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Evaluate u + xy, for u = 20, x = 9, and y = 8.

188

232

37

92

92

Step-by-step explanation:

u + xy

Let u = 20, x = 9, and y = 8.

20 + 9*8

Multiply first

20 +72

Then add

92

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

the first one

step-by-step explanation:

just id the test.