Answer:
-56
Explanation:
From the equation:
0.75(x + 20) = 2 + 0.5(x - 2)
Open brackets
0.75x + 15 = 2 + 0.5x - 1
Collect like terms
0.75x - 0.5x = 2 - 1 - 15
0.25x = - 14
Divide both sides by 0.25
x = -56
Based on the standard formula and data in the question, the frequency of a sound source that produces the same wavelength in 20∘c air is "<u>115.87Hz</u>."
<h3>What is the frequency of a sound source?</h3>
The <u>frequency of a sound source</u> is the quantity of waves that move through a point per unit of time.
Typically, a sound wave arises from a source vibrating at a frequency f, propagates at v, and has a wavelength λ.
Therefore, in this case, we have
Velocity (v) of sound in air = 343 m/s
Wavelength (λ) = 2.96 m
Frequency (f) =?
f = v ÷ λ
f = 3.43m/s ÷ 2.96m
=> 115.87Hz
Hence, in this case, it is concluded that the correct answer is 115.87Hz.
Learn more about Frequency of Sound Source here: brainly.com/question/1418576
Dressing in layers means to wear the appropriate clothing for the season such as fall and winter. For example many wear several pieces of clothing on top of one another When the weather is cold you should dress in layers.
Answer:
because this"code " is stored in DNA and its traits are partially from your mother and father
The third area of focus that Accenture has is digital identity.
<h3>What is Accenture?</h3>
This can be described to be a leading technological service. The organization is one that offers professional services in digital and cloud operations.
The areas of focus that they have are
- supply chain
- financial services
Read more on Accenture here:brainly.com/question/25682883
