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3 years ago

Which of the following is the rule for the geometric sequence 1, 3, 9, 27, . . .?

Mathematics

1 answer:

Serhud [2]3 years ago

6 0

Answer:

$a(n) = 1 \times {3}^{n - 1}$

Step-by-step explanation:

We started at 1
And it seems that index after index it multiplies by 3
The formula for the geometric sequence defined implicitly is a(n) =a(1)r^(n-1)

$a(n) = a(1) {r}^{n - 1} \\ a(n) = 1 \times {3}^{n - 1}$

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Alex787 [66]

Answer:

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2 years ago

Read 2 more answers

If a,b,c,d, and e are non negative such that x^6-289x^4-x^2+289=(x-a)(x+b)(x_c)(x+d)(x^2+ex+1), what is the value of a+b+c+d+e?

Irina18 [472]

Answer:

Step-by-step explanation:

Hello,

If $X=x^2$ it becomes

$X^3-289X^2-X+289=(X^2-1)(X-289)$

and $289=17^2$

$X^2-1=(X-1)(X+1)=(x^2-1)(x^2+1)=(x+1)(x-1)(x^2+1) \\\\x^2-289=x^2-17^2=(x-17)(x+17)$

So,

$x^6-289x^4-x^2+289=(x^2-1)(x^2+1)(x^2-289)=(x-1)(x+1)(x+17)(x-17)(x^2+1)$

a = 1

b = 1

c = 17

d = 17

e = 0

Then a + b + c + d + e = 36

Thanks

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2 years ago

Which which value is not located between square root 9/3 2n

tangare [24]

3 and -3 are said to be the square roots of 9. A square root is written with a radical symbol √ and the number or expression inside the radical symbol, below denoted a, is called the radicand. ... Negative numbers don't have real square roots since a square is either positive or 0.

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3 years ago

Harry's parrot is 11 years older than his cat.

Sav [38]

Answer:

The answer to your question is: P = 17 years

Step-by-step explanation:

Data

Parrot = 11 years older than the cat

C = cat age

P = parrot age

P = ? when C = 6

Process

P = C + 11

P = 6 + 11

P = 17 years

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3 years ago

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Answer:

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Step-by-step explanation:

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