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anonymous
 one year ago
HELP PRECALC MEDALS
1.) Find an equation for the nth term of the arithmetic sequence.
a14 = 33, a15 = 9
an = 579 + 42(n + 1)
an = 579 + 42(n  1)
an = 579  42(n + 1)
an = 579  42(n  1)
2. Find an equation for the nth term of the arithmetic sequence.
15, 6, 3, 12, ...
an = 15 + 9(n + 1)
an = 15 x 9(n  1)
an = 15 + 9(n + 2)
an = 15 + 9(n  1)
3. Find an equation for the nth term of the sequence.
3, 12, 48, 192,
an = 4 3n + 1
an = 3 4n  1
an = 3 4n
an = 4 3n
anonymous
 one year ago
HELP PRECALC MEDALS 1.) Find an equation for the nth term of the arithmetic sequence. a14 = 33, a15 = 9 an = 579 + 42(n + 1) an = 579 + 42(n  1) an = 579  42(n + 1) an = 579  42(n  1) 2. Find an equation for the nth term of the arithmetic sequence. 15, 6, 3, 12, ... an = 15 + 9(n + 1) an = 15 x 9(n  1) an = 15 + 9(n + 2) an = 15 + 9(n  1) 3. Find an equation for the nth term of the sequence. 3, 12, 48, 192, an = 4 3n + 1 an = 3 4n  1 an = 3 4n an = 4 3n

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misssunshinexxoxo
 one year ago
Best ResponseYou've already chosen the best response.0Kindly separate these questions or tell us what you believe the answer is

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0(Note: given two point. That can be an exponential function  geometric sequence, or a linear function  arithmetic sequence. However, I conclude from the answer choices that this #1 is arithm. sequence.)

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0\(\large\color{black}{ \displaystyle a_{14}=33 }\), \(\large\color{black}{ \displaystyle a_{15}=9 }\) since we are talking about a geometric sequence \(\large\color{black}{ \displaystyle {\rm d}=a_{15}a_{14}=9(33)=? }\)

SolomonZelman
 one year ago
Best ResponseYou've already chosen the best response.0because in geometric sequence, d, the common difference between the terms is `(a term)  (a term before it)` so, \(\large\color{black}{ \displaystyle {\rm d}=a_{n1}a_{n}={\small(\rm in~this~case)}~~a_{15}a_{14}=9(33)=? }\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@SolomonZelman an = 579 + 42(n  1) (?)
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