Mr. gonzalez has money in three different savings accounts. one pays 2.3% interest. the second offers 2.9% interest, and the third gives 1.4% interest. what is the average interest of the accounts? a) 2.0% b) 2.2% c) 2.3% d) 2.5%

c

Step-by-step explanation:

6.5

step-by-step explanation:

you said it was in the question

~courtney

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