Thursday
December 5, 2013

Posts by paul

Total # Posts: 704

Chemisty
74.0 mL of a 1.80 M solution is diluted to a volume of 248 mL. A 124-mL portion of that solution is diluted using 135 mL of water. What is the final concentration?

math
solve the polynomial inequality and graph the solution set on a real number line. express the solution set in interval notation x^3+x^2+64x+64>0 show work please

math
For the given functions f & g find the following and state the domain of each result. f(x)square root x;g(x)=5x-1 a.(f*g)(x)= What is the domain of f*g? b. (f/g)(x)= What is the domain of f/g?

calculus
solve the following exponential equation. 5^x=4 a. what is the exact answer? **I think it is In4/In5 b. what is the answer approximated to 3 decimal places.

calculus
Here is the rest of the answer: then dropping down negative again then it comes back up again and goes positive and crosses the x-axis at x=3 and from then on is positive x=3 (-00,3)u(0,6) **Now she says note that the last term does not contain an x. What type of method did I ...

I have two questions that I don't understand and need help with. 1. information is given about a polynomial f(x) whose coefficients are real numbers. Find the remaining zerosof f. degree 4, zeros i;9+i 2. form a polynomial f(x) with real coefficients having the given degre...

Solve the inequality. x^3+9x^2-108 less than or equal to 0. Then write in interval noation. Please can you show me step by step on how you got the answer. I have tries and I am very confused.

U S Civics.
The primary responsibility is to the constituents. The difficulty is that this does not seem to be the case as they struggle heading to the fiscal cliff. Lobbyists are making their jobs difficult, perhaps!

Chemistry
Don't give an answer. Just explain step by step by inserting the data above into the formula. So we can understand how to answer.

Chemistry
A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a concentration of 0.31 kg m-3. Under these conditions the total surface area of the balloon is 0.11 m2. The diffusion coefficient of He in latex at room temperature is 4.9 x 10-9 m2s-1. Calculate the rate of h...

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