3 years ago

Let n be the middle number of three consecutive even integers. Write an expression for the sum of these integers.

1 answer:

6 0

N - 1 = 1st number
n = middle number
n + 1 = 3rd number

(n - 1) + n + (n + 1) = 3n <== ur expression

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Sauron [17]

I think the answer is C.... I’m not sure tho.

4 0

2 years ago

dolphi86 [110]

I believe it would be the first choice

Hope that helps!

4 0

2 years ago

Basile [38]

Arithmetic sequences have a common difference between consecutive terms.

Geometric sequences have a common ratio between consecutive terms.

Let's compute the differences and ratios between consecutive terms:

Differences:

$0.4-0.2 = 0.2,\quad 0.6-0.4=0.2,\quad 0.8-0.6=0.2,\quad 1-0.8=0.2$

Ratios:

$\dfrac{0.4}{0.2}=2,\quad \dfrac{0.6}{0.4} = 1.5,\quad \dfrac{0.8}{0.6} = 1.33\ldots, \quad\dfrac{1}{0.8}=1.25$

So, as you can see, the differences between consecutive terms are constant, whereas ratios vary.

So, this is an arithmetic sequence.

3 0

2 years ago

lidiya [134]

Your answer is point g and h

6 0

3 years ago

garri49 [273]

2nd option

hope it helps...!!!

8 0

1 year ago