 6000

therefore, option b is correct

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