Answer:
45,135,315,225
Step-by-step explanation:
2cos^2x = 1
Divide each side by 2
cos^2x = 1/2
Take the square root of each side
sqrt( cos^2 x) = ±sqrt (1/2)
cos x =±sqrt (1/2)
Make into two separate equations
cos x =sqrt (1/2) cos x = - sqrt(1/2)
Take the inverse cos of each side
cos ^-1 cos (x) = cos ^-1 (sqrt (1/2)) cos ^-1 cos (x) = cos ^-1 (-sqrt (1/2))
x = cos ^-1 (sqrt (1/2)) x = cos ^-1 (-sqrt (1/2))
x = 45 +360 n x = 135+ 360n
x = 315+360 n x =225+360n
Between 0 and 360
45,135,315,225
Answer:
The value of 2008 is 112% of the Value of 2007.
But we need 100% of the year of 2007.
So 350000/112=3125=>1%
3125*100=312500=>100%
The answer is $312500
F(x)=2x-4
4 units DOWN would mean that the k-value is -4, which is put at the very end of the equation. hope this helped!
Answer:
a difference of squares
Step-by-step explanation:
Let's write down the expression:
we can see that this expression is one of the form 
which is the general expression of a difference of squares.
To be more specific and to see why we say this, let's make 
and 
Now, if we substitute this in the general formula, we get:
Thus, this expression is a difference of squares.
