Total # Posts: 1,115
i need to show that the given equation is an identity. using composite argument properties. (cosAcosB-sinAsinb)^2 + (sinAcosB+cosAsinB)^2 = 1 Composite argument properties: cos(A + B) = cosAcosB - sinAsinB sin(A + B) = sinAcosB + cosAsinB Substituting: [cos(A + B)]^2 + [sin(A...
November 30, 2006
The table below shows annual demand (in 1,000,000 units per year) for Widgets. Use this information to calculate a constant growth forecasting model. Use your growth model to forecast demand for the years 1995 and 2000. Year Demand 1990 1.1 1991 1.5 1992 1.5 1993 1.8 All help ...
November 29, 2006
1. The utility function is given by: U=x+y and the budget line is x+2y=100. Then the price of good x goes up to 4. Find the Hicksian substitution effect, income effect, and total change in demand for good x from the change --- Ok i read the theory but i cant solve the problem ...
November 28, 2006
how do I tell the main difference between simm and dimm in electronic and physical? Also I don't know the question of "explain an upgrade to a Compaq R4000 computer to the maximum amount of memory. It currently contains two 512M modules."
November 13, 2006
math - probability
Imagine a LONG bike with a total of 4 wheels - 2 in the front and 2 in the back. For the bike to work at all, at least 1 front wheel and 1 back wheel must be operational. All 4 tires are the same and each, individually, has probability 'p' of failing. What is the ...
November 3, 2006
Spanish - Need paper proofread asap!
Hello everyone. I'm new to this board, found it on google when trying to find someplace to have someone look over my paper. I'm in my last year of spanish at high school, but I haven't done much writing in Spanish over the past few years (and I'm not that great...
October 31, 2006
I have to make a 3-d model of a hurricane. Does anyone have any suggestions for how I can do this? The materials to use, etc? an easy thing to use is cotton balls, pained dark. To get a good picture, use google images, or some other image gallery. the never ending series of ...
October 30, 2006
Calculus - Tangent Line
Hi, im having problems with the following problem. The main issue is actually starting the problem. Find the two points on the curve y = x^4 - 2x^2 - x that have a common tangent line. First, find the derivative of y(x) so that you know the slope of the tangent line at any ...
October 25, 2006
someone explain to me!
the third term of a geometric sequence is t3= -75 and the sixth term is t6=9375. determine the first term and the common ratio. how do I do this question I am tying really hard but I still don't comprehend this question! We have t3 = -75 and t6 = 9375. A geometric sequence...
October 18, 2006
Consider a solution containing 37.0 (+/- 5)% (wt/wt) HCL in water. The density of the solution is 1.18 (+/- 0.01) g/mL. To deliver 0.0500 (+/- 3%)mol of HCL requires 4.18 (+/- x) mL of solution. Find x. My teacher said x= .4. How do you solve for uncertainty? http://www.rit....
September 16, 2006
Intro to Physical Science
Define physical science Andrew: I went to www.dictionary.com and typed in physical science. The following is what it returned.I hope this helps. physical science 1. any of the natural sciences dealing with inanimate matter or with energy, as physics, chemistry, and ...
September 9, 2006
which economic type(market,traditional, or command economy) is the most efficient and which is the most equitable? Please explain why. These sites briefly explain these economic types. http://www.missouri.edu/~cee/Grades/ceehs36.html http://regentsprep.org/Regents/global/...
July 11, 2006
what is the age of a rock whose Argon 40 / Potassium 40 ratio is 1.55? The half life of Potassium 40 is 1.28 x 10^9 years I am confussed on this question theres no examples in my book but i have to know it can someone explain to me how to get to the answer? You don't say ...
June 15, 2006