Ithink it is d, can someone tell me if i'm right? chenoa starts with $250 in her savings account. each month she adds $15. which recursive function rule models the total amount in chenoa’s savings account at the end of each month? a. a n =15⋅ a n−1 and a 1 =250 b. a n =15+ a n−1 and a 1 =250 c. a n =250+ a n−1 and a 1 =15 d. a n =250⋅ a n−1 and a 1 =15

Choice B)

an = 15 + a(n-1)

a1 = 250

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The variable "a" is used to represent the terms. Since we have infinitely many terms to worry about, we won'd use "b, c, d, etc" for the other terms or else we'd run out of letters. So instead, we just stick a number next to "a" to help keep track of the terms

a1 = first term, a2 = second term, a3 = third term, etc

The first term is 250 because Chenoa starts off with $250, so a1 = 250. The answer is between A and B at this point.

The recursive step is how we generate each term. In plain english, the recursive step would be "add 15 to each term to get the next term". In an informal equation, it would look like this

term = (previous term) + 15

So that is why the nth term is

which means "to get the nth term, we add 15 to the previous (n-1)st term"

This is why choice B is the answer

the one that has a slope of 1/2 and is positive.

step-by-step explanation: 2 buckets 1 trip ; 4 buckets 2 trips and so on.

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540