Find the 12th term of the sequence given by the rule $t_n=4n-2$

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Find the 12th term of the sequence given by the rule $t_n=4n-2$.



Is the answer $44$, or $48$, or $50$, or $46$?




I am trying to help my daughter. Please help me. I am interested in learning how to do this myself. Her online schooling is not very good at teaching her what she needs. She has to just watch videos and read tons of descriptions. Thank you in advance!




linear-algebra




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  • the tn looks liek that the 4n is like that and then its just -2
    – Sam Click Jr
    Jul 28 at 0:12






  • 1




    Did you replace $n$ with 5 and simplify right hand side of expression because that's all you have to do to find the fifth term?
    – randomgirl
    Jul 28 at 0:13










  • and I have another one that is that tn then =3 then (-1) then a n-1 that is small on the upper right side of the (-1). i only know how to put it out like this... tn=3(-1)n-1
    – Sam Click Jr
    Jul 28 at 0:14






  • 1




    Why are you suggesting 44,48,50, or 56? Is it multiple choice? You should simply plug in $n=5$ to get $T_n =4n-2=4*5-2=20-2=18$.
    – fleablood
    Jul 28 at 0:18






  • 1




    This user is either trolling or copy paste answering old questions: math.stackexchange.com/questions/1486877/…
    – user1949350
    Jul 28 at 0:29















up vote
0
down vote

favorite













Find the 12th term of the sequence given by the rule $t_n=4n-2$.



Is the answer $44$, or $48$, or $50$, or $46$?




I am trying to help my daughter. Please help me. I am interested in learning how to do this myself. Her online schooling is not very good at teaching her what she needs. She has to just watch videos and read tons of descriptions. Thank you in advance!




linear-algebra




share|cite|improve this question





















  • the tn looks liek that the 4n is like that and then its just -2
    – Sam Click Jr
    Jul 28 at 0:12






  • 1




    Did you replace $n$ with 5 and simplify right hand side of expression because that's all you have to do to find the fifth term?
    – randomgirl
    Jul 28 at 0:13










  • and I have another one that is that tn then =3 then (-1) then a n-1 that is small on the upper right side of the (-1). i only know how to put it out like this... tn=3(-1)n-1
    – Sam Click Jr
    Jul 28 at 0:14






  • 1




    Why are you suggesting 44,48,50, or 56? Is it multiple choice? You should simply plug in $n=5$ to get $T_n =4n-2=4*5-2=20-2=18$.
    – fleablood
    Jul 28 at 0:18






  • 1




    This user is either trolling or copy paste answering old questions: math.stackexchange.com/questions/1486877/…
    – user1949350
    Jul 28 at 0:29













up vote
0
down vote

favorite









up vote
0
down vote

favorite












Find the 12th term of the sequence given by the rule $t_n=4n-2$.



Is the answer $44$, or $48$, or $50$, or $46$?




I am trying to help my daughter. Please help me. I am interested in learning how to do this myself. Her online schooling is not very good at teaching her what she needs. She has to just watch videos and read tons of descriptions. Thank you in advance!




linear-algebra




share|cite|improve this question














Find the 12th term of the sequence given by the rule $t_n=4n-2$.



Is the answer $44$, or $48$, or $50$, or $46$?




I am trying to help my daughter. Please help me. I am interested in learning how to do this myself. Her online schooling is not very good at teaching her what she needs. She has to just watch videos and read tons of descriptions. Thank you in advance!





linear-algebra





share|cite|improve this question












share|cite|improve this question




share|cite|improve this question








edited Jul 28 at 0:31
























asked Jul 28 at 0:07









Sam Click Jr

64




64











  • the tn looks liek that the 4n is like that and then its just -2
    – Sam Click Jr
    Jul 28 at 0:12






  • 1




    Did you replace $n$ with 5 and simplify right hand side of expression because that's all you have to do to find the fifth term?
    – randomgirl
    Jul 28 at 0:13










  • and I have another one that is that tn then =3 then (-1) then a n-1 that is small on the upper right side of the (-1). i only know how to put it out like this... tn=3(-1)n-1
    – Sam Click Jr
    Jul 28 at 0:14






  • 1




    Why are you suggesting 44,48,50, or 56? Is it multiple choice? You should simply plug in $n=5$ to get $T_n =4n-2=4*5-2=20-2=18$.
    – fleablood
    Jul 28 at 0:18






  • 1




    This user is either trolling or copy paste answering old questions: math.stackexchange.com/questions/1486877/…
    – user1949350
    Jul 28 at 0:29

















  • the tn looks liek that the 4n is like that and then its just -2
    – Sam Click Jr
    Jul 28 at 0:12






  • 1




    Did you replace $n$ with 5 and simplify right hand side of expression because that's all you have to do to find the fifth term?
    – randomgirl
    Jul 28 at 0:13










  • and I have another one that is that tn then =3 then (-1) then a n-1 that is small on the upper right side of the (-1). i only know how to put it out like this... tn=3(-1)n-1
    – Sam Click Jr
    Jul 28 at 0:14






  • 1




    Why are you suggesting 44,48,50, or 56? Is it multiple choice? You should simply plug in $n=5$ to get $T_n =4n-2=4*5-2=20-2=18$.
    – fleablood
    Jul 28 at 0:18






  • 1




    This user is either trolling or copy paste answering old questions: math.stackexchange.com/questions/1486877/…
    – user1949350
    Jul 28 at 0:29
















the tn looks liek that the 4n is like that and then its just -2
– Sam Click Jr
Jul 28 at 0:12




the tn looks liek that the 4n is like that and then its just -2
– Sam Click Jr
Jul 28 at 0:12




1




1




Did you replace $n$ with 5 and simplify right hand side of expression because that's all you have to do to find the fifth term?
– randomgirl
Jul 28 at 0:13




Did you replace $n$ with 5 and simplify right hand side of expression because that's all you have to do to find the fifth term?
– randomgirl
Jul 28 at 0:13












and I have another one that is that tn then =3 then (-1) then a n-1 that is small on the upper right side of the (-1). i only know how to put it out like this... tn=3(-1)n-1
– Sam Click Jr
Jul 28 at 0:14




and I have another one that is that tn then =3 then (-1) then a n-1 that is small on the upper right side of the (-1). i only know how to put it out like this... tn=3(-1)n-1
– Sam Click Jr
Jul 28 at 0:14




1




1




Why are you suggesting 44,48,50, or 56? Is it multiple choice? You should simply plug in $n=5$ to get $T_n =4n-2=4*5-2=20-2=18$.
– fleablood
Jul 28 at 0:18




Why are you suggesting 44,48,50, or 56? Is it multiple choice? You should simply plug in $n=5$ to get $T_n =4n-2=4*5-2=20-2=18$.
– fleablood
Jul 28 at 0:18




1




1




This user is either trolling or copy paste answering old questions: math.stackexchange.com/questions/1486877/…
– user1949350
Jul 28 at 0:29





This user is either trolling or copy paste answering old questions: math.stackexchange.com/questions/1486877/…
– user1949350
Jul 28 at 0:29











2 Answers
2






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0
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The $n$th term of the sequence is
$$t_n=4 cdot n-2.
$$
To compute the 12th term of the sequence, just plug in $12$ for $n$:
$$
t_12 = 4 cdot (12)-2 = 48-2=46.
$$



It sounds like your other sequence is
$$
t_n = 3 cdot (-1)^n-1,
$$
if I understood you correctly.
To get the 5th term of this sequence, replace $n$ by $5$:
$$
t_n = 3 cdot (-1)^5-1 = 3 cdot (-1)^4 = 3.
$$






share|cite|improve this answer























  • what does plug in mean see am I just illiterate?
    – Sam Click Jr
    Jul 28 at 0:27










  • Don't worry, that's ok. "Plug in" means replace $n$ with the number $12$ to get the 12th term in the sequence.
    – littleO
    Jul 28 at 0:29










  • "Plug in" is a colloquialism for "Substitute the value of".
    – Euler....IS_ALIVE
    Jul 28 at 0:29










  • so when it says 5th term the n then becomes 5?
    – Sam Click Jr
    Jul 28 at 0:32










  • so the other one that I am trying to understand is like this tn=3(-1) the it has a little n-1 on the upper side of the ) of the -1. so like this tn=3(-1)n-1
    – Sam Click Jr
    Jul 28 at 0:33

















up vote
2
down vote













If chickens laid eggs according to that rule, when you have n chickens, you have (4n - 2) number of eggs. For 1 chicken thats 4x1-2=2 eggs, for two chickens, 4x2-2=6 eggs, for n chickens, (4n-2) eggs.






share|cite|improve this answer

















  • 1




    oh wow that simple... LOL
    – Sam Click Jr
    Jul 28 at 0:42






  • 1




    thank you ALL so much
    – Sam Click Jr
    Jul 28 at 0:45










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2 Answers
2






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2 Answers
2






active

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active

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up vote
0
down vote



accepted










The $n$th term of the sequence is
$$t_n=4 cdot n-2.
$$
To compute the 12th term of the sequence, just plug in $12$ for $n$:
$$
t_12 = 4 cdot (12)-2 = 48-2=46.
$$



It sounds like your other sequence is
$$
t_n = 3 cdot (-1)^n-1,
$$
if I understood you correctly.
To get the 5th term of this sequence, replace $n$ by $5$:
$$
t_n = 3 cdot (-1)^5-1 = 3 cdot (-1)^4 = 3.
$$






share|cite|improve this answer























  • what does plug in mean see am I just illiterate?
    – Sam Click Jr
    Jul 28 at 0:27










  • Don't worry, that's ok. "Plug in" means replace $n$ with the number $12$ to get the 12th term in the sequence.
    – littleO
    Jul 28 at 0:29










  • "Plug in" is a colloquialism for "Substitute the value of".
    – Euler....IS_ALIVE
    Jul 28 at 0:29










  • so when it says 5th term the n then becomes 5?
    – Sam Click Jr
    Jul 28 at 0:32










  • so the other one that I am trying to understand is like this tn=3(-1) the it has a little n-1 on the upper side of the ) of the -1. so like this tn=3(-1)n-1
    – Sam Click Jr
    Jul 28 at 0:33














up vote
0
down vote



accepted










The $n$th term of the sequence is
$$t_n=4 cdot n-2.
$$
To compute the 12th term of the sequence, just plug in $12$ for $n$:
$$
t_12 = 4 cdot (12)-2 = 48-2=46.
$$



It sounds like your other sequence is
$$
t_n = 3 cdot (-1)^n-1,
$$
if I understood you correctly.
To get the 5th term of this sequence, replace $n$ by $5$:
$$
t_n = 3 cdot (-1)^5-1 = 3 cdot (-1)^4 = 3.
$$






share|cite|improve this answer























  • what does plug in mean see am I just illiterate?
    – Sam Click Jr
    Jul 28 at 0:27










  • Don't worry, that's ok. "Plug in" means replace $n$ with the number $12$ to get the 12th term in the sequence.
    – littleO
    Jul 28 at 0:29










  • "Plug in" is a colloquialism for "Substitute the value of".
    – Euler....IS_ALIVE
    Jul 28 at 0:29










  • so when it says 5th term the n then becomes 5?
    – Sam Click Jr
    Jul 28 at 0:32










  • so the other one that I am trying to understand is like this tn=3(-1) the it has a little n-1 on the upper side of the ) of the -1. so like this tn=3(-1)n-1
    – Sam Click Jr
    Jul 28 at 0:33












up vote
0
down vote



accepted







up vote
0
down vote



accepted






The $n$th term of the sequence is
$$t_n=4 cdot n-2.
$$
To compute the 12th term of the sequence, just plug in $12$ for $n$:
$$
t_12 = 4 cdot (12)-2 = 48-2=46.
$$



It sounds like your other sequence is
$$
t_n = 3 cdot (-1)^n-1,
$$
if I understood you correctly.
To get the 5th term of this sequence, replace $n$ by $5$:
$$
t_n = 3 cdot (-1)^5-1 = 3 cdot (-1)^4 = 3.
$$






share|cite|improve this answer















The $n$th term of the sequence is
$$t_n=4 cdot n-2.
$$
To compute the 12th term of the sequence, just plug in $12$ for $n$:
$$
t_12 = 4 cdot (12)-2 = 48-2=46.
$$



It sounds like your other sequence is
$$
t_n = 3 cdot (-1)^n-1,
$$
if I understood you correctly.
To get the 5th term of this sequence, replace $n$ by $5$:
$$
t_n = 3 cdot (-1)^5-1 = 3 cdot (-1)^4 = 3.
$$







share|cite|improve this answer















share|cite|improve this answer



share|cite|improve this answer








edited Jul 28 at 7:34


























answered Jul 28 at 0:26









littleO

25.9k540100




25.9k540100











  • what does plug in mean see am I just illiterate?
    – Sam Click Jr
    Jul 28 at 0:27










  • Don't worry, that's ok. "Plug in" means replace $n$ with the number $12$ to get the 12th term in the sequence.
    – littleO
    Jul 28 at 0:29










  • "Plug in" is a colloquialism for "Substitute the value of".
    – Euler....IS_ALIVE
    Jul 28 at 0:29










  • so when it says 5th term the n then becomes 5?
    – Sam Click Jr
    Jul 28 at 0:32










  • so the other one that I am trying to understand is like this tn=3(-1) the it has a little n-1 on the upper side of the ) of the -1. so like this tn=3(-1)n-1
    – Sam Click Jr
    Jul 28 at 0:33
















  • what does plug in mean see am I just illiterate?
    – Sam Click Jr
    Jul 28 at 0:27










  • Don't worry, that's ok. "Plug in" means replace $n$ with the number $12$ to get the 12th term in the sequence.
    – littleO
    Jul 28 at 0:29










  • "Plug in" is a colloquialism for "Substitute the value of".
    – Euler....IS_ALIVE
    Jul 28 at 0:29










  • so when it says 5th term the n then becomes 5?
    – Sam Click Jr
    Jul 28 at 0:32










  • so the other one that I am trying to understand is like this tn=3(-1) the it has a little n-1 on the upper side of the ) of the -1. so like this tn=3(-1)n-1
    – Sam Click Jr
    Jul 28 at 0:33















what does plug in mean see am I just illiterate?
– Sam Click Jr
Jul 28 at 0:27




what does plug in mean see am I just illiterate?
– Sam Click Jr
Jul 28 at 0:27












Don't worry, that's ok. "Plug in" means replace $n$ with the number $12$ to get the 12th term in the sequence.
– littleO
Jul 28 at 0:29




Don't worry, that's ok. "Plug in" means replace $n$ with the number $12$ to get the 12th term in the sequence.
– littleO
Jul 28 at 0:29












"Plug in" is a colloquialism for "Substitute the value of".
– Euler....IS_ALIVE
Jul 28 at 0:29




"Plug in" is a colloquialism for "Substitute the value of".
– Euler....IS_ALIVE
Jul 28 at 0:29












so when it says 5th term the n then becomes 5?
– Sam Click Jr
Jul 28 at 0:32




so when it says 5th term the n then becomes 5?
– Sam Click Jr
Jul 28 at 0:32












so the other one that I am trying to understand is like this tn=3(-1) the it has a little n-1 on the upper side of the ) of the -1. so like this tn=3(-1)n-1
– Sam Click Jr
Jul 28 at 0:33




so the other one that I am trying to understand is like this tn=3(-1) the it has a little n-1 on the upper side of the ) of the -1. so like this tn=3(-1)n-1
– Sam Click Jr
Jul 28 at 0:33










up vote
2
down vote













If chickens laid eggs according to that rule, when you have n chickens, you have (4n - 2) number of eggs. For 1 chicken thats 4x1-2=2 eggs, for two chickens, 4x2-2=6 eggs, for n chickens, (4n-2) eggs.






share|cite|improve this answer

















  • 1




    oh wow that simple... LOL
    – Sam Click Jr
    Jul 28 at 0:42






  • 1




    thank you ALL so much
    – Sam Click Jr
    Jul 28 at 0:45














up vote
2
down vote













If chickens laid eggs according to that rule, when you have n chickens, you have (4n - 2) number of eggs. For 1 chicken thats 4x1-2=2 eggs, for two chickens, 4x2-2=6 eggs, for n chickens, (4n-2) eggs.






share|cite|improve this answer

















  • 1




    oh wow that simple... LOL
    – Sam Click Jr
    Jul 28 at 0:42






  • 1




    thank you ALL so much
    – Sam Click Jr
    Jul 28 at 0:45












up vote
2
down vote










up vote
2
down vote









If chickens laid eggs according to that rule, when you have n chickens, you have (4n - 2) number of eggs. For 1 chicken thats 4x1-2=2 eggs, for two chickens, 4x2-2=6 eggs, for n chickens, (4n-2) eggs.






share|cite|improve this answer













If chickens laid eggs according to that rule, when you have n chickens, you have (4n - 2) number of eggs. For 1 chicken thats 4x1-2=2 eggs, for two chickens, 4x2-2=6 eggs, for n chickens, (4n-2) eggs.







share|cite|improve this answer













share|cite|improve this answer



share|cite|improve this answer











answered Jul 28 at 0:39









Jack Whitelock

212




212







  • 1




    oh wow that simple... LOL
    – Sam Click Jr
    Jul 28 at 0:42






  • 1




    thank you ALL so much
    – Sam Click Jr
    Jul 28 at 0:45












  • 1




    oh wow that simple... LOL
    – Sam Click Jr
    Jul 28 at 0:42






  • 1




    thank you ALL so much
    – Sam Click Jr
    Jul 28 at 0:45







1




1




oh wow that simple... LOL
– Sam Click Jr
Jul 28 at 0:42




oh wow that simple... LOL
– Sam Click Jr
Jul 28 at 0:42




1




1




thank you ALL so much
– Sam Click Jr
Jul 28 at 0:45




thank you ALL so much
– Sam Click Jr
Jul 28 at 0:45












 

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