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Max
Max asked in Science & MathematicsMathematics · 2 years ago

If y=x3+5x and dx/dt=7. Find dy/dt when x=2.?

3 Answers

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  • Como
    Lv 7
    2 years ago

    -

    dy/dx = 3x² + 5 = 17

    dy/dt = 17 x 7 = 119

  • az_lender
    Lv 7
    2 years ago

    dy/dt = (dy/dx)(dx/dt)

    = 7*(3x^2 + 5) = 119.

  • alex
    Lv 7
    2 years ago

    Hint:

    dy/dt = (dy/dx)(dx/dt)

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