Answer: 7:4
Step-by-step explanation:
40 boys and girls 3:2 = 24 boys + 16 girls
4 boys are added 28 boys + 16 girls /4 = 7:4
Answer:
y = 0
Step-by-step explanation:
The given sinusoidal equation is
The general form of the sin function is presented as follows;
y = A·sin(B·(x - C)) + D
Where;
A = The amplitude
The period, T = 2·π/B
The frequency, f = B/2·π
C = The horizontal shift
D = The vertical shift
By comparison with the given sine function, we have;
The amplitude, A = 2
The frequency, f = B/2·π = π/2/(2·π) = 1/4
The frequency, f = 1/4 Hz
C = The horizontal shift = 3/(π/2) = 6/π
The vertical shift, D = 0
Given that the mid line of the parent function, sin(x), is the line y = 0, and that the vertical shift is 0, the midline of the function, , is therefore, the line;
y = 0.
Hey, I really want to help you but I am going to need a clearer idea of the problem. You need more signs in there (addition, subtraction, multiplication, and/or division)
Change 20% to a decimal
20% = 0.2
now multiply 20 by 0.2
20x0.2 = 4