Answer:
9^2 + 12^2 = x^2
81 + 144 = 225
225 ÷ 15 = 15
the answer for this question is 15
Step-by-step explanation:
Answer:
1, 3, 9, 27
Step-by-step explanation:

You need the first 4 terms, so let n = 1, and evaluate the expression. Then do the same for n = 2, n = 3, and finally n = 4.
n = 1

n = 2

n = 3

n = 4

Answer:
17000
Step-by-step explanation: