Answer:
Domain is all real numbers. Range is [36- negative infinity]
It is actually not 28 because the volume of a cylinder is: pi r^2 x h which in this case is pi x 36 x 4 which equals 452.39 rounded up
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<u>Solution</u><u>:</u></h2>
We have,
- Departing time = 10 : 45 hours
- Distance between home and airport = 325 km
- Average speed = 50 km/h
Finding time taken by the man,
⇛ Average speed = Total Distance/Total time
⇛ Total time = Total Distance/Average speed
⇛ Total time = 325 km/50 km/h
⇛ Total time = 6.5 h (6 hrs 30 mins)
(a) Total Time duration,
⇛ Total Time = Reaching Time - Departing time
⇛ 6.5 h = Reaching Time - 10 : 45 hours
⇛ Reaching Time = 17 : 15 hours ( 5 : 15 pm)
(b) Finding time taken in return,
- Departing time = 18 : 35 hours
- Reaching time = 23 : 10 hours
Total time duration,
⇛ Total Time = Reaching Time - Departing time
⇛ Total Time = 23 : 10 hours - 18 : 35 hours
⇛ Total Time = 22 : 70 hours - 18 : 35 hours
⇛ Total time = 4 : 35 hours
☕ Hence, solved !!
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