Answer:
8
Step-by-step explanation:
2x2 is 4 and x 2 is 8. I think im right?
Step-by-step explanation:
Initially, there's only 1 letter.
Tania sends the letter to 4 friends.
Each friend sends a letter to 4 more friends (4 × 4 = 16).
Each of those friends sends to 4 more friends (16 × 4 = 64).
The pattern is 1, 4, 16, 64, etc.
This is a geometric sequence. The first term is 1 and each term is 4 times the previous term.
a₁ = 1
aₙ = 4 aₙ₋₁
The explicit formula is:
aₙ = 1 (4)ⁿ⁻¹
Answer:
The quotient ix 3x - 1.
Explanation:
Use Long division:
3x - 1 <------------quotient.
---------------------
x + 3) 3x^2 + 8x + 3
3x^2 + 9x
-------------
-x + 3
-x - 3
------
6 <---------remainder.
If n is 2, you substitute 2 for n and multiply 5(2)+8= 10 +8 = 18
