Mathematics - 15 June 2006

Assume the stream is D miles wide, the paddler paddles over water at p miles/hour, the current is a stready w miles/hour. They aim at the target point straight across on the opposite shore and stay aimed there throughout the crossing. However, the current sweeps them downstream, so they don't take a staight course across. They stay continuously aimed at the original target point, but at an increasing angle. Thus the course is an arc, not a straight line. How long does it take? How far do they paddle over water? Over ground? (Analytical answers preferred over numerical simulations.)

2006-06-15 06:05:31 · 4 answers · asked by DavidL 2

2006-06-15 05:43:24 · 9 answers · asked by cappaul22 1

I have to fix an essay I wrote and I'm having difficulty finding the information. Here are the specific questions I need to complete:
-Define what a tangent line is
-Explain why the derivative is the instantaneous rate of change and the secant is the average rate of change.
-Explain why velocity is the first derivative of displacement and why acceration is the second.
-Why does the derivative being zero yield a minimum or maximum?
-Finally, what is calculated by the definite integra if the function is negative for every value between points a and b?

I am a true math-phobe so this is not fun for me! Any help would be greatly appreciated! I have visited tons of websites, but they all have this assumption that the viewer has some basic understanding of calc- I have NONE!

Thanks!
CC

2006-06-15 05:23:38 · 7 answers · asked by CC 2

2006-06-15 04:56:26 · 5 answers · asked by jen c 1

I just can't seem to get this one. The first one to get it gets the best answer.

2006-06-15 04:17:43 · 11 answers · asked by Anonymous

2006-06-15 03:39:52 · 13 answers · asked by SWEET CYN 2

other than the incident of Leelawati his daughter.

2006-06-15 03:08:12 · 2 answers · asked by nikky 1

2006-06-15 02:46:05 · 5 answers · asked by Anonymous

2z+7

2006-06-15 02:20:04 · 6 answers · asked by tigger 1

With assuming that Z is a complex number(and others are hyperbolic functions):



A) |Sinh y|<= |Sin Z| <= Cosh y

B) |sinh y|<= |cos Z| <= Cosh y

C) |sin Z|^2 + |cos Z|^2 = sinh y ^2 + cosh y ^2


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Thanks

2006-06-15 02:18:23 · 3 answers · asked by Anonymous

2006-06-15 02:18:11 · 16 answers · asked by Anonymous

plz tell the accurate ans ?. it is important>...

2006-06-15 02:13:18 · 11 answers · asked by nijas 2

it is important !

2006-06-15 02:08:53 · 10 answers · asked by nijas 2

2006-06-15 02:08:45 · 2 answers · asked by Anonymous

2006-06-15 02:06:24 · 11 answers · asked by Anonymous

2006-06-15 01:55:07 · 6 answers · asked by iambored_2287 1

suppose:a+b+c=0
prove:a^3+b^3+c^3=3abc

2006-06-15 01:19:13 · 3 answers · asked by saba 1

reply at abhik_mitra2003@yahoo.com

2006-06-15 01:02:36 · 3 answers · asked by Anonymous

These are terms used in Geometry. Please answer and explain.

2006-06-15 00:20:28 · 8 answers · asked by Cheska 1