Answer:
B
Step-by-step explanation:
Given a sinusoidal function in the form f(x) = A Sin (Bx + C), we can say that:
A is the amplitude (if A is negative, the Amplitude is still the positive)
Period is
To get phase shift, we set Bx + C = 0 and solve for x.
Now, the function given is f(t) = -5 Sin (7t -1)
Hence, amplitude is 5
period is
and, phase shift is:
7t - 1 = 0
7t = 1
t = 1/7
Answer choice B is right.
The other number is 5 less than 3 times the other so the other number will be
3x-5
We are given that they add up to 31, so we can write
x+(3x-5) = 31
4x - 5 =31
Mean: 84.1
You add all the numbers together and divide by the amount of numbers
$478 by using the provided formula ...
Explanation : income = $523 , expense = $ 45 , profit =523-45= 478