Find the shaded area
2 answers:
You might be interested in
Answer:
a) n<1 and n>5
b) 0 < n < -4
c) n > 2 and n < -2
Step-by-step explanation:
The signal is given by x[n] = 0 for n < -1 and n > 3
The problem asks us to determine the values of n for which it's guaranteed to be zero.
a) x[n-2]
We know that n -2 must be less than -1 or greater than 3.
Therefore we're going to write down our inequalities and solve for n
Therefore for n<1 and n>5 x [n-2] will be zero
b) x [n+ 3]
Similarly, n + 3 must be less than -1 or greater than 3
Therefore for n< -4 and n>0, in other words, for 0 < n < -4 x[n-2] will be zero
c)x [-n + 1]
Similarly, -n+1 must be less than -1 or greater than 3
Therefore, for n > 2 and n < -2 x[-n+1] will be zero
Answer:
225cc
Step-by-step explanation:
the solution is attached to the picture.
Answer:
387.625
Step-by-step explanation:
I'm not completely sure what that last number is supposed to be but if it is , then the answer above is correct.
First, you create common denominators:
Then you can get rid of the denominator by multiplying both sides by 10:
Then add one to both sides to isolate x:
Lastly, divide by 8: