Asked by hh.

the launch window for a weather satellite is represented by the inequality

|t-360| < 20

where t minutes is the time from the start of the countdown to the launch. If the countdown starts at 01:00, at what times can the satellite be launched?

Answers

Answered by Reiny
t-360 ≤ 20 and -t+360 < 20
t < 380 and -t < -340
t < 380 and t > 340

so 340 < t < 380

"t is between 340 and 380"
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