# Posts by jau

Total # Posts: 5

Calculus
A tank contains 100 grams of a substance dissolved in a large amount of water. The tank is filtered in such a way that water drains from the tank, leaving the substance behind in the tank. Consider the volume of the dissolved substance to be negligible. At what rate is the ...

Calculus
A boat is pulled in to a dock by a rope with one end attached to the front of the boat and the other end passing through a ring attached to the dock at a point 6 ft higher than the front of the boat. The rope is being pulled through the ring at the rate of 0.2 ft/sec. How fast...

Calculus
A tank contains 100 grams of a substance dissolved in a large amount of water. The tank is filtered in such a way that water drains from the tank, leaving the substance behind in the tank. Consider the volume of the dissolved substance to be negligible. At what rate is the ...

Algebra
Let A(t) = 3- 2t^2 + 4^t. Find A(2) - A(1).

statistics
For a normal distribution with µ = 200 and ó = 50, what X values form the boundaries for the middle 60% of the distribution?

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