March 28, 2017

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Posts by Yu

Total # Posts: 25

S.S ( Please help me Ms. Sue!! )
Melody, what were the answers?
March 15, 2017

2/5 of the boys don't know how to swim, so 2/5 * 1/3= 2/15 of the total people are boys who cannot swim. Likewise for girls, 3/5 * 2/3= 6/15 of the total people are girls who cannot swim. Thus, 1- 2/15 - 6/15= 7/15 of the total people are swimmers. Thus, there are 490 ...
July 9, 2014

Parametrically represent a Mobius strip. Since I am very unfamiliar with this topic, Math jargon should appear as little as possible and please provide step by step working.
July 9, 2014

Math logarithms
The graph, y=lg x is rotated 90 degrees anticlockwise around the origin. What is the equation of the new graph? Please provide proof.
April 30, 2014

Which method(High Performance Liquid Chromatography or Gas Liquid Chromatography) would be suitable for the separation of the following mixtures? 1) Mixture of paracetamol, codeine and caffeine. 2) Mixture of alpha-pinene, beta-pinene, eucalyptol, alpha-terpineol. Please ...
January 12, 2014

How is the high performance liquid chromatography column designed to ensure greater efficiency?
January 11, 2014

How can reaction intermediates in an organic synthesis be separated and recovered using thin layer chromatography?
January 11, 2014

11/2 and 9/2
November 26, 2013

Thanks simonsay, in q1_2_1: 300 is wrong for me, is there maybe a -300?
May 23, 2013

Trustee thanks the first two answers right but third one is wrong, can you check please?
May 23, 2013

Can someone explain with values for I = dQ/dt please?
May 22, 2013

BoobleGum, what is the value for U please?
May 22, 2013

In a manufacturing process, each item leaving an assembly line will be examined by two inspectors: A and B individually. Based on past experiences, Inspector A detects 60% of the defective items. If the defective items are not detected by Inspector A, 90% of them will be ...
April 9, 2013

Quantum Physics
Help please!
March 24, 2013

Quantum Physics
Help Please!
March 24, 2013

statistics help please!
maximize p = 2x+3y subject to 1.25x+y<=100 x+y>=30 x<=50 y<=75 x>=0 y>=0) graphic method for linear programing
January 20, 2013

Computer Science
I need some help about Turing Machines, and prove by reductions. Here are the 2 questions: 1. Sketch the construction of a Turing Machine that decides the language L = a^i where i is not prime. 2. Show that the language 2Strings is not recursive by reducing any one of the two ...
December 8, 2012

November 20, 2012

November 5, 2012

November 24, 2011

Tower 1 is 90 ft high and tower 2 is 40 ft high. The towers are 200 ft apart. A guy wire is to run from point A to the top of each tower. [See a picture of this situation on page 274 of the textbook.] How many feet from tower 1 should point A be so that the total length of guy...
November 9, 2010

Use Chain Rule 1=cos(xy^2)(y^2+2xyy') 1=cos(xy^2)y^2+(2xy)cos(xy^2)(y') [1-cos(xy^2)y^2]/[(2xy)cos(xy^2)]=y'
November 9, 2010

can anyone give me a thesis statement on conscience in hamlet. pls
April 21, 2010

Economics(12 Multiple Choice)
November 26, 2009

An effort to bring civilization with them... I just took the test. This answer is 100% correct, I promise!
May 19, 2009

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