Write an equation for the nth term of the arithmetic sequence. Then find a30. −9,−7,−5,−3,...

srry idk

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+

25.45584

answer:

c) the x-coordinate of the center of the circle increases by 3

6-3=3

3*3=9

9+12=21

21/3=7

7*8=56

56 is your answer