ForTankB, the tank to be 8x + 11 feet. If the area covered by the top can be represented in square feetby 360x + 495, write and simplify an expression that can be used to represent the length of the tank. Write and simplify an expression that could be used to determine the amount of rubber stripping, in feet, needed to place around the top edge of this rectangular settling tank.

The ratios are both identical.
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sin = opposite/hypotenuse, cos=adjacent/hypotenuse.
the length of the opposite side from angle x is 3, as you can see. the length of the adjacent side of y is also 3 (the same
the hypotenuse is 5.
so, sin x and cos y are both 3/5.
the sine of an angle is equal to the cosine of it's complimentary angle, and vice versa.