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anonymous
 one year ago
The simple formula for the nth term of an arithmetic sequence is an = 4n + 16. What is the explicit formula corresponding to the simple formula?
A.an = 4 + (n  1)(16)
B.an = 16 + (n  1)(4)
C.an = 16 + 4n
D.an = 20 + (n)(4)
E.an = 20 + (n  1)(4)
anonymous
 one year ago
The simple formula for the nth term of an arithmetic sequence is an = 4n + 16. What is the explicit formula corresponding to the simple formula? A.an = 4 + (n  1)(16) B.an = 16 + (n  1)(4) C.an = 16 + 4n D.an = 20 + (n)(4) E.an = 20 + (n  1)(4)

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welshfella
 one year ago
Best ResponseYou've already chosen the best response.1where d = common difference and a1 = first term

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1the coefficient of n is d in the explicit formula so that makes d = 4 but what value will a1 have?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1why do you say its not b?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1oh i see  no its not b

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1simplif each of the options and see if you get 4n + 16

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0how when its already 16+4n

welshfella
 one year ago
Best ResponseYou've already chosen the best response.120 + (n  1)4 = 20 + 4n  4 = ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the 4 will cancel out

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so it will be left with 2o+44n then you divide both by 4

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1you need the explicit formula where you can easily pick out the first term and the common difference

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1theres only 1 left lol

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1e = 20 + (n  1)4 = 10 + 4n  4 = 4n + 16 so its e

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1* that is 20 + 4n  4 in second line

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1 well it simplifies back to 4n + 16 and a1 + (n  1)d is the explicit formula

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ill tag you one my other one
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