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malfutka [58]
3 years ago
5

Can the set of numbers 8,12,4 make a triangle? And if it can, does it make a right triangle

Mathematics
1 answer:
bagirrra123 [75]3 years ago
4 0

Answer:

  No

Step-by-step explanation:

The sum of the shorter two lengths is exactly equal to the longer length. The "triangle" made by these segments will look like a line segment of length 12. It will have zero area.

Many authors would tell you this is <em>not a triangle</em>. (Others will tell you it is a triangle—a degenerate case.)

_____

These numbers are an arithmetic sequence. The ratio of lengths is 1 : 2 : 3. The only arithmetic sequence of side lengths that makes a right triangle are those in the ratio 3 : 4 : 5.

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Which of the following illustrates a phase shift?
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<u>Answer:</u>

A. y = -2 - cos(x-π)


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<u>The general form of the trig equation is:</u>

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<u>Now, let's check the choices:</u>

<u>A. y = -2 - cos(x-π)</u>

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Therefore, the function has a phase shift of π


<u>B. y = 3 cos(4x)</u>

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<u>C. y = tan(2x)</u>

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Therefore, the function has no phase shift


<u>Based on the above,</u> the correct answer is A


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