The given series is
![3,8,13,18,23,28,33,38,...](https://tex.z-dn.net/?f=3%2C8%2C13%2C18%2C23%2C28%2C33%2C38%2C...)
Where the first term, a , is 3.
And the difference is constant, that is
![8-3=13-8=18-13=5](https://tex.z-dn.net/?f=8-3%3D13-8%3D18-13%3D5)
So the constant difference, d is 3.
Since the difference is constant, so the given series is arthmetic.
And for explicit rule, we use the formula of nth term, which is
![a_{n}= a+(n-1)d](https://tex.z-dn.net/?f=a_%7Bn%7D%3D%20a%2B%28n-1%29d)
Substituting the values of a and d, we will get
![a_{n} = 3+(n-1)5 \\ a_{n} = 3+5n-5 \\ a_{n} = 5n -2](https://tex.z-dn.net/?f=a_%7Bn%7D%20%3D%203%2B%28n-1%295%0A%5C%5C%0Aa_%7Bn%7D%20%3D%203%2B5n-5%0A%5C%5C%0Aa_%7Bn%7D%20%3D%205n%20-2)
Recursive rule is used to tell us the relationship between previous and current term. And the required rule is
![a_{n} = a_{n-1} +5 , a_{1} = 3](https://tex.z-dn.net/?f=a_%7Bn%7D%20%3D%20a_%7Bn-1%7D%20%2B5%20%2C%20a_%7B1%7D%20%3D%203)
Answer:
3.5 or 3 1/2
Step-by-step explanation:
2 + (3*1/2) = 3.5, which is equal to 3 1/2.
314....1020.50/3.25 the decimal moves two places to the right in both numbers