Respuesta :

mathstudent55

Answer:

See below.

Step-by-step explanation:

Formula:

[tex] a_n = 3(n + 4) [/tex]

First term: n = 1

[tex] a_1 = 3(1 + 4) = 15 [/tex]

Second term: n = 2

[tex] a_2 = 3(2 + 4) = 18 [/tex]

Third term: n = 3

[tex] a_3 = 3(3 + 4) = 21 [/tex]

Fourth term: n = 4

[tex] a_4 = 3(4 + 4) = 24 [/tex]

Tenth term: n = 10

[tex] a_{10} = 3(10 + 4) = 42 [/tex]

The explicit formula is [tex]a_{n}[/tex] = 4 + (n - 1)3 first four terms will be 4, 7, 10, and 13 and the 10th term will be 31.

What is Arithmetic progression?

The difference between every two successive terms in a sequence is the same this is known as an arithmetic progression (AP).

The arithmetic progression has wider use in mathematics for example sum of natural numbers.

Natural number = 1,2,3,4,5,6,7,8...

Now it has the same difference between any two consecutive terms d =2-1 = 3-2.

Let's say

First term = 4

Common difference = 3

Then

The nth term of the AP will be

[tex]a_{n}[/tex] = 4 + (n - 1)3

First term: n = 1

a₁ = 4

Second term: n = 2

a₂ = 7

Third term: n = 3

a₃ = 10

Fourth term: n = 4

a₄ = 13

Tenth term: n = 10

a₁₀ = 31

Hence, the explicit formula is [tex]a_{n}[/tex] = 4 + (n - 1)3 first four terms will be 4, 7, 10, and 13 and the 10th term will be 31.

For more about Arithmetic progression,

https://brainly.com/question/20385181

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