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March 28, 2024, 11:41:56 pm

Author Topic: Mathematics Question Thread  (Read 1296698 times)  Share 

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nibblez16

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Re: Mathematics Question Thread
« Reply #705 on: October 20, 2016, 08:05:57 pm »
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Help please

jakesilove

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Re: Mathematics Question Thread
« Reply #706 on: October 20, 2016, 08:09:16 pm »
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Help please

Hey! So, we need to set up a geometric series. We can easily see that



So, which of the terms fit into this pattern? It's clearly looking at the 10th and 11th term (as that will get us a power of 10 and 11 for x).



Okay, not helpful



So, the answer is C
« Last Edit: October 20, 2016, 08:16:01 pm by RuiAce »
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olivercutbill

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Re: Mathematics Question Thread
« Reply #707 on: October 20, 2016, 08:11:02 pm »
+1
Hey, I came across this question and realised that I have absolutely no idea what simple interest is. Could someone explain to me the last part of this question, the parts before are fine just the last part. The answers used some PRT/100 = I formula, which i have never used lol.


Cheers :P

what year is this from? :) If i check I can help
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RuiAce

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Re: Mathematics Question Thread
« Reply #708 on: October 20, 2016, 08:14:55 pm »
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Hey, I came across this question and realised that I have absolutely no idea what simple interest is. Could someone explain to me the last part of this question, the parts before are fine just the last part. The answers used some PRT/100 = I formula, which i have never used lol.


Cheers :P

To illustrate the r and R, for a rate of 6% p.a.
R = 6
r = 0.06




_____________

That being said: To do that question, just deduct off the original principal and plug it into the formula. I = PrT = PRT/100 is assumed knowledge from Year 10.
« Last Edit: October 20, 2016, 08:21:49 pm by RuiAce »

caninesandy

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Re: Mathematics Question Thread
« Reply #709 on: October 20, 2016, 08:15:42 pm »
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Hey guys! :D
I just have a quick question about an easy question but I always get confused...

Solve 3 tan(x) + 1= 0 for 0° ≤ x ≤ 360°
Are the answers: 150 and 210???

Thank you! :D
« Last Edit: October 20, 2016, 08:17:16 pm by caninesandy »
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nibblez16

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Re: Mathematics Question Thread
« Reply #710 on: October 20, 2016, 08:15:50 pm »
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Hey! So, we need to set up a geometric series. We can easily see that



So, which of the terms fit into this pattern? It's clearly looking at the 10th and 11th term (as that will get us a power of 10 and 11 for x).



Okay, not helpful



So, the answer is C

Alright! Thank You!
Btw for limiting some the absolute ratio should be less than 1 right? Because I saw a question where they used ratio more than one ???

jakesilove

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Re: Mathematics Question Thread
« Reply #711 on: October 20, 2016, 08:17:56 pm »
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Alright! Thank You!
Btw for limiting some the absolute ratio should be less than 1 right? Because I saw a question where they used ratio more than one ???

Yeah, ratio should be between -1 and 1. Sounds like a weird question!
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RuiAce

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Re: Mathematics Question Thread
« Reply #712 on: October 20, 2016, 08:18:29 pm »
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Alright! Thank You!
Btw for limiting some the absolute ratio should be less than 1 right? Because I saw a question where they used ratio more than one ???

jakesilove

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Re: Mathematics Question Thread
« Reply #713 on: October 20, 2016, 08:19:30 pm »
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This would imply that you can have a complex series with a limiting sum? Interesting....
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RuiAce

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Re: Mathematics Question Thread
« Reply #714 on: October 20, 2016, 08:20:08 pm »
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Hey guys! :D
I just have a quick question about an easy question but I always get confused...

Solve 3 tan(x) + 1= 0 for 0° ≤ x ≤ 360°
Are the answers: 150 and 210???

Thank you! :D

RuiAce

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Re: Mathematics Question Thread
« Reply #715 on: October 20, 2016, 08:21:00 pm »
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This would imply that you can have a complex series with a limiting sum? Interesting....
What are you trying to pull here Jake lol I don't get it

caninesandy

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Re: Mathematics Question Thread
« Reply #716 on: October 20, 2016, 08:31:41 pm »
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Oh, yeah sorry I meant the root of 3 :)
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RuiAce

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Re: Mathematics Question Thread
« Reply #717 on: October 20, 2016, 08:34:32 pm »
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« Last Edit: October 20, 2016, 08:36:34 pm by RuiAce »

caninesandy

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Re: Mathematics Question Thread
« Reply #718 on: October 20, 2016, 08:36:39 pm »
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OHHH!! Thank you so much!!!  :D ;D
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nibblez16

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Re: Mathematics Question Thread
« Reply #719 on: October 20, 2016, 08:41:09 pm »
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What are you trying to pull here Jake lol I don't get it

I suck at this part of series :P
Help on last q