Answer:
this is an x y coordinate plane, start with x and then move to y.
Answer:
Fs = 15 Hz > 12.7322 Hz
Hence, Nyquist theorem is NOT violated
Step-by-step explanation:
Given that;
a signal given by 15cos(20t) + 20sin(40t)
sampled at a rate of 15 Hz
Is the Nyquist theorem violated?
so;
from 15cos(20t) + 20sin(40t)
Freq F1 = 20/2π Hz
F1 = 3.1830 Hz
and
Freq F2 = 40/2π
F2 = 6.3661 Hz
Now, Nyquist's rate FN ≥ 2 × F_max
FN ≥ 2 × 6.3661
FN ≥ 12.7322 Hz
Now our given signal was sampled at a rate of 15 Hz
so, Fs = 15 Hz > 12.7322 Hz
Hence, Nyquist theorem is NOT violated
Answer:
<u>The scale factor is 1.25 and this represents an enlargement.</u>
Step-by-step explanation:
As shown at the figure
The side length of the first hexagon = 5
The side length of the second hexagon = 6.25
So, the scale factor = 6.25/5 = 1.25
and the second hexagon is larger than the first hexagon.
So,
<u>The scale factor is 1.25 and this represents an enlargement.</u>
1 = 25
I only know that problem that is it.
Answer:(5-7)²
Step-by-step explanation: as h(x)=x-7 and g(x)=x²
so, goh(x)=g(h(x))
=g(x-7)
=(x-7)²
hence, goh(5)=(5-7)²
