Expanded form with parentheses is basically an easier way to add. For instance, lets use 1,492. The expanded form would be (1,000)+(400)+(90)+(2)=1,492.
Because the focus is (-2,-2) and the directrix is y = -4, the vertex is (-2,-3).
Consider an arbitrary point (x,y) on the parabola.
The square of the distance between the focus and P is
(y+2)² + (x+2)²
The square of the distance from the point to the directrix is
(y+4)²
Therefore
(y+4)² = (y+2)² + (x+2)²
y² + 8y + 16 = y² + 4y + 4 + (x+2)²
4y = (x+2)² - 12
y = (1/4)(x+2)² - 3
Answer:
there are 6 combinations but if we change the order we can get more than 6, so the last option is out
the option 2 and 3 cant be because has two reds socks and just exist 1
s, the right option is the first
0.362=
0.3+0.06+0.002
and
362/1000
and
0.362
<span>When converting 3.68 the denominator will be 100.</span>