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Law Incorporation [45]
4 years ago
9

Which series has a sum of 20?

Mathematics
1 answer:
alexandr402 [8]4 years ago
5 0

Answer:

  see below

Step-by-step explanation:

The sum of an infinite series with first term "a" and common ratio "r" is ...

  S = a/(1 -r) . . . . . for |r| < 1

Then the sums for the given answer choices are ...

  A: 5/(1 -3/4) = 20 . . . . . the answer of choice

  B: 4/(1 -5/6) = 24

  C: 4/(1 -1/5) = 5

  D: 10/(1 -1/5) = 12.5

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almond37 [142]

The image of the point (0,5) after a rotation of 180° counterclockwise about the origin is (0, -5).

<h3>What is geometric transformation?</h3>

It is defined as the change in coordinates and the shape of the geometrical body. It is also referred to as a two-dimensional transformation. In the geometric transformation, changes in the geometry can be possible by rotation, translation, reflection, and glide translation.

The question is incomplete.

The complete question is:

What is the image of the point (0,5) after a rotation of 180° counterclockwise about the origin?

The rule for the above transformation:

(x, y) → (-x, -y)

(0, 5) → (0, -5)

Thus, the image of the point (0,5) after a rotation of 180° counterclockwise about the origin is (0, -5).

Learn more about the geometric transformation here:

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1 year ago
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Step-by-step explanation:

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3 years ago
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