I need help Simplify the expression 63 + 5(4 − 2). 28 36 226 234
1 answer:
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Answer:
The sum of the first nine terms of the sequence is 74.44.
Step-by-step explanation:
Geometric sequence concepts:
The nth term of a geometric sequence is given by the following equation.
In which r is the common ratio.
This can be expanded for the nth term in the following way:
In which is the first term.
Or even:
The sum of the first n terms of a geometric sequence is given by:
Finding the common ratio:
Finding the first term:
Sum of the first nine terms:
The sum of the first nine terms of the sequence is 74.44.