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christinewilliams
Group Title
given the terms a1 = 5 and a 4= 14 of an arithmetic sequence what is a20
 one year ago
 one year ago
christinewilliams Group Title
given the terms a1 = 5 and a 4= 14 of an arithmetic sequence what is a20
 one year ago
 one year ago

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ghazi Group TitleBest ResponseYou've already chosen the best response.1
\[T _{20}=a _{1}+(n1)d\] we need d
 one year ago

ghazi Group TitleBest ResponseYou've already chosen the best response.1
now, \[a _{4}=a _{1}+(n1)d, a _{4}=5+(41)d, 14=5+(3)d\] find d and you will have T 20 :)
 one year ago

ghazi Group TitleBest ResponseYou've already chosen the best response.1
\[T _{20}=5+(201)d\]
 one year ago

christinewilliams Group TitleBest ResponseYou've already chosen the best response.1
wait..... it is multiple choice it could be 62, 65,171, 185
 one year ago

ghazi Group TitleBest ResponseYou've already chosen the best response.1
well calculate it :) your d=3 i guess then put d in the equation and find it :)
 one year ago

christinewilliams Group TitleBest ResponseYou've already chosen the best response.1
wait what?? so t20=5+(19)3
 one year ago

christinewilliams Group TitleBest ResponseYou've already chosen the best response.1
I got 62
 one year ago

ghazi Group TitleBest ResponseYou've already chosen the best response.1
thats the answer :)
 one year ago

christinewilliams Group TitleBest ResponseYou've already chosen the best response.1
awesome thank you!!! can you help me with more!!! i am so behind in my math class!
 one year ago

ghazi Group TitleBest ResponseYou've already chosen the best response.1
keep posting :) don't follow up
 one year ago
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