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:
y = 1/2x + 5
Step-by-step explanation:
Plug it in to double check, this is the correct answer.
(x-6) (x-2) is our factored answer
Answer:
Step-by-step explanation:
1/2 + 1/3 Find the like denominator, in this case, is six (2x3=6) 3/6 + 2/6 = 5/6 (the amount he ate in total) 6/6 - 5/6 = 1/6 (what's left) Hope this helps!
