Find how fast the area of a right triangle changes if its shorter and longer legs change at rates 2 units per second and 3 units per second, respectively, at the instant the shorter and longer legs are 4 units and 5 units, respectively. O 11.5 units per second O 11 square units per second O 10 units per second O 10.5 units per second

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A: y=5x x=5 and ∆x=0.3 ∆y=f(x+∆x)-f(x) ∆y=f(5+0.3)-f(5) ∆y=f(5.3)-f(5) ∆y=55.3-55 ∆y=0.3305245

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