Answer:

Step-by-step explanation:
The given sequence is 3,15,75,375,...
The first term of this geometric sequence is

The common ratio is

The explicit formula is given by:

We plug the first term and common ratio into the formula to get:

Answer: x=-2
Step-by-step explanation:
First subtract 4 from both sides
Sqrt(x+3)=1
Then square both sides
X+3=1
Then subtract 3
X=-2
Hope this helps!
Answer:
the answer to your question is 7.5
Answer: 70
V = 15.14/3 = 5.14 = 70 (in³)
Step-by-step explanation: