July 23, 2014

Posts by keneth

Total # Posts: 2

If a point moves on the hyperbola x^2-4y^2=36 in such a way that x-coordinate increases at constant rate of 20 units per second. How fast is the y coordinated changing at point (10,4)? please help!!! Differentiating implicitly with respect to t, 2 x dx/dt - 4 y dy/dt = 0 dy/dt...

A light is at the top of a pole 80ft high. A ball is dropped at the same height from a point 20ft from the light. If the ball falls according to 2=16t^2, how fast is the shadow of the ball moving along the ground 1 second later? please help!!! Let x be the distance of the shad...

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