7. Joe walks up to a small aquarium tank that can hold about 20 gallons. When it is active, a drain empties water from the tank at a constant rate. When Joe first sees the tank, it contains 14 gallons of water 5 minutes later, the tank contains 10 gallons of water. At what rate is the amount of water in the tank changing?

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Someone answer asap for ! michele pushes a box d meters across a floor. she uses a force f, in newtons, to push the box. she pushes the box for t seconds. the formula p = fd/t calculates the power, p, in watts, that it takes for michele to complete the task. solve the formula for d.

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %