Answer:
1. is 27/20
2.108/20
3.12/5
4.3
5.5 2/5
Step-by-step explanation:
1. 3/5=12/20 and 3/4=15/20
2.27/20 x 4/1
3.3/5 x 4/1
4.3/4 x 4/1
5.2+3 2/5
Explicit rule formula: a(n) = a · rⁿ⁻¹
a(n) = ⁿth term
a = first term
r = common ratio
ⁿ⁻¹ = the previous term
In the recursive rule a₁ = 2/3; aₙ = 9 · aₙ₋₁ the first term is 2/3 and the common ration is 9. We can fill in the explicit formula with what we know.
Thus, the correct answer is [ aₙ = 2/3 · 9ⁿ⁻¹ ]
Best of Luck!
Answer:
Step-by-step explanation:
a1 = 2/3
an = 9*a(n-1)
a2 = 9 *a1 = 9* 2/3
a3 =9*a2 = 9 *(9*2/3) = 9²*2/3
a4 = 9*a3 = 9* (9²*2/3) = 9³*2/3
do I need to find out what two numbers times together to get 5, and add to get -6? An explanation and answer would be great :/