4 - 8 = -4
A negative number is alwats at the left in a horizontal line.
Let's try to rapresent it.
-4 -3 -2 -1 0 +1 +2 +3 +4
So, you count from +4 to -4
Your answer is "8 units to the left of 4"
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:
He earned $114 in interest.
The final amount in the account is $874
Step-by-step explanation:
Initial balance (b): $760
Interest rate (i): 0.05
Period (n): 3 months
Simple interest applications yield the same amount in interest every period. Therefore, the total simple interest earned can be defined by:
![I = n*B*i\\I= 3*760*0.05\\I=114](https://tex.z-dn.net/?f=I%20%3D%20n%2AB%2Ai%5C%5CI%3D%203%2A760%2A0.05%5C%5CI%3D114)
The final amount (A) in the account is the initial balance plus the interest earned in 3 months.
![A = 760 +114\\A=874](https://tex.z-dn.net/?f=A%20%3D%20760%20%2B114%5C%5CA%3D874)
He earned $114 in interest and the final amount in the account is $874
Answer:
Top graph on the left
Step-by-step explanation:
f(x) =2(3)^x
Let x = 1
f(1) =2(3)^1
= 2 *3 = 6
(1,6)