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What Are The Next Three Numbers In This Sequence? - Education (2) - Nairaland

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Re: What Are The Next Three Numbers In This Sequence? by afo7219: 7:41pm On Aug 06, 2017
Next question pls
Re: What Are The Next Three Numbers In This Sequence? by MrOlai: 7:55pm On Aug 06, 2017
afo7219:
Next question pls
Ok
Re: What Are The Next Three Numbers In This Sequence? by MrOlai: 7:56pm On Aug 06, 2017
MrOlai:
What is the formula for the nth term of the sequence:

-1, 5, 15, 29, 47, ...?
Re: What Are The Next Three Numbers In This Sequence? by DrayZee: 8:11pm On Aug 06, 2017
MrOlai:


Wrong. It isn't AP.
You're asking for the formula use to find the value of different terns in a sequence.
Sequences and Series..arithmetic progression...It's all related.

Now, gimme the answer to that question...or better still,tell me why my answer is not correct.
Re: What Are The Next Three Numbers In This Sequence? by MrOlai: 8:18pm On Aug 06, 2017
DrayZee:

You're asking for the formula use to find the value of different terns in a sequence.
Sequences and Series..arithmetic progression...It's all related.

Now, gimme the answer to that question...or better still,tell me why my answer is not correct.

DrayZee:

Lol. The one above is AP na.

AP has a common difference. In the sequence -1, 5, 15, 29, 47, .... , there is no common difference there. So, it's not an AP.
Re: What Are The Next Three Numbers In This Sequence? by DrayZee: 8:21pm On Aug 06, 2017
MrOlai:




AP has a common difference. In the sequence -1, 5, 15, 29, 47, .... , there is no common difference there. So, it's not an AP.
Yh. I figured that out while I was solving.. They're related.

But what is the answer to the question?
Re: What Are The Next Three Numbers In This Sequence? by MrOlai: 8:22pm On Aug 06, 2017
DrayZee:

You're asking for the formula use to find the value of different terns in a sequence.
Sequences and Series..arithmetic progression...It's all related.

Now, gimme the answer to that question...or better still,tell me why my answer is not correct.
DrayZee:

Tn= 2(n-1)2+4(n-1) -1
Re: What Are The Next Three Numbers In This Sequence? by DrayZee: 8:23pm On Aug 06, 2017
MrOlai:


According to your formula, when n =1, you wouldn't get -1.
Lol. Check again.

1 Like

Re: What Are The Next Three Numbers In This Sequence? by MrOlai: 8:26pm On Aug 06, 2017
DrayZee:

Lol. Check again.

grin You're very correct!

I didn't observe your formula very well. Kudos!

But the sequence is not an AP.
Re: What Are The Next Three Numbers In This Sequence? by DrayZee: 8:30pm On Aug 06, 2017
MrOlai:


grin You're very correct!

I didn't observe your formula very well. Kudos!

But the sequence is not an AP.
I don hear o. I said they were related.
Re: What Are The Next Three Numbers In This Sequence? by MrOlai: 8:33pm On Aug 06, 2017
DrayZee:
Tn= 2(n-1)2+4(n-1) -1
What about this:
Tn= 2n2 - 3
Re: What Are The Next Three Numbers In This Sequence? by mustapha112: 9:02pm On Aug 06, 2017
Tn=2(n-1)^2+4(n-1)-1 2(n-1) (n-1)+4(n-1)-1 2[n^2-n-n+1]+4n-4-1 2n^2-2n-2n+2+4n-4-1 collect like terms 2n^2-2n-2n+4n+2-4-1 2n^2-4n+4n+2-4-1 2n^2+2-4-1 2n^2+2-5 Tn= 2n^2-3 final answer

1 Like

Re: What Are The Next Three Numbers In This Sequence? by MrOlai: 9:11pm On Aug 06, 2017
mustapha112:
Tn=2(n-1)^2+4(n-1)-1 2(n-1) (n-1)+4(n-1)-1 2[n^2-n-n+1]+4n-4-1 2n^2-2n-2n+2+4n-4-1 collect like terms 2n^2-2n-2n+4n+2-4-1 2n^2-4n+4n+2-4-1 2n^2+2-4-1 2n^2+2-5 Tn= 2n^2-3 final answer

Well done!
Re: What Are The Next Three Numbers In This Sequence? by DrayZee: 9:15pm On Aug 06, 2017
MrOlai:


What about this:

Tn= 2n2 - 3
Also correct.

1 Like

Re: What Are The Next Three Numbers In This Sequence? by mustapha112: 9:34pm On Aug 06, 2017
Sir i need a recharge card because of my account is low but i know that you are not giving but all my hardwork need to rewarded thank you,any amount i will appreciate.
Re: What Are The Next Three Numbers In This Sequence? by MrOlai: 9:36pm On Aug 06, 2017
mustapha112:
Sir i need a recharge card because of my account is low but i know that you are not giving but all my hardwork need to rewarded thank you,any amount i will appreciate.

grin Which network are you using?

Or do you have Etisalat(9mobile) line?
Re: What Are The Next Three Numbers In This Sequence? by mustapha112: 9:51pm On Aug 06, 2017
No but i am using mtn
Re: What Are The Next Three Numbers In This Sequence? by MrOlai: 9:57pm On Aug 06, 2017
mustapha112:
No but i am using mtn
I only have Etisalat Data bundles with me here if you won't mind.
Re: What Are The Next Three Numbers In This Sequence? by mustapha112: 10:06pm On Aug 06, 2017
I do not think it will work,please sir find a way?
Re: What Are The Next Three Numbers In This Sequence? by mustapha112: 7:05am On Aug 07, 2017
Why are you not replying?
Re: What Are The Next Three Numbers In This Sequence? by afo7219: 11:48am On Aug 07, 2017
MrOlai:


Ok
next question sir. Even if u no give me recharge card I no mind
Re: What Are The Next Three Numbers In This Sequence? by MrOlai: 12:05pm On Aug 07, 2017
afo7219:
next question sir. Even if u no give me recharge card I no mind

Lol. Ok
Re: What Are The Next Three Numbers In This Sequence? by MrOlai: 12:12pm On Aug 07, 2017
On an Air France flight, there are 9 boys, 5 French children, 9 men, 7 foreign boys, 14 French citizens, 6 French males, and 7 foreign females. What is the number of people aboard the plane?
Re: What Are The Next Three Numbers In This Sequence? by mustapha112: 12:53pm On Aug 07, 2017
Sir,where is it i had not seen anything?
Re: What Are The Next Three Numbers In This Sequence? by MrOlai: 1:10pm On Aug 07, 2017
mustapha112:
Sir,where is it i had not seen anything?

Provide any Etisalat line. I'll give you 1Gig data.
Re: What Are The Next Three Numbers In This Sequence? by afo7219: 1:29pm On Aug 07, 2017
No of people 21
Re: What Are The Next Three Numbers In This Sequence? by MrOlai: 1:50pm On Aug 07, 2017
afo7219:
No of people 21
Wrong
Re: What Are The Next Three Numbers In This Sequence? by mustapha112: 2:10pm On Aug 07, 2017
What i am using is mtn,where will i find etisalat but you gave someone airtel sir please is there no alternative.
Re: What Are The Next Three Numbers In This Sequence? by MasterMind21(m): 3:39pm On Aug 07, 2017
MrOlai:
On an Air France flight, there are 9 boys, 5 French children, 9 men, 7 foreign boys, 14 French citizens, 6 French males, and 7 foreign females. What is the number of people aboard the plane?
33
Re: What Are The Next Three Numbers In This Sequence? by MrOlai: 3:44pm On Aug 07, 2017
MasterMind21:
33
grin Correct!
Re: What Are The Next Three Numbers In This Sequence? by MrOlai: 3:45pm On Aug 07, 2017
mustapha112:
What i am using is mtn,where will i find etisalat but you gave someone airtel sir please is there no alternative.

grin grin
Re: What Are The Next Three Numbers In This Sequence? by MasterMind21(m): 3:50pm On Aug 07, 2017
MrOlai:

grin Correct!
Wow! I'm waiting for my airtime oo

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