Thursday
December 5, 2013

# Posts by christina

Total # Posts: 805

science
Overpopulation. Increase population=decrease of natural resources.

Chemistry
I know that I am close to the answer using this formula with plugged in information: ln p2/760= 40500/8.314(1/273-1/351.1) Just not sure what I am doing wrong. Is someone could assist me that would be greatly appreciated! thanks :)

Chemistry
The boiling point of ethanol is 78.5C and delta H vap = 40.5kJ/mol. Calculate the vapor pressure (in torr) of ethanol at 0.0C ?

algebra
Write an exponential function to model the situation. Then predict the value of the function after 5 years (to the nearest whole number). A population of 210 animals that increases at an annual rae of 19% Can you explain your answer please?

Algebra II
If F(x)=x^2-x+1 and g(x)=-3x+6, what is the product of f(-1) and g(3)? Help please.

Chidren,Families,and Society
I believe the answer is D

math
how do you find the derivative of f(x)=2x/(x^2+x+1)^1/2 HELP A.S.A.P.?

Algebra 2
(x-4)^3/2 = -6 In the end I got .69, but that's wrong. Please help. I don't really understand. My work. x-4 = -6^2/3 x=4-6^2/3 x=.6980727511

Physics
A stuntman sitting on a tree limb wishes to drop vertically onto a horse galloping under the tree. The constant speed of the horse is 10.0 m/s, and the man is initially 2.75 m above the level of the saddle. (a) What must be the horizontal distance between the saddle and limb w...

math
The final math grades for all 6th graders were A: 125, B: 200, C: 350, D: 95, and F: 25. Make a bar graph to display this data. In the box below, write a description of your bar graph.

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