This is a geometric sequence with first term 1 and common ratio -1/2. r=-1/2.
a(n) = a(1)*(r)^(n-1).
Check: If n=2 our formula must return -1/2. Does it?
a(2) = 1(-1/2)^(2-1) = (-1/2)^1 = - 1/2. Yes.
a(3) should be 1/4. Is it? a(3) = (-1/2)^(3-1) = 1/4 Yes.
Then a(8) = (-1/2)^(8-1) = (-1/2)^7 = -1 / 2^7 = -1/128 (answer)
Answer:
D) (2,5)
Step-by-step explanation:
The intersection of the 2 lines.
pls give brainliest.
Answer:
The correct answer is B=0.0262
Step-by-step explanation:
91÷3525 = 0.0262
The attached picture below gives a step by step explanation of how I arrived at my answer.
Please let's endeavor to always upload complete questions to avoid wrong answers.
Answer:
The asnwer is the first one:
Step-by-step explanation:
You do this
x = 3.242424242424
100x = 324.24242424242424242424
-x
= 329/99
3-24/99
3 8/33
