Which equation can be used to answer the question below and a marked 15% of the emails in her inbox as important if she has 180
1 answer:
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Answer:
Step-by-step explanation:
The sequence above is a geometric sequence.
The common ratio (r) =
The common ratio < 1, therefore, the formula for the sum of nth terms of the sequence would be:
a1 = 3
r = -2
n = 6
Plug in the values into the formula
Step-by-step explanation:
While subtracting , the sign of each term of second expression changes & remove the parentheses.
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Combine like terms. Like terms are those which have the same base. Only coefficients of like terms can be added or subtracted.
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In standard from , the expression should be written in such a way that the power of variables goes from highest to lowest.
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