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NemiM [27]
3 years ago
7

Given the arithmetic sequence where an= 3 + 2(n-1), what is the domain for n?​

Mathematics
1 answer:
lakkis [162]3 years ago
4 0

Answer:

The set of all positive integers equal to or greater than 1

Step-by-step explanation:

n can take on the integer values 1 ... ∞

The formula for the nth term is a(n) = a(1) + 2(n - 1)

First term:  n = 1.  Then a(1) = 3 + 2(0) = 3 (as expected).

5th term:  n = 5.  Then a(5) = 3 + 2(5 - 1) = 3 + 8 = 11

...

and so on.

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  56.45

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3 years ago
A car purchased in 2014 was worth $21,000. It has depreciated at an annual rate of 8.5%. what will its value be in 2021?
liraira [26]

Answer: The value of the car in 2021 will be $11,276.31.

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If r is the depreciation rate and P is the initiial amount , then the amount after t years is given by:-

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Plug all the values in the formula, we get

A= 21000(1-\dfrac{8.5}{100})^7\\\\\Rightarrow\ A=21000(1-0.085)^7\\\\\Rightarrow\ A= 21000(0.915)^7\\\\\Rightarrow\ A= 21000(0.5369670)\approx11276.31

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6 0
3 years ago
(2x-1) (4x+1) solve equation
ElenaW [278]
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Do the following:

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You get:

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Final result:

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8 0
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