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Mathematics solutions (1 Viewer)

cheschirecat

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Question, what if we forgot +c.
It depends, according to my teacher they usually have one integration question wherein they allocate one mark for noting the +c, however in the other ones you'd be marked the same. However, if you forgot +c in a question that involves finding the equation from the derivative though you should lose the mark whatever the situation. (I might be completely wrong though)
 
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Tasha270494

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Yes there are that amount of members but they're not asking how much money the site earned on day 12 it is asking how much money it earned during the first 12 days so the answer would be:
27*0.005((2^12)-1)/(2-1)
yeah. On Day 12 there was a total of 55296 members (and that includes Day 1, Day 2... read the Q. again)
So I'm pretty sure you just multiply that by 0.5 and get $276
 

umz93

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Its annoying that before the test I kept reminding myself to do +c if needed....
 

barbernator

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yeah. On Day 12 there was a total of 55296 members (and that includes Day 1, Day 2... read the Q. again)
So I'm pretty sure you just multiply that by 0.5 and get $276
No, because on day 12 there were 55296 members, but on day 11 there were 27648 and so on. So for each day they earn 0.5 c for each member, so you are earning more than 0.5c for a member that joined on the first day, so you have to take the sum of the members from day 1-12 and you get $553 :)
 

mimic

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No, because on day 12 there were 55296 members, but on day 11 there were 27648 and so on. So for each day they earn 0.5 c for each member, so you are earning more than 0.5c for a member that joined on the first day, so you have to take the sum of the members from day 1-12 and you get $553 :)
Yeah that's right :)
 

Awkward_Ninja

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I think i got $553.
I nearly gave up on this, then i had a brainwave on how to do it.
I now can't remember how i did it.
 

jamesfirst

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It depends, according to my teacher they usually have one integration question wherein they allocate one mark for noting the +c, however in the other ones you'd be marked the same. However, if you forgot +c in a question that involves finding the equation from the derivative though you should lose the mark whatever the situation. (I might be completely wrong though)
Depending on ANY Marker.


You DO lose mark.
 

Tennisaddict

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wtf? There is not congruency rule with AAA.

There is a similar triangle rule with AA.. therefore by putting in congruent triangle, you are incorrect. You can't have a 'ratio' with congruent triangles anyway.


And, instead of "(equal intercept theory)" I wrote "equal transversals of parallel lines"
I meant similar! :lol:
 

friend177

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0.5 cents shit I think I did 0.5 dollars wtf I mean what's less than a cent? Uh....0.5 cent Fml
 

lobster1234

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for q5 aii i think wasnt it 16 days?
27*2^16 >1000000
27*2^15<1000000
i didnt use formulas lol :/
 

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