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If y equals x cube plus 2x and dx over dt equals 5 what is dy over dt when x equals 2?
Updated: 4/28/2022
Nghoangquang
Lvl 1
∙ 14y agoBest Answer
y=x3+ 2x, dx/dt=5, x=2, dy/dt=?
Differentiate the equation with respect to t.
dy/dt=3x2*dx/dt
Substitute in known values.
dy/dt=3(2)2 * (5)
dy/dt=60
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