Tuesday
May 21, 2013

Posts by Christina

Total # Posts: 790

math
6. Determine the domain and range for each function given. Explain where any restrictions come from. a. f(x)= sqrt x + 5 – 4 b. f(x) = 1/2x^2 – 32 c. f(x) = 4/x^2 + 1

College Algebra
Solve the equation. If necessary, round to the nearest thousandth. 5(2x-1)=10

physics
Suppose the spring in this spring-powered rifle has a spring constant of k = 1,000 N/m. How much work can it do in accelerating the projectile, if it is compressed by x = 0.10 m?

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.?

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