Trigonometry functions is often employed in taking the measurement of the level or the pitch of a sound wave or musical note.
The change of amplitude of a sound wave's amplitude is linked to the change in pressure that occurs due to the wave measured at a given location.
Frequency tells the number of waves that pass a fixed location in a specific time frame.
<h3>How does sound waves relate to trigonometric functions?</h3>
Sound engineers uses the basic laws of trigonometry via sine and cosine graphs.
Note that all sounds can be broken down into a lot of sine waves, as sine waves comes together to form sounds.
Therefore, Trigonometry functions is often employed in taking the measurement of the level or the pitch of a sound wave or musical note.
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Answer:
8
Step-by-step explanation:
Step 1: Set up equation
-1 = 7 - x
Step 2: Subtract 7 on both sides
-8 = -x
Step 3: Divide both sides by -1
x = 8
So 7 subtracted by 8 equals -1.
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Answer:
2.85 UK£
Step-by-step explanation:
To calculate the final price after the percent off, subtract the savings amount from the initial price. For example, calculate the final price of a $40 item with 15% off – remember this is a $6 savings.
Answer:
2 & 8
-4 & -4
Step-by-step explanation:
x and y are the numbers, as per question:
x= 4+2y and xy= 16
- y(4+2y)= 16
- 2y²+4y=16
- y²+2y - 8= 0
- y²+2y+1 =9
- (y+1)²=9
- y+1=3 ⇒ y= 2 ⇒ x= 4+2*2= 8
- y+1= -3 ⇒ y= -4 ⇒ x= 4+2*(-4)= -4