Answer:
do you have any answers to choose from?
21 rounded to the nearest 10 is 20 :)
Answer:
<h2>
5</h2>
Step-by-step explanation:

<span>x(t-u) = 3t
dividing both sides by (t-u):
So.. </span><span><em>x = 3t/(t-u)</em></span>
Answer:
Step-by-step explanation:
<u>According to sequence we observe:</u>
- the first term is a₁ = 1
- the common ratio is r = 2/7
<u>Equation of nth term of GP:</u>
<u>Substitute to get:</u>
- aₙ = 1*(2/7)ⁿ⁻¹ = (2/7)ⁿ⁻¹
Correct choice is A