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Three girls and four boys are seated randomly on a straight bench. What is the probability that the boys sit together and the girls sit together.

To calculate the desired probability we need to calculate the number n of arrangements of the kids such that the girls sit together and the bous sit together and then calculate the total number m of arran...

JW
Answered by Jakub W. Maths tutor
11356 Views

what is the difference between a structural budget deficit and a cyclical one

A structural budget deficit arises irrespective of the business cycle. It will exist whether the economy is in the boom or recession phase of its business cycle: in short, the government is spending beyon...

SB
Answered by Shanay B. Economics tutor
12471 Views

Write a half-equation for the overall oxidation of ethanol into ethanoic acid.

 Answer:

CH3CH2OH + H2O CH3COOH + 4H+ + 4e– 

The question requests a half equation and so it is acceptable to write electrons and unpaired Hydrogen ions, so long as the charge overall is bal...

HS
Answered by Harry S. Chemistry tutor
24800 Views

How does the anticancer agent cisplatin work?

(The molcule of Cisplatin is made up of a central platinum atom covalently bonded to two ammonia (NH3) groups and two chlorine (Cl) atoms and has a square planar structure). Cisplatin works as an anticanc...

JS
Answered by James S. Chemistry tutor
6516 Views

How do I go about comparing two pieces of music in an analytical essay?

In order to structure a comparative essay at this level it is best to break the pieces down, and compare and contrast them in terms of their melody, rhythm, harmony, instrumentation, texture and structure...

LC
Answered by Luke C. Music tutor
28625 Views

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