Thursday
May 23, 2013

Posts by Tiffany


Total # Posts: 705

calculus
Find the area of the region bounded by the graph of y^3=x^3 and the chord joining the points (-1, 1) and (8,4)

calculus
Which of the following are antiderivatives of f(x)=sinxcosx? I f(x)=(sin^2* x)/2 II f(x)=(cos^2* x)/2 III f(x)=-cos(2x)/4

Spanish
Thank you

Spanish
I had to answer the questions in the negative please check 1.Hay alguien en la puerta? No, no hay nadie en la puerta. 2. Hay algo en la mesa? No, no hay nada en la mesa.

math
how do you make 87 cents with 6 coins none of which are half dollars

Chemistry
The specific heat of solid copper is 0.385 J/g*C. What thermal energy change occurs when the temperature of a 40.10g sample of copper is cooled from 42.9C to 10.0C? Be sure to give you answer the proper sign. I know this is part of the answer which (42.9-10.0)*40.10*0.385=508 ...

Chemistry
The specific heat of solid copper is 0.385 J/g*C. What thermal energy change occurs when the temperature of a 40.10g sample of copper is cooled from 42.9C to 10.0C? Be sure to give you answer the proper sign. I know this is part of the answer which (42.9-10.0)*40.10*0.385=508 ...

math
how do you format hours/day-percentage of time spent during an 8 hour work day ?

Chemistry
A compound containing only C, H, and O was extracted from the bark of the sassafras tree. The combustion of 36.3mg produced 98.6 of CO2 and 20.2mg of H2O. The molar mass of the compound was 162 g/mol. Determine its empirical and molecular formulas

Chemistry
A compound containing only C, H, and O was extracted from the bark of the sassafras tree. The combustion of 36.3mg produced 98.6 of CO2 and 20.2mg of H2O. The molar mass of the compound was 162 g/mol. Determine its empirical and molecular formulas

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