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Calculus

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4. At time t, t>0, the volume of a sphere is increasing at a rate proportional to the reciprocal of its radius. At t = 0, the radius of the sphere is 1 and at t = 15 the radius is 2.
a. Find the radius of the sphere as a function of t.
b. At what time t will the volume of the sphere be 17 times its volume at t = 0?

  • Calculus -

    hj

  • Calculus -

    its your moma

  • Calculus -

    recall that the voulme of a sphare of radius r is v(r)=(4pir^3)/3. find l, ther linearisation of v(r) at r=50. A sphare of radius 50 centimeters is covered with a layer of point of thickness 0.31 millimeters. use the linearisation of v at r=50 to estimate the volume of point that's used.

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