1which ordered pair makes the equation true?
2x-5y=-10
a(5,4)
b(-10,4)
c(2,5)
d(20,4)

2what is the simplified form of the expression
15y-3(4y+10)
a3y-30
b3y+10
c27y-30
d27y+10

3which ordered pair is a solution to the question
4y=7x-5
a(-5,0)
b(-3,4)
c(1,3)
d(2,-2)

4which ordered pair is a solution to the question
y=5^4x-3
a(5,-1)
b(-5,-7)
c(-10,5)
d(10,-11)

5which is the simplifies form of the expression
12n-1/2(6n-4)
a9n-2
b9n+2
c15n-2
d15n-8

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+

25.45584

step-by-step explanation: