Which explicit formula can be used to find the number of rabbits in the nth generation ?

A

Step-by-step explanation:

Let's check

The formula is 3 *6^(n-1)

The first generation had 3 rabbits

3*6(1-1) = 3*6^0 = 3*1 =3

That works

Try it again with the 2nd generation

n is the number of generation

3*6^(2-1)= 3*6^1 = 18

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We can deduce the formula

The initial number of rabbits is 3

Each time we multiply by 6

So for the generation number n the formula will be :

3*6^(last generation-first generation)

3*6^(n-1)

A. an = 3(6)^(n-1)

Step-by-step explanation:

1st generation: n = 1:

a1 = 3*6^(1-1) = 3*6^0

= 3

n = 2:

a2 = 3*6^2-1

= 3*6

=18

n = 3

a3 = 3*6^(3-1)

= 3*6^2

= 106.

nothjing

step-by-step explanation:

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

happy to

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