approximately 2/3 of all students are not wearing braces because 165 (the difference of 250-85) /250 is 0.66
I remember the question when I was in middle school,but I don’t remember the exact answer. I wish I could help..but an image of the problem will help better.
Answer: On a coordinate plane, a curve crosses the y-axis at (0, 0). It has a maximum of 1 and a minimum of negative 1. it goes through 2 cycles at 8 pi.
Step-by-step explanation:
The function is y = sin(0.5*x)
We know that sin(0) = 0, so this graph must pass trough the point (0,0)
We know that the maximum of the sin(x) is 1, when x = pi/2. and the minimum is -1 when x = (3/2)*pi
but in our case the function is valuated in 0.5*x
then the maximum is when:
0.5*x = pi/2
x = pi/(2*0.5) = pi
and the minimum is when
0.5*x = (3/2)*pi
x = 3*pi
Now, knowing that sin(2*pi) = 0
The other 0 of the sin is when we have 0.5*x = 2*pi
x = 2*pi/0.5 = 4*pi
this means that in 4*pi we have one cycle, then in 8*pi we have tow cycles.
Then the correct option is:
"On a coordinate plane, a curve crosses the y-axis at (0, 0). It has a maximum of 1 and a minimum of negative 1. it goes through 2 cycles at 8 pi."
First off, get the equation to be x-3y=6. Then plug in numbers! If x=6, then y=0. In addition, if x=0, y=-2. Draw a line. After that, you can plug in some numbers after drawing the line to see if you should shade on top of the line or on the bottom
Answer:
The percentage decrease in TV price after five years is 6.89
Step-by-step explanation:
Given as :
The cost of TV five years ago = $ 2400
The present cost of TV = $ 1680
Let The decrease percentage in five years = x
So, The cost of TV after T year = Present cost × 
Or, $ 1680 = $ 2400 × 
Or, 0.7 =
Or, 
= 1 - 
Or, 0.9311 = 1 -
Or, = 1 - 0.9311
∴, = 0.0689
I.e x = 0.0689 × 100 = 6.89
Hence The percentage decrease in TV price after five years is 6.89 Answer
