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Nana76 [90]
3 years ago
6

Thé nth term rule for a sequence is 4n + 7 what is the 3rd term of this sequence?

Mathematics
2 answers:
klemol [59]3 years ago
7 0

Answer:

a₃ = 19

Step-by-step explanation:

the relationship between any two terms of an arithmetic sequence (in our case the relationship between the 3rd term and nth term)  gives us this equality :

a_n - a_3 = 4(n-3)

Then

4n + 7 - a₃ = 4n - 12

Then

7 - a₃ = - 12

Then

7 + 12 = a₃

Then

a₃ = 19

Sonbull [250]3 years ago
4 0

Answer:

a₃ = 19

Step-by-step explanation:

to find the third term substitute n = 3 into the nth term rule

a₃ = 4(3) + 7 = 12 + 7 = 19

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The standard form of the equation of a circle with center (h, k) and radius r is:

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So we just need to add these numbers to where they belong.

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