Performing Operations with Complex Numbers

Question 1

The coefficient 13.2 represents the of the circular area affected by the seismic wave.

Revolt · Accepted Answer

diameter

Question 2

The equation r = 3 represents graph .

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B

Question 3

The equation represents graph .

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D

Question 4

What is the relationship between n and the number of petals shown in the sine rose curve?

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2n petals when n is even and n when n is odd

Question 5

If a = 0 and b ≠ 0, then the graph is shaped like a .

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circle with diameter b

Question 6

What is the rectangular form of r = −2 sin(θ)?

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x2 + (y + 1)2 = 1

Question 7

A sound engineer is positioning a cardioid microphone for a music concert. Which equation corresponds to a microphone facing the correct direction?

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r = 4 − 4 cos(θ)

Question 8

If a < b, then the graph is shaped like a .

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closed curve with a loop inside it

Question 9

If a > b, then the graph is shaped like a .

Revolt · Accepted Answer

closed curve with a dimple

Performing Operations with Complex Numbers Answers