Monday
December 9, 2013

# Posts by Krissy

Total # Posts: 57

College Algebra
Last one for today! Again would appreciate a breakdown on how to get to a resolution. It is multiple choice. 1. Simplify the expression using the quotient to a power property. (3y^6/z^7)^3 a. 27y^9/z^7 b. 3y^9/z^10 c. 27y^18/z^7 d. 27y^18/z^21 2. Use a descriptive variable and...

College Algebra
I have a few more questions that I'm not understanding. Its multiple choice however I would appreciate a breakdown on how to solve. 4.Simplify the compound rational expression. Use either method. 1+(5/y-10)/y+(25/y-10) a. 1/y-5 b. 1/y+5 c. 6/y+25 d. 1/y+1/5 5.Simplify the ...

College Algebra
I have a few more questions that I'm not understanding. Its multiple choice however I would appreciate a breakdown on how to solve. 1.Evaluate without a calculator, using the order of operations. -2^2+20-|8-20|-squareroot of 64 a. -36 b. 4 c. 28 d. -4 2.Simplify the expres...

Chemistry
Why is the DNA information coded in "threes"?

Chemistry
What are chiral carbons and why do they lead to isomers?

Chemistry
I need help naming these compounds. I CL H H | | | | CH3-CH-CH-C=C-CH3 F CH3 O | | || CH3-CH-CH-CH2-CH-C-OH | CH2-CH3 CH3-CH2-CH2 | CH3-CH2-C-C-CH-CH3 | || | Br O CH3

statistics
sample size needed with a mean of 100,standard deviation of 20 for the the population of normal adults an iq range to fall between 2 iq points with 95% confidence interval

Chemistry
The following three step mechanism has been proposed for the oxidation of iodide ion by peroxide: H2o2 + I^- ----> HOI + OH^- Slow OH^- + H^+ ----> H2O Fast HOI + H^+ + I^+ ---> I2 + H2O Fast A. What is the overall reaction described by this mechanism? B. What is the ...

Chemistry
Your Open Question Show me another » Chemistry help needed... Confused? The following reaction is first order and the rate constant is 2.35 x 10^-4 s^-1 at 20 degress C. 2 N2O5 -----> 2 N2O4 + O2 A.) What is the rate of reaction if the [N2O5]=.25 M? B. What would the...

Physics (Science)
Hi, For my physics class, we have to design our own experiments to calculate the amount of power exerted for each situation. However, I'm really unsure of how to go about finding the power for the situations. The first situation is doing a push-up, and the second is pushin...

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