\left[x \right] = \left[ \frac{-1}{4}\right][x]=[4−1] = x*3 +3x*2+6) - (9x*2-5x+7
So if 20% of his pin code was 246.8, then we want to know 5 times that since 20% * 5 = 100%.
So 246.8 * 5 = 1234
So his pin was 1234.
Answer:
Dilating something by scale factor is enlarging it by a number, making it for example, 2 or 3 times bigger than it is.
Step-by-step explanation:
Answer:
steps below
Step-by-step explanation:
Are you going to solve the value of A or just a proof the equation
cos 2A = cos² A - sin² A
2cos²A-cos2A-1 = 2cos²A - (cos² A - sin² A) - 1 = cos² A + sin² A - 1
2cos²A-cos2A-1 = 1 - 1 = 0
A: 90° or 270° or 450° .....
Y=6X+9 the A is #1
all you need to do is simp the equation