Friday
April 18, 2014

Posts by andrew


Total # Posts: 950

english
In grade 11 and trying to understand this poem which the teacher gave very little explanation for, telling to "interpret the poem for yourself" The poem is called Bushed and is written by Earl Birney. He invented a rainbow but lightning struck it down shattered it in...

math
How to convert -1.7 into fraction thanks

math 8th grade
negative one and two tenths minus 5 tenths

the subject is science
thanks

8th grade
Can we obtain water from milk, vinegar & ink. What are the steps how to do it Thanks

Math
The per capita public debt (in thousands of dollars) of the United States for the years 1940 to 1990 appears below. Create a scatterplot and determine a trend line. Based on your scatterplot, what do you expect the per capita public debt to be in 2020? Year-1940 1950 1960 1970...

7th grade
There isnt one

Chemistry
What is the balanced equation for the preparation of cis-1,2-cyclohexanediol???

Chemistry
Please help!! It's due tomorrow morning!!!!! --Why is it necessary to use a mixed aqueous-organic solvent system for the oxidation of cyclohexENE?

Calculus
If the tolerance on the volume of a cube is a 2% error then what should the tolerance be fore each side? So what i did was V=x^3 dV = 3x^2 dx dV/V = 2% What should I do next? the answer is 2/3% but I don't know how it works. Thanks.

ap biology
what is difference between blending patterns of inheritance and particulate patterns of inheritance?

11th grade
what is difference between blending patterns of inheritance and particulate patterns of inheritance?

Math riddle PIZZAZZ Worksheet
he was jumping for joy

Chemistry
I'm so confused!!!!!!!!!! I need to write out the equation for the reaction between (+)-tartaric acid and (+_)-1-phenylethylamine. I know tartaric acid is C4H6O6 and 1-phenylethylamie is C8H11N. Where do I go from here?

Spelling
Sorry, another quick question... u is a vowel, so shouldn't there be a "an" before it?/ For example: "Distress is not an universal association..." However, microsoft word keeps correcting me to say "a" instead.

Grammar
thank you!!

Grammar
Which one is correct? "There are studies and research that supports categorizing obesity as a mental disorder..." or "There are studies and research that support categorizing..."

CHEM
1.46,1.98

Phyics
A rubber ball with a radius of 4.8 cm rolls along the horizontal surface of a table with a constant linear speed v. When the ball rolls off the edge of the table, it falls 0.83 m to the floor below. If the ball completes 0.68 revolutions during its fall, what was its linear sp...

chemistry
it means that salt is made up of different stuff then the things that you use to make it.

English
A question on "The Lottery" by Shirley Jackson ? I am writing an essay explaining how the use of literary devices creates a sense of horror. I wrote down things like "withheld knowledge" (that the author not telling readers the "prize" of the lott...

science
this is the blank word

science
This is because the energy from the sun is __________ the water up. Is this heating?

Calculus
how do i find dy/dx of y = (x^3-1)/cos(x) do I start with (x^3-1)*cos(x)^-1 ? Thanks!

social
in the pacific northwest

social
i mean chinook salmon

social
what is the season that salmon return?

science
search mold in wikipedia

Spelling
hmm... e i guess

social
oh they were made of sinew?

social
um i need info on native american fishing nets

AP Chemistry
Thanks!!

AP Chemistry
2K (s) + 2H2O (l) --> 2KOH (aq) + H2 (g) When 0.400 mole of potassium reacts with excess water at STP, what is the volume of hydrogen gas produced? the answer is 4.48 liters but I keep getting wrong numbers! please help! Thanks!

AP Chemistry
since PV=nRT PV/nRT = 1 or did you mean PV=nRT? P is pressure in atm and V is volume in liter and n is # of moles and R is 0.08206 and T is tempurature in Kelvin.

5th grade math
i still dont get bob help!!!!!!!!!!

5th grade math
the sum of two numbers is 34. their difference is 18. what are the two numbers?

chemistry
Assume that the entire mass of an atom is concentrated in its nucleus, a sphere of a radius 1.5 x 10 to the -5 pm. If the mass of the atom is 2.39 x 10 to the -22 g, what is the density?

math
i think you divide 500 by 6

5th grade
thanks

5th grade
if a letter has a line on it does it mean its a long or short

chemistry
what is the total pressure of a gas mixture that contains hydrogen at 0.45atm nitrogen at 0.25 atm and argon at 0.60 atm

5th grade math urgent
Okay look: 00-01-$7586 01-02-$8022 02-03-$8502 03-04-$9249 04-05-$9877 Jason started college during the 2001-2002 year and graduated during the 04-05 year. How much did Jason's education cost? How do you do it????

social studies
thank you just wat i needed

social studies
i mean, i wanted a picture of the net

social studies
Can you find some links to a site that has a picture of a northwest indian fishing

Psychology
I have a pretty specific question... I'm wondering if the "Binge-Eating Disorder" is actually included in the DSM 4 as one of the disorders, or if it's just in there for one of future considerations.

artist
its just like a hobby. Some people like it some don't.

math
one difference between identity,zero, commutatiive and associative property

5th grade math
625 thousands

Chemistry
What volume of 3.0M Na2SO4 must be added to 25ml of 1.0M BaCl2 to produce 5.0g of BaSO4? The answer is 7.1ml but I don't get it very well. I thought I could use mole ratio of the balanced equation, but it did not work. Thanks a lot!

writing
I have to write a narrative essay about a time when i had to do something that went against my beliefs or convictions. I thought about it for like an hour, but I can't figure out a decent example. Can anyone tell me an example so I can understant what kind of topic would w...

5th grade
your question isn't clear

math
simplify and evaluate where g=3 (2g-1)^2-2g+g^2

5th grade math
25 25 out of 5 is 5 because 25divided by 5 is 6. 5x5 is 25.

math 2nd grade
58

math 2nd grade
58

English
I have a problem with 'diction' I kind of 'feel' the sentence, but I don't know what to write. Thanks a lot!! "Art is the antidote that can call us back from the edge of numbness, restoring the ability to feel for another." By using the word "...

science
Answer

science
Answer

English
I'm learing about connotations of words. Although many words have connotations that most of us agree to because they are culturally shared, some worlds cna be given a different connotation in some contexts. However, since I am a ballingual student, I'm having a hard ti...

Social Studies
Is there another famous person named John Deere. I can only find the John Deere that invented tractors.

social studies for the 3rd time
thANK YOU :)

social studies for the 3rd time
I need something that s related to California that starts with a Q

social studies(again)
i need a word about california that starts with a P

social studies ABC california book
oil

social studies ABC california book
thanks a lot:)

social studies ABC california book
and try not to do counties,I already did too many of them

social studies ABC california book
I cant find a thing that has to do with California that starts with a O (the letter) please help thank you

social studies
thank you

social studies
California

social studies
also M

social studies
im working on a social studies weird ABC thing, but I can't find anything for U. please help

social studies
thanks a lot, but tht guy didn't found the McD food chain. he just made it more popular.

social studies
what has to do with Califoria that starts with a k

social studies
what about K

social studies
I. thank you

social studies
Can you find something about California that starts with a I?

electrochemistry
I said that Hg2Cl2 acted as both the anode and cathode?

electrochemistry
What is the anode and cathode of this problem? A chemist wishes to determine the concentration of CrO4-2 ions electrochemically. A cell is constructed consisting of saturated calomel electrode (SCE) and a silver wire coated with Ag2CrO4. The SCE is composed of mercury in conta...

chemistry
which orbitals in the molecular orbital diagram contain the lone pair electrons around O? My answer: one of the lone pairs on oxygen exist in an "s" orbital. two of the lone pairs exist in "p" orbitals not involved in bonding. -is this correct.

Statistics
In a certain microwave oven on the high power setting, the time it takes a randomly chosen kernel of popcorn to pop is normally distributed with a mean of 140 seconds and a standard deviation of 25 seconds. What percentage of the kernels will fail to pop if the popcorn is cook...

PLEASE SOMEBODY Answer this Statistics question!
The local lottery sets up a game wherein a player has a chance of collecting $750. The player must choose a 3-digit number and if it matches, the player receives $750 It costs $1 to play the game. What is the expected profit (or loss) for each player.

Stats
The local lottery sets up a game wherein a player has a chance of collecting $750. The player must choose a 3-digit number and if it matches, the player receives $750 It costs $1 to play the game. What is the expected profit (or loss) for each player. PLEASE ANSWER ASAP!!!!!!!...

Statistics
The local lottery sets up a game wherein a player has a chance of collecting $750. The player must choose a 3-digit number and if it matches, the player receives $750 It costs $1 to play the game. What is the expected profit (or loss) for each player.

Statistics
Use the standard normal distribution to find P(-2.25 < z < 1.25).

Math Help Needed
I need to figure out a pattern (using an algebraic expression) that will get me from: 1 to .01, 2 to .02, 3 to .04, 4 to .08, etc. all the way to 25 to 153,948.16! HELP

Math
I need to figure out a pattern (using an algebraic expression) that will get me from: 1 to .01, 2 to .02, 3 to .04, 4 to .08, etc. all the way to 25 to 153,948.16! HELP

College Calculus (Binomial Series)
Expand f(x) = (x+x^2)/((1-x)^3) as a power series and use it to find the sum of series (SUM from n=1 to infinity) (n^2)/(2^n) PLEASE HELP.

physics
dont know if its correct but its something. p=w/t W=KE=(1/2)m(v)^2 p=(.5mv^2)/t p_inital=(.5(1600)(19.5))/11=27654watts p_final=(.5(1600)(3.2))/11=744.7...watts (p_final)-(p_inital)=26909.27...watts maybe? idk

Chemistry
When installed in the year 1,985, a cobalt-60 radiation therapy source (k = 0.131 yr-1) produced a beam capable of delivering 323 rem per minute (a unit to describe the beam intensity). What is the beam intensity (in rem/min) in the year 2007?

language arts
Which of the following sentences has a dangling modifier? A. On the way to the bank, the interest rates went down. B. By the light of the moon, I tripped over a rock. C. The dog that is man's best friend is cat's worst enemy. D. When the storm began to abate, we went h...

college calculus
evaulate an intergral for length of curve with y=(sqrt(4-x^2)) and 0 <_ x <_ 2 im lost, i think i know how to apply the formula but its so difficult to integrate and i need to show all my work!

Chemistry
What is the molarity of the resulting saline solution when you mix 1 mole HCl with 1 mole NaOH? I'll provide some basic information that I know, but could somebody tell me how to get the answer using the data? The balanced reaction is as follows: HCl+NaOH->H2O+NaCl Mola...

Algebraic Functions
but guido, if that is your real name, wait a sec how do u divide a trinomial by a binomial

math
I need help with my homework

statistics
For a sample with a mean of M=85, a score of X=90 corresponds to a z-score of z=1.00. What is the sample standard deviation?

physical education
what exercise is done to strenghten the gastronemuis? is it toe raies?

For DrBob222
I'm not surprised the answer was wrong. Chemical reactions are by mols and not by grams; therefore, 1 mol of each reactant produces 1 mol of each product but a mol is not a gram. SO, convert 0.5839 g KHC2O4 to mols, convert mols KHC2O4 to mols KOH (that's the 1:1 part)...

Chemistry
A sample of KHC2O4 weighing 0.5839 g is dissolved in 25 mL of water and an endpoint is reached when 31.99 mL of KOH has been added. Calculate the molarity of the KOH solution. KHC2O4(aq) + KOH(aq) ¨ K2C2O4(aq) + H2O(l) because the coefficents are all the same, i just...

Chemistry
Hydrogen cyanide is a weak acid with Ka = 4.9 x 10-10. Calculate the pH of a solution (to 2 decimal places) containing 2.28 g of Sr(CN)2 per 158 mL.

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