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Dmitriy789 [7]
2 years ago
9

A number is subtracted from 20 and from 17. The product of the number so obtained is 180. Find the original number

Mathematics
1 answer:
matrenka [14]2 years ago
5 0

I don't really understand your question, but it think it goes like this:

x-17-20=180

gather common terms

x-37=180

move 37 to other side

x=180+37

addition

x=217

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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:

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Answer:

a) Fmax=100Hz

b) Fmin=0Hz

c) F_r=0.0313

Step-by-step explanation:

From the question we are told that:

Time t=32sec

FrequencyF=200Hz

Segments \mu=5

Generally the equation for Frequency Range is mathematically given by

Fmax=\frac{F}{2}

Fmax=100Hz

Therefore

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c)

Generally the equation for Frequency Resolution is mathematically given by

F_r=\frac{F}{N}

Where

N=The Total dat points

N=Sampling Frequency *Time

N=200*32

N=6400

Therefore

F_r=\frac{200}{6400}

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2 years ago
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Step-by-step explanation:

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