<span>If </span><span /><span><span><span><span><span><span>x</span><span>≠</span><span><span><span>0</span></span></span></span><span /></span></span><span /></span><span>x≠0</span></span><span>, then </span><span /><span><span><span><span><span><span><span><span><span><span><span><span><span><span><span><span>x</span><span /></span><span><span>2</span><span /></span></span></span></span><span /></span><span><span><span><span>−</span><span /></span><span><span>−</span><span /></span></span><span /></span><span><span><span>√</span></span><span /></span></span></span><span /></span><span><span>x</span><span /></span><span><span /><span /></span></span></span><span>=</span></span><span /></span></span><span /></span><span>x2x=</span></span>
Answer:
Step-by-step explanation:
the directrix is y=-1
I don't know what the vertex focus is.
I think it is B but I’m not sure
Answer:
The area is 3.14
Step-by-step explanation:
Get the radius and times it by itself then multiply it by pie and you get 3.14
[
<em>see the pictures attached for a better understanding !</em>]
Horizontal cross section : we get a square in the horizontal plane, its side is the same as the cube's.
Vertical cross section : we get a square in the vertical plane, its side is the same as the cube's.
Hence, the two shapes are the same (two squares with same sides are the same)