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timama [110]
3 years ago
7

What is the sum of the geometric series in which a1 = 7, r = 3, and an = 1,701?

Mathematics
1 answer:
Tema [17]3 years ago
4 0
Answer: The sum of the series is 2,548.

In a geometric series, the values are being multiplied by a constant rate. In this series, we are started at 7 and multiplying by 3.

Our series would be:
7   21   63   189   567   1701

If we add up those values, we have a total of 2,548.
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What type of number is π/2
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Answer:

Step-by-step explanation:

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integer   No

rational :  No, because pi is irrational.

irrational:  YES.  π/2 is the ratio of pi to 2, BUT pi is irrational.

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3 years ago
What is the constant of proportionality of the following equation?<br> B = 1.25C
vladimir1956 [14]

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Answer:

718\ min

Step-by-step explanation:

Let

x ----> the number of minutes

y ----> the total charge in dollars

we know that

For x>700 min

y=0.45x+40

so

For y=48.10

substitute

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solve for x

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To find out the total minutes we need to sum

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4 years ago
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ivann1987 [24]

The standard deviation of a point estimator is the <u>standard error.</u>

"The point estimate is used to estimate the exact value of any parameter. For example, an internet poll says that 45% of Americans are concerned for the environment."

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"As the researcher is unable to presume that closeness of the sample statistics parameter with respect to the parameter so researcher refers to calculate the standard error instead of point estimate."

To learn more about standard error here

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1 year ago
Write this expression in a different way. 2x-438
yaroslaw [1]
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4 years ago
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