Recent content by JacksonSolo

I derived it. 32000 & 3 are constants so they cancel out and you are left with 1/\sqrt{x} with is 1/x^{\frac{1}{2}} which is just x^{\frac{-1}{2}} Then you add one to the exponent and multiply it in front of x which gives you (-3/2)x^{-3/2}. Oh ok, so I rewrite the original equation in terms...

Oh I see, \frac{df}{dx} = \frac{-3x^{-3/2}}{2}? So \frac{df}{dx} * \frac{dx}{dt} = \frac{-3x^{-3/2}}{2} * 1.4?

I tried that, but isn't the derivative of F just equal to 1? I really can't understand this problem. Its on the practice test for our upcoming final and I have never even seen anything like it before. But I really would like to understand it in case something like it shows up on our final...

Homework Statement A lake is polluted by water from a plant located on its shore. Ecologist determine that when the level of pollutant is x parts per million (ppm), there will be F fish in the lake. When there are 4,000 fish in the lake, the pollution is increasing at a rate of 1.4ppm/year. At...

Ok thanks. Yes, true ;)

Im just looking for confirmation i solved the problem right.

Ok so I get the log of 30/88.6 and divide that by the log of 0.97 to get t, which equals 35.55 hours. Did I do that right?

Homework Statement The problem states that you discovered the body at 1pm Thursday in a freezer where the temperature was 10F. Temperature of the corpse at discovery was 40F. I have to find how many hours ago the victim died. Homework Equations You are given the formula T = Ta + (98.6 -...