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Ede4ka [16]
3 years ago
11

Differentiate between:1.Crest and trough.2. Infrasound and ultrasound.​

Mathematics
1 answer:
Vinil7 [7]3 years ago
5 0

Answer:

A crest is the highest point of a wave.

A trough is the lowest point of a wave.

Infrasound is sound below the limit that humans can hear, below 20 Hz.

Ultrasound is sound above the limit that humans can hear, above 20,000 Hz.

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Answer:

4th graph

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago
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The graph of a sinusoidal function intersects its midline at (0,5) and then has a maximum point at (\pi,6)
Natalija [7]
First, let's use the given information to determine the function's amplitude, midline, and period. 

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The midline intersection is at y=5 so this is the midline. 

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The maximum point is π units to the right of the midline intersection, so the period is 4 * π.
 
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a sin(bx)+d

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f(x)1 sin   (\dfrac{1}{3}x) +5  = Solution
8 0
3 years ago
Find r <br> 0.5(r+2.75)=3
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Answer:

r=3.25

Step-by-step explanation:

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