What is the equation of the quadratic graph with a focus of (4, 0) and a directrix of y = 10? (1 point) f(x) = − one twentieth (x − 4)2 + 5 f(x) = − one twentieth (x + 4)2 + 5 f(x) = one twentieth (x − 4)2 + 5 f(x) = one twentieth (x + 4)2 + 5'

c.

step-by-step explanation:

a 270° rotation about point p says on e d g e n u it y (had to space it out because it says it's a misspelling so i couldn't submit it

geometry: triangles

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lessons

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call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584

i use my brain for prombles like this maybe you could try it

step-by-step explanation: