Find the standard form of the parabola given the focus (2, 1) and directrix of X = -2
a) (y-1)^2=8x
b) (x-1)^2=-8y
c) (y-1)^2=-8x
d) (x-1)^2=8y

How do the definitions, properties, and postulates you've learned about line segments, parallel lines, and angles to define the shapes of polygons

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)