PLEASE PLEASE PLEASE HELP!!!! I'M BEGGING YOU! 1.The first differences of a sequence are a constant -7 and the third term is 22, find the first 5 terms of the sequence. 2.The third and fourth terms of a sequence are 101 and 83. If the first differences are constant, find the first 5 terms of the sequence. 3.For each sequence, determine which differences are constant and what the constant difference is. a. 1, 2, 3, 4, 5, ... b. 1^2, 2^2, 3^2, 4^2, 5^2, ... c. 1^3, 2^3, 3^3, 4^3, 5^3, ... d. Based on a, b, and c, determine how many differences you have to compute until you find a constant differ
I only need help with the 3rd one, so PLEASE PLEASE PLEASE PLEASE HELP
help please only need help on the third one!
3.For each sequence, determine which differences are constant and what the constant difference is. a. 1, 2, 3, 4, 5, ... b. 1^2, 2^2, 3^2, 4^2, 5^2, ... c. 1^3, 2^3, 3^3, 4^3, 5^3, ... d. Based on a, b, and c, determine how many differences you have to compute until you find a constant difference for the sequence 1^4, 2^4, 3^4, 4^4, 5^4, ...
1.The first differences of a sequence are a constant -7 and the third term is 22, find the first 5 terms of the sequence. ===> a3=a1+2d ==> 22=a1-14==> a1= 36 ==> a2=29, a3=22,a4=15,a5=8
umm....
that's a little too complicated for me...
it's supposed to post each question in a separte thread not all the three questions in one thread.
oh
ok regarding #1
try to translate the given verbal words into equation
um ok
it's said that the third term is 22
yes
this means a3= a1+2*d
i already figured number 1 and 2 out, i just need help on number 3
id theis clear to you
ok we go on #3 then
ok
d= -7; A(3) =22 n: 1 2 3 4 5 A: 22 +7 +7 -7 -7
yea i knowthat
a. 1, 2, 3, 4, 5, ... ( differnce is constat which d=1)
yes
you do check the other in the same way
just subtract every term from it's neighbour
is that ok now?
yea, but do you know how to do number 3?
3.For each sequence, determine which differences are constant and what the constant difference is. a. 1, 2, 3, 4, 5, ... b. 1^2, 2^2, 3^2, 4^2, 5^2, ... c. 1^3, 2^3, 3^3, 4^3, 5^3, ... d. Based on a, b, and c, determine how many differences you have to compute until you find a constant difference for the sequence 1^4, 2^4, 3^4, 4^4, 5^4, ...
can you post it here again
yea
you mean c. ?
um...no #3
the whole problem..
I already did a. to you above
ok
a. 1, 2, 3, 4, 5, ... ( differnce is constat which d=1)
yea
b.?
b. 1^2, 2^2, 3^2, 4^2, 5^2, ... , (1,4,8,16,32,...) here you see that the difference is not constant, right?
yea
I just computed the powers into integers
wait where did you get 1,4,8,16,32,...
that is just to make it easy to me and you to see the differnce becasuse the give is in the form of powers which could be difficult to find the differnce directly
so 1,4,8,16,32,... are only those 1^1,2^2,3^2,4^2,...
still confused?
but wait, 3*3 is 9 u put 16?
you are right it's 9 but I put 8, I'm sorry
o
ok c.?
the site is always stuck
ok now c
c. 1^3, 2^3, 3^3, 4^3, 5^3, ... ( 1,8,27,64 ,---) it's clear that the diffrence is not constant
right?
yea
ok
d. Based on a, b, and c, determine how many differences you have to compute until you find a constant differ
but it says determine how many differences you have to compute until you find a constant difference for the sequence 1^4, 2^4, 3^4, 4^4, 5^4, ...
..yea
tha answer for d is that
is what?
usually we need to do three to four diffrences to check if we have a constant diffrence situation or not
I mean we are not suppose to do many diffrences, mostly 3 diffrences are enogh to detemin
wait i have to reload the page
ok
ok i'm back
wb
any more q?
is that okay with you?
yes
thank you!
you are welcome. any time.
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