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?
|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"
t < 380 and -t < -340
t < 380 and t > 340
so 340 < t < 380
"t is between 340 and 380"
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