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UNO [17]
3 years ago
10

Henri surveys his 20 classmates about the number of times they go swimming per week during the summer. He finds that 6 of his cl

assmates go less than 2 times a week, while 9 his his classmates go more tha 20 times a week . The other 5 classmates go between 4-6 times a week would the mean be greater than or less that the median
Mathematics
1 answer:
Vadim26 [7]3 years ago
6 0

Greater than.

The median would round to 6 and the mean would round to 10.4.

10.4 is greater than 6.


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Harry Potter decides it’s too cold for him to stay in Hogwarts and wants to fly straight south, the heading he should have and the velocity of the broom with respect to the ground are mathematically given as

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<h3>What is the heading he should have and the velocity of the broom with respect to the ground?</h3>

Divide horizontal and vertical components of Vs and Vw vectors

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For Vw

Vw = Vw Cos 55' [s] + Vw Sin 55 [E]

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Resultant velocity VR = Vs + Vw

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VR = (186030 +3.3458) [5] + (18sing - 4.7183)6]

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18sin∅ - 4.7783 18=0

Hence

Sin∅ = 4.7783 18/18

∅ =sin{-1}(4.7783 18/18)

∅  = 15.3943

Harry Potter flies in the direction south to ∅ = $15.3943w]

Hence  velocity

VR = (18 cos∅   + 35452) s + 0

VR = (17.3541 +3-3458) s

VR = 20, 69999 m/s South

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1 year ago
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