Mathematics

Veronica Dickerson

20 August, 10:05

41:02

Machine 1 can complete a task in x hours while an upgraded machine (machine 2) needs 9 fewer hours. The plant manager

knows the two machines will take at least 6 hours, as represented by the inequality:

Which answer choice includes all solutions to the inequality and identifies which interval (s) contain viable completion times of

machine 1?

(0.3] U (9,18]; both contain viable times for machine 1

0 (0.3] U (9,18); only (9,18] contains viable times for machine 1

0 (-0,0) U (3,9) U (18, co); no interval contains viable times for machine 1

0 (-0,0) U[3,9U (18, co); but only (18, co) contains viable times for machine 1

6:36 PM

041 122/2020

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