Monday
December 9, 2013

Posts by Amie

Total # Posts: 90

Calculus
I need to find the second derivative of y=x(x-1)^1/2. I found the first derivative is 2x-1/2(x-1)^1/2, if someone could check, but I am miserably stuck on the second derivative.

chemistry
We performed an experiment on UV-Vis Spectrometry, by testing the absorbance of KMnO4 and KCr2O7 solutions at different concentrations. We prepared the dichromate solutions with dilute sulfuric acid. Why didn't we use water, what is the purpose of sulfuric acid?

Analytical Chemistry
Hi. We performed an experiment on UV-Vis Spectrometry, by testing the absorbance of KMnO4 and KCr2O7 solutions at different concentrations. We prepared the dichromate solutions with dilute sulfuric acid. Why didn't we use water, what is the purpose of sulfuric acid?

math
p=2.(w+l) p=40 l=2+w 40=2(w+(2=w)divide by 2 20=2w=2 subtract by 2 18=2w divide by 2 l=2+w substitude w for 9 l=11 answer =11

vocabulary

vocabulary
the latin base CORD- means: a)hand b)eye c)heart d)head thank you so much for helping.

vocabulary
which word is not an example of blending? a)housewife b)brunch c)telethon d)electrocute

calculus
Write an equation of the line tangent to y=(9-x^2)^2/3 at x=1

Maths
how to do shell to bells

geometry
In rectangle ABCD line EF joins the midpoint of line AB and BC. Line BE equals 5, line BF equals 12, find line EF, line AC and perimeter of the rectangle.

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