Answer: See each part below.
1) A, B, and C are the coefficients in order when it equals 0. Move over the 4 and you have 5, 9, -4 or Choice B.
3) If you graph the equation, it will be above the x-axis. Therefore, it has no roots. Choice D
4) Choice A is correct. Use the coefficients: A = 4, B = 3, C = -10. Simply plug those into the quadratic equation and you will get -2 and 1.25.
Complete Question
A sensor output was acquired for 32 seconds at a rate of 200 Hz and spectral analysis was performed using FFT. If the data set was split into 5 segments (each 6.4 seconds long), what is the resulting:
a)F minimum
b) F maximum
c) Frequency resolution
Answer:
a) ![Fmax=100Hz](https://tex.z-dn.net/?f=Fmax%3D100Hz)
b) ![Fmin=0Hz](https://tex.z-dn.net/?f=Fmin%3D0Hz)
c) ![F_r=0.0313](https://tex.z-dn.net/?f=F_r%3D0.0313)
Step-by-step explanation:
From the question we are told that:
Time ![t=32sec](https://tex.z-dn.net/?f=t%3D32sec)
Frequency![F=200Hz](https://tex.z-dn.net/?f=F%3D200Hz)
Segments ![\mu=5](https://tex.z-dn.net/?f=%5Cmu%3D5)
Generally the equation for Frequency Range is mathematically given by
![Fmax=\frac{F}{2}](https://tex.z-dn.net/?f=Fmax%3D%5Cfrac%7BF%7D%7B2%7D)
![Fmax=100Hz](https://tex.z-dn.net/?f=Fmax%3D100Hz)
Therefore
a) ![Fmax=100Hz](https://tex.z-dn.net/?f=Fmax%3D100Hz)
b) ![Fmin=0Hz](https://tex.z-dn.net/?f=Fmin%3D0Hz)
c)
Generally the equation for Frequency Resolution is mathematically given by
![F_r=\frac{F}{N}](https://tex.z-dn.net/?f=F_r%3D%5Cfrac%7BF%7D%7BN%7D)
Where
N=The Total dat points
N=Sampling Frequency *Time
![N=200*32](https://tex.z-dn.net/?f=N%3D200%2A32)
![N=6400](https://tex.z-dn.net/?f=N%3D6400)
Therefore
![F_r=\frac{200}{6400}](https://tex.z-dn.net/?f=F_r%3D%5Cfrac%7B200%7D%7B6400%7D)
![F_r=0.0313](https://tex.z-dn.net/?f=F_r%3D0.0313)
12j + 12 + 3j or 15j + 12. This is because if you use Distributive Property to distribute the 3, then you multiply 3 by all the number inside the parentheses. I have two expressions because once you get get the answer after you use the property, then you can combine like terms, such as 12j and 3j which is 15j. Hope this helps!
Answer:
=66.501505not9x21−1310.355601no2pt10x12−177.337346not9x11
Step-by-step explanation:
3345 because it’s squared