What is the recursive rule for an=3n+5

a. a1=5; an=an−1+3

b. a1=8; an=an−1+5

c. a1=3; an=an−1+5

d. a1=8; an=an−1+3

Option d is correct.

Step-by-step explanation:

We have given a formula

We will put different values of n so, as to get

from the given formula

When n =1  we get

When n=2 we get

When n=3 we get

We can see that next term is 3 more than the previous term

Hence,

Therefore, Option d is correct.

the answer is b i just did that

step-by-step explanation:

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.