Answer:
9841
Step-by-step explanation:
Each time the number of shaded triangles is multiplied by 3. So this is a geometric series:
an = 1 (3)ⁿ⁻¹
The sum of the first n terms of a geometric series is:
S = a₁ (1 - rⁿ) / (1 - r)
Here, a₁ = 1, r = 3, and n = 9.
S = 1 (1 - 3⁹) / (1 - 3)
S = 9841
Answer:
...
Step-by-step explanation:
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Answer:
your adding 4
Step-by-step explanation:
10
14
18
22
26
30
34
(x - 5) years old
Present Age:
[<u>Ago means before the present</u>]
5 years Ago: