Cassius is an exchange student in australia for one semester. he purchased some gifts first family for au$491. if the exchange rate that day is usd to aud equals 0.94 how much is he paying in american dollars? (show work)

a= $522.34
b= $491.94
c= $191.45

answer: the common difference is -0.10

the diameter is 16 cm. are you a teacher?

step-by-step explanation:

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+

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