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topjm [15]
3 years ago
5

Which of the following is the correct expanded form for the series below?

Mathematics
2 answers:
alexandr1967 [171]3 years ago
8 0

Answer:

The correct option is A) (7+3\cdot 1)+(7+3\cdot 2)+(7+3\cdot 3)+(7+3\cdot 4).

Step-by-step explanation:

Consider the provided series.

\sum_{n=1}^{4}(3n+7)

Substitute the value of <em>n</em> = 1,2,3 and 4 respectively.

(3\cdot 1+7)+(3\cdot 2+7)+(3\cdot 3+7)+(3\cdot 4+7)

Which can be written as:

(7+3\cdot 1)+(7+3\cdot 2)+(7+3\cdot 3)+(7+3\cdot 4)

Therefore, the correct option is A) (7+3\cdot 1)+(7+3\cdot 2)+(7+3\cdot 3)+(7+3\cdot 4).

mixer [17]3 years ago
7 0

Answer:

A.

Step-by-step explanation:

four terms are needed. 1-4

so that eliminates bottom 2 choices

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