You’re a utility company charges 13 cents per kilowatt hour of electricity. complete parts a& b.
a. the daily cost of keeping a 100 w lightbulb for 13 hours each day is?
b. the yearly savings of replacing 100 w lightbulb with a 20 w lightbulb is?

there is no question content here, but you for the free points! : d

geometry: triangles

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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

10.4 inches

step-by-step explanation:

2x2x2.6