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2 years ago

10

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

correct direction? O r = -4 + 4 sin(0) O r = 4 - 4 sin(0) O r = -4 + cos(0) Acos Or = 4 - 4 cos(0)

1 answer:

Flura [38]2 years ago

5 0

Answer:

D r = 4 − 4 cos(θ)

Step-by-step explanation:

Right on edge

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Zinaida [17]

Answer:

y = -1000x +11000

Step-by-step explanation:

<u>Given:</u>

(x, y) = (sales price, number sold) = (3, 8000), (6, 5000)

<u>Find</u>:

slope-intercept equation for a line through these points

<u>Solution</u>:

When given two points, it often works well to start with the 2-point form of the equation for a line.

y = (y2 -y1)/(x2 -x1)(x -x1) +y1

Filling in the given points, you have ...

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