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3 years ago

3, 9, 81, 243 . . . is an example of an infinite arithmetic series.. True or false?

Mathematics

2 answers:

oee [108]3 years ago

4 0

Answer: The answer is False.

Step-by-step explanation: In an arithmetic series with first term $a$ and common difference $d$ , the n-th term is given by

$a+(n-1)d.$

The given sequence is - 3, 9, 27, 81, 243, ...

Here, $a=3$ we cannot find the value of $d$ , since 9-3≠243-81.

So, the given sequence is not an arithmetic sequence. Furthermore, it is an infinite geometric sequence with first term 3 and common ration also 3.

Thus, the answer is False.

Mumz [18]3 years ago

3 0

The statement “3, 9, 81, 243 is an example of an infinite arithmetic series” is FALSE. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

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Iris is a botanist who works for a garden that many tourists visit. the function f(s) = 2s + 25 represents the number of flowers

7nadin3 [17]

A function is said to be a composite function when a function is written in another function. The composite function that represents the number of flowers is f(w)=50w+25 and the number of flowers for 30 weeks is 1525.

Given that:

f(s)=2s+25

s(w)=25w

The number of flowers to bloom over w weeks is calculated using the following composite function: f(w)

f(s)=2s+25

Replace s with s(w)

f(s(w))=2(s(w))+25

Substitute (w)=25w

f(s(w))=2(25w)+25

f(s(w))=50w+25

Hence:

f(w)=50w+25

The units of the measurement of f(w) are flowers

The number of flowers for 30 weeks means:

w=30

So, we have:

f(w)=50w+25

f(30)=50 * 30+25

f(30)=1525

Hence, the number of flowers for 30 weeks is 1525

Learn more about composite functions here:brainly.com/question/10687170

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2 years ago

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Bas_tet [7]

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Step-by-step explanation:

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d1i1m1o1n [39]

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Step-by-step explanation:

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