Answer:28.5
Step-by-step explanation:
Answer: Aₙ = Aₙ₋₁*3; where A₀ = 2.5
Step-by-step explanation:
Let's try with some known sequences:
Arithmetic.
The difference between consecutive terms is constant:
7.5 - 2.5 = 5
22.5 - 7.5 = 15
We can already see that it is not an arithmetic sequence.
Geometric:
The ratio between consecutive terms is constant.
7.5/2.5 = 3
22.5/7.5 = 3
67.5/22.5 = 3
...
We can already see that this is a geometric sequence.
Then we can write the n-th term as:
Aₙ = Aₙ₋₁*3, where A₀ = 2.5
<span>Area of ABCD = 1/2(b1+b2) h
= 1/2(5+5) </span><span>√75
= 5 </span><span>√75
= 25</span><span>√3
answer
Area = 25</span><span>√3</span>
Answer 0 because you need to use inverse operations