For the first questions it is x = -2 then the second one is x = 12 the third is x = 15
![\frac{20}{2(5+5)}](https://tex.z-dn.net/?f=%5Cfrac%7B20%7D%7B2%285%2B5%29%7D)
- Following the order of operations, we do parenthesis first.
![\frac{20}{2(10)}](https://tex.z-dn.net/?f=%5Cfrac%7B20%7D%7B2%2810%29%7D)
- Multiply out the value against the parenthesis.
![\frac{20}{20} = 1](https://tex.z-dn.net/?f=%5Cfrac%7B20%7D%7B20%7D%20%3D%201)
- This leaves us with 20 over 20. 20 goes into 20 only 1 time, so our final answer is 1.
The pitch depends on the value of frequency. The frequency can be calculated using this formula:
Frequency = wave speed / wavelength
where wave speed = 343.00 m/s
wavelength = 0.77955 m
Frequency = 343.00 m/s / 0.77955 m
= 434.00 s^-1
Therefore the pitch is low since the frequency is also low.
Answer:
10 percent
Step-by-step explanation:
i took a test