Adolphin went 15 feet below sea level to catch a fish. a shark went twice as deep, then swam down an additional 10 feet to catch a larger fish. which expression represents the shark’s position in relation to sea level?

1. 2(-15) + (-10)
2. 2(-15) + 10
3. 2(-15) - (-10)
4. 2(15) + (-10)

im not 100% sure but i pretty sure its 2.

Step-by-step explanation:

40% off the regular price is the correct answer.

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