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hjlf
3 years ago
13

Find the explicit formula for the given sequence.

Mathematics
2 answers:
DedPeter [7]3 years ago
7 0

Answer:

A

Step-by-step explanation:

given the sequence above using using two as a first term the only formula fits the sequence above is A

jok3333 [9.3K]3 years ago
7 0

Answer:

A

Step-by-step explanation:

There is a common ratio r between consecutive terms

r = 8 ÷ 2 = 32 ÷ 8 = 128 ÷ 32 = 4

This indicates the sequence is geometric with nth term ( explicit formula )

a_{n} = a₁ r^{n-1}

where a₁ is the first term and r the common ratio

Here a₁ = 2 and r = 4 , then

a_{n} = 2 . 4^{n-1} → A

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Hello There! Sorry for the late answer, but better late than never as they say! The correct answer to your query is B: A= F divided by m. Please tell me if this helps any or not.
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3 years ago
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Last year the depth of the river was 4.2 feet deep. This year it dropped 25%. Find the depth of the river this year to cross it.
Novosadov [1.4K]

Answer:

The river is 3.15 feet deep.

Step-by-step explanation:

First let's recognize what we need to find: the depth of the river

We know last year the river was 4.2 feet deep, but it dropped 25%. This means we also need to find how much it dropped. To find this, we need to know what 25% of 4.2 is. Write an equation for this.

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Hope this helps!

4 0
3 years ago
7.
Alexxx [7]

Answer:

x = 3

Step-by-step explanation:

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Adding the 2 equations term by term eliminates the y- term, that is

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x = 3

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3 years ago
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