The formula below is the general form of which of the following formulas? X= -b+-(√b^2 - 4ac)
/2a
A. Distance formula
B. Discriminant formula
C. Quadratic formula
D. Slope formula

The formula below is the general form of which of the following formulas?

X= -b+-(√b^2 - 4ac)

/2a

C. Quadratic function

answer: 1 + 1 = 11

step-by-step explanation:

geometry: triangles

solvers

lessons

answers archive

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+

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