Question 1 (1 point)
Johnny has his own company doing yard work. His sales are normally distributed
with a mean of $450 a day with a standard deviation of $110. What is the
probability that he will make less than $600?

A.- 8.69%

B.- 0.0869

C.- 0.9131

D.- 91.31%

the correct answer is 5 6 and 7

geometry: triangles

solvers

lessons

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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

hope this !