2. sara has 85% so far in math. she wants to increase her grade. so far there have been 1,000 points possible
in her class. the expression below represents the percent she'll have if she earns 100% on her final exam,
which is worth x points:
100(x + 850)
x + 1000
match each portion of the expression to its meaning:
a. final total number of sara's points:
11000 100
b. current percent:
ii. x + 850
c. final ratio of points earned to points possible:
iii.
x+850
-
x+1000

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

step-by-step explanation:

; fx

the answer is  

a.

4,624π mm2

step-by-step explanation: