Answer:
13
Step-by-step explanation:
Put n as 4

Hope this helps :)
Answer:
37.170
Step-by-step explanation:
<h2>is hard to explain uwu</h2>
Answer:
S12 for geometric series: (-7.5) + 15 + (-30) + ... would be: 10237.5
Step-by-step explanation:
Given the sequence to find the sum up-to 12 terms

As we know that
A geometric sequence has a constant ratio 'r' and is defined by


















∵ 



Thus, S12 for geometric series: (-7.5) + 15 + (-30) + ... would be: 10237.5
Answer:
39.6 is the answer.
Step-by-step explanation:
280.5 - 240.9
Subtract :
280.5 - 240.9
= 39.6
Step-by-step explanation:
3q - 1 = 3(1) - 1 = 2
3q -1 = 3(2)- 1= 5
10/p = 2 10/p = 5
p= 5 p= 2 (5-2=3, so 10/p is correct)
q=5, 3(5) -1 = 14
10/p = 14
p = 0.71??