The company that offers the best deal in my point of view is Cellphones usually they are old so they are going in less price. I think that is what you mean
Answer:
a. 41
b. -31
c. 25/3, no
Step-by-step explanation:
when it says find f(14) the number inside the parenthesis is x, so you just plug that number into the equation which in this case is 3x-1. for c it says find the input if the output is 24. so basically the output is f(x) or y and the input is x. so 3x-1 = 24.
Answer: D
Step-by-step explanation:
1875/250
= 7.5
total combined weight/amount of cats
= mean
Answer:
(a) true
(b) true
(c) false; {y = x, t < 1; y = 2x, t ≥ 1}
(d) false; y = 200x for .005 < |x| < 1
Step-by-step explanation:
(a) "s(t) is periodic with period T" means s(t) = s(t+nT) for any integer n. Since values of n may be of the form n = 2m for any integer m, then this also means ...
s(t) = s(t +2mt) = s(t +m(2T)) . . . for any integer m
This equation matches the form of a function periodic with period 2T.
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(b) A system being linear means the output for the sum of two inputs is the sum of the outputs from the separate inputs:
s(a) +s(b) = s(a+b) . . . . definition of linear function
Then if a=b, you have
2s(a) = s(2a)
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(c) The output from a time-shifted input will only be the time-shifted output of the unshifted input if the system is time-invariant. The problem conditions here don't require that. A system can be "linear continuous time" and still be time-varying.
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(d) A restriction on an input magnitude does not mean the same restriction applies to the output magnitude. The system may have gain, for example.
<span>The <u>correct answer</u> is:
A) Output = Constant/Input.
Explanation<span>:
Inverse proportion is also called inverse variation. In inverse variation, as one variable increases, the other decreases, but their product stays the same.
Algebraically their product would be represented by the equation
xy=k.
To isolate the output, y, we would divide both sides by x:
xy/x = k/x
y=k/x
In this equation, y is the output, x is the input, and k is called the constant of proportionality.
Based on this, the correct choice is output = constant/input.</span></span>
