Recent content by Sarangalex

Oh, I see. Thank you very much for your help.

I'm sorry; that is what I was meaning to type. Well, the parametric graph only takes up the first quadrant; however, the Cartesian graph takes up all four. Cartesian graph...

I graphed the Cartesian equation(s) I got, and the graphs didn't exactly match up.

Homework Statement a) Eleminate the parameter to find a Cartesian equation of the curve. b) Sketch the curve and indicate with an arrow the direction in which the curve is traced as the parameter increases. Homework Equations x = 2cosh(t) y = 5sinh(t) cosh^2(x) - sinh^2(x) = 1...

Oh, I'm sorry. I see they are the same now, I just don't understand how.

But x and 30-x give you totally different answers...

I don't understand why it would just be x for the distance rather than 30-x. Could someone explain this to me?

Homework Statement A well is dug in the shape of a rectangular prism. It is 30ft deep and has a base with area of 40ft^2. Assuming that the soil weighs 150 lbs/ft^3, calculate the work W required to raise the soil to ground level. Homework Equations W = ∫dW dW =...

Homework Statement A great conical mound of height h is built by the slaves of an oriental moarch, to commemorate a victory over the barbarians. If the slaves simply heap up uniform material found at ground level, and if the total weight of the finished mound is M, show that the work they...