Tuesday
December 10, 2013

# Posts by Kathryn

Total # Posts: 139

algebra 2
16 beds * 21 square meters of space = 336 5 living * 42 square meters of space = 210 add those two up and get the total availible space of 546 Draw the graph showing the feasible region.Label the coordinates of the vertices of the feasible region.

stats
The probability of receiving a false positive on a mammogram is 7%. If the patient receives 10 mammograms in her lifetime what is the probability that none of the tests come back as a false positive?

chemistry
a scientist wants to make a solution of tribasic sodium phosphate ,Na3PO4, for an experiment. how many grams of Na3PO4 will be needed to produce 750 mL of a solution that has a concentration of Na+ ions of 1.30M

Physics
Under the influence of the electric force of attraction, the electron in a hydrogen atom orbits around the proton on a circle of radius 5.3 x 10^-11 m. What is the orbital speed? What is the orbital period?

Materials Science
A cube of aluminum contains 10^21 atoms. how long is its edge(in mm)?

Parent
Mr Mike plants cabbages in a square grid so that the number of rows and columns are equal. He increased the size of his garden eqully in rows and columns to create a new patch that could grow 211 additional cabbages at the same spacing. How many cabbages did he plant in one ro...

chemistry
a buffer is prepared by combining 10.0g of NaH2PO4 wiht 150mL of 0.20M NaOH and diluting to 2.0L. What is the pH of the buffer, Ka H2PO4-= 6.2x10-8

algebra
im practicing simplifing expressions and have been given (-9a-9)5. should i use disstributing rule if not please explain how i would have to do this problem. thnx

calculus
how do you solve the integral of 1/[(square root of x)(lnx)] from 2 to infinity? i did the p- integral theorem with 1/square root of x and got it to be a divergent integral. however i was told this was the wrong way and that i should do it by integration by parts. but i can...

Geography
In geography I'm doing pollution in antartica but I can't understand half the things on the websites I've looked at Help please!

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