Tuesday
May 21, 2013

# Posts by ann

Total # Posts: 994

Math 11
perform the indicated operation and give the answer in simplified form. ((x-1/x+1)-(x+1)/(x-1))/ ((x-1/x+1)-(x+1)/(x-1)) =0 ?

chemistry
what is the molecular geometry of niacin? C6H5NO2

algebra
Please check for me and tell me how to correct, thank you. Mary wants to put a walk( 10 ft wide)all the way around her house. house Length=60 ft width 45 ft A. write a polynomial that represents the total area of the house and walk total area of walk and house = (2x+60)(2x+45 ...

Use logarithms to solve the given equation. (Round the answer to four decimal places.) 6(1.02^3x + 1) = 11 How do i find the answer after 1.03^3x +1 = (11/6) Do i put a log on 1.03 or do I do something else Thank you.

Chemistry
At 25°C, K = 0.090 for the following reaction. H2O(g) + Cl2O(g) equilibrium reaction arrow 2 HOCl(g) Calculate the concentrations of all species at equilibrium for the following case. 1.3 mol pure HOCl is placed in a 1.6 L flask [HOCl]________ [Cl2O]________ [H2O]________ ...

Pre-Cal
I meant to say 3000e^ 0.33(15) and got \$62593.57

Pre-Cal
A website is offering a savings account that pays 33% compounded continuously. How much interest would a deposit of \$3,000 earn over 15 years? (Round your answer to the nearest cent.) I used f(t)=Pe^rt and got 1000e^-0.045t I don't know what I did wrong. Thank you.

For the given function, compute the missing values in the following table. f(x) = 8x i got the negatives wrong, but I know how to solve for it. Is there a reason it is wrong? -3: -1/512 -2: -1/64 -1: -1/8 (^These were wrong, but I don't know how to solve it) 0: 1 1: 8 2: 6...

math
Joes electric made 19 customer calls last week and 24 calls this week, How many calls must be made next week in order to maintain an average of at least 21 calls per week for the three week period?

Math
The equation V=1/3 Bh gives the volume V of a pyramid, where B is the area of the base and h is the height. Solve this equation for B. Please help me and show your work thanks

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