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LenaWriter [7]
3 years ago
9

Is this an arthimatic sequence ? 10,20,40,80

Mathematics
1 answer:
elena55 [62]3 years ago
7 0

An arithmetic sequence has a common difference between each term in the series. A geometric sequence has a common ratio between each term in the series.


First, let's determine the rate of change between each term.

10, 20 = multiplied by 2

20, 40 = multiplied by 2

40, 80 = multiplied by 2


The terms appear to have a common ratio of 2, making this a geometric sequence. Therefore, this is NOT an arithmetic sequence.

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What is the midpoint of AB?
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Answer:

(-4, -\frac{1}{2})

Step-by-step explanation:

Hi there!

We are given the line segment, with the end points AB

The coordinates of A are (-5, -4), and the coordinates of B are (-3, 3).

We want to find the midpoint of the line segment AB

The midpoint formula is given as (\frac{x_1+ x_2}{2}, \frac{y_1 + y_2}{2}), where (x_1, y_1) and (x_2, y_2) are coordinates

We have two coordinates, which is what we need, but let's label their values to avoid any confusion:

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Now substitute those values into the formula:

(\frac{x_1+ x_2}{2}, \frac{y_1 + y_2}{2})

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Now simplify the numerator and denominator

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