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<span>(t) = 0 gives
</span><span>-24t + 60 = 0
</span><span>t = 2.5
</span><span>For this t, the second derivative s"(t) = -24 is negative. And so, s(t) is maximum for t = 2.5.
</span><span>Maximum height is S = -12(2.5)^2 + 60(2.5) +8 = 233ft</span>
Answer:
24.59 m/s
Step-by-step explanation:
Average speed(m/s) = distance travelled(m) / time taken(s)
Distance = 220 miles
220 miles = 354,056 meters
Time taken = 4 hours
4 hours = 14,400 seconds
Average speed = distance travelled / time taken
= 354,056 / 14,400
= 24.59 meter/seconds
= 24.59 m/s
Step-by-step explanation:
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Answer:
72
Step-by-step explanation:
After finding the median, 49, you must find the median from 71-98, which is 72. P.S. the median is the number in the middle.
7.50*4=30
40*4=160
160-30=130
130\4=32.5
so each boy has left 32.5 with him