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What is the sum of a 17term arithmetic sequence where the first term is 7 and the last term is 105?
 one year ago
 one year ago
What is the sum of a 17term arithmetic sequence where the first term is 7 and the last term is 105?
 one year ago
 one year ago

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cwrw238Best ResponseYou've already chosen the best response.2
the formula for this is Sum = ( n/2){ a + l) whre n = number of terms , a = first term and l = last term
 one year ago

marsssBest ResponseYou've already chosen the best response.0
(1057)/16=7(common difference) (105+7)(1057+7)/(14)=810
 one year ago

badATalgebraBest ResponseYou've already chosen the best response.0
833 893 913 943 these are the choices
 one year ago

badATalgebraBest ResponseYou've already chosen the best response.0
833, but i got a positvie
 one year ago

marsssBest ResponseYou've already chosen the best response.0
yes i had a mistake. sorry :)
 one year ago
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