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torisob [31]
3 years ago
8

I need help please. Honestly I barely understand this.

Mathematics
2 answers:
Contact [7]3 years ago
6 0

Answer:

4th option

Step-by-step explanation:

The nth term of a geometric sequence is

a_{n} = a₁ (r)^{n-1}

where a₁ is the first term and r the common ratio

To find a₁ use a₁₂ = - 12288 , then

a₁ (2)^{11} = - 12288 , that is

a₁ × 2048 = - 12288 ( divide both sides by 2048 )

a₁ = - 6

Then the explicit formula is

a_{n} = - 6 . 2^{n-1}

Mariana [72]3 years ago
3 0

Answer:

- 12288 \div  {2}^{11}  =  - 6 \\ forth \: answer \: is \: correct

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Answer:

g(2) = 27 is the answer.

Step-by-step explanation:

If the function is g(x) = (5 - x)³

By expanding (5 - x)³ = 5³-3.5²x + 15x² -x³

g(x) = 125 - 75x + 15x² - x³

Now g(2) = 125 - 75×2 + 15×(2)² - 2³

        g(2) = 125 - 150 + 60 - 8

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Or directly putting the value x = 2 in g(x) we get

g(2) = (5 - 2)³ = 3³ = 27

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Solve:

To solve, you have to get one of this equations into a Ax+By=C equation form, standard equation. Let’s change y=x+4 into a standard equation.

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Now let’s substitute.

take the standard equation and plug in y which is x+4 since there is a equation meaning it’s y=x+4


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Answer:

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