Saturday
December 7, 2013

# Posts by greg

Total # Posts: 387

Calculus
Sub 0 and -4 into f(x). or f'(x)?

Calculus
Would the derivative be e^-x (x^4-4x^3)?

Calculus
Find the critical points of f(x)=x^4e^-x. You would use the product rule. Then what?

Calculus
The side of a square box is increasing at a rate of 4mm/s and its height is increasing at a rate of 2mm/s. How fast is the volume increasing when the side is 40mm and the height is 100mm. Can someone just tell me what formula to use?

Calculus
y=sqrt(x)^1/x. Find dy/dx That is to the power of 1/x So to start this do I need to take Ln on both sides and then use a logarithm property? Ln(y)=lnx^1/2x?

chem
The complete combustion of 1.283g of cinnamaldeyde (C9H8O, one of the compounds in cinnamon) in a bomb calorimeter (Ccalorimeter=3.841 kJ/C) produced an increase in temperature of 130.32 C. Calculate the molar enthalpy of combustion of cinnamaldehydy (delta H comb) (in kilojou...

chemistry
how would you separate a mixture of NaCl, Fe pellets and water

chemistry
how would you separate a mixture of NaCl, Fe pellets and water

Chemistry
Complete the electron dot structure below to show how beryllium flouride (BeF2) is formed. F F Be+ -> Be F F

Chemistry
What is the coordination number of the ions in a face-centered cubic crystal? In a simple cubic crystal?

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