Thursday
October 30, 2014

Posts by Michelle


Total # Posts: 1,623

chemistry
Why does a solute dissolve faster in hot water than cold?
March 29, 2009

Algebra
Thank you!
March 29, 2009

Algebra
Add The following (8n^6 - 6n - 5n^4) + (2n^4 + 2n^6 + 3n) I think that this is the answer but am not sure. 10n^6 - 3n^4 - 3n
March 29, 2009

Algebra
Wouldn't the + 3n at the end be - 3n?
March 29, 2009

Algebra
Add. (8n6 - 6n - 5n4) + (2n4 + 2n6 + 3n) I think I have this answer but am not sure if its 10n^6 - 3n^4 - 3n OR 10n - 3n^6 - 3n^4 I am pretty confident on the first answer. Any help is appreciated! Thanks!
March 29, 2009

Englsih
The word it has how is the correct version written when you are contracting it?
March 28, 2009

science
can anyone help me unscramble....heat likes to remain "onmfriu"
March 24, 2009

Chemistry
What is meant by the hyrdration of the hydrogen ion? Does this mean you add water? Does this mean you create hydronium ions? Are hydronium ions only created when you hydrate a concentrated acid?
March 22, 2009

Chemistry
If you mixed water and dilute sulfuric acid, rather than concentrated sulfuric acid, would the exothermic reaction be greater or less than the exothermic reaction that occurs during hydration of a concentrated sulfuric acid? If so, why?
March 22, 2009

Calculus II
Solve the Initial Value Problem: Let k and Po be positive constants. P(0)=Po dP/dt = kP^2
March 17, 2009

algebra 2
how do you solve 1/3 + 4/x=2
March 16, 2009

Algebra
Algebra - Substitution Question? A+B+C=1 A+C= -1/2 A-B+C= -7 What are the values of A, B, and C?
March 9, 2009

Biology
5' C U A C C U C A G A U U C G C C U A C C U 3' What is the DNA sequence that encodes for the word for this protein? Be sure to note the 5' and 3' ends. What is the protein? I would appreciate any feedback! Thanks! :)
March 5, 2009

Biology
5' C U A C C U C A G A U U C G C C U A C C U 3' What is the DNA sequence that encodes for the word for this protein? Be sure to note the 5' and 3' ends. What is the protein? I would appreciate any feedback! Thanks! :)
March 5, 2009

Calculus
What is the antiderivative of this? What is the antiderivative of x/((16+x^2)^(1/2))? (x / the square root of (16 + x^2))? What method did you use? Substitution, etc..? Thanks!
March 4, 2009

Math
That is what i need to know, i figured out that 4(-17) + 36 (0) 4(-17) + 36 (0) = -68 + 36 = -32 X = 0 Y = 0
March 2, 2009

Math
Graph the linear equation. I need coordinates, but don't think they match up to my choices. I would appreciate some feed back. ThankS! 4y + 36x = -32
March 2, 2009

Biology
In the following chemical reaction, what is carbon dioxide (CO2)? 12 H20 + 6 CO2 -> 1 glucose molecule + 6 O2
March 2, 2009

Algebra
Thanks for helping out I see how this fits on the graph now! So my final answer will be (0,3) {-3/7,0}?
March 2, 2009

10th grade math
3a²-a-4=0 solving for the roots,
February 21, 2009

math, solving roots
4x²-25=0
February 21, 2009

Word Problem
So then the answer would be x > 15? Thanks!
February 18, 2009

Word Problem
Photography reprints cost $0.52 each at a local photo shop. Through the mail, they cost $0.44 each plus $1.20 postage and handling. How many reprints must a customer purchase to make it less expensive to use mail order? Thanks!
February 18, 2009

Algebra
Are you a math teacher by any chance?
February 18, 2009

Algebra
Would (2,1) (3,5) (4,9) work to make this true? 4x - y = 7? X representing the first number in the pair, and y the second? Thanks!
February 18, 2009

Algebra
I need 3 ordered pairs of points that would be solutions to this equation I have an idea of what suppose to fit because I think this equation has infinate solutions. What do you all think. Thank you! 4x - y = 7
February 18, 2009

Alegebra
For a science project, Tyronce is misxing a solution that is 6 parts of sugar to 25 parts of water. How would you wirte this as a decimal
February 17, 2009

math
can two different sqaures have the same perimeter
February 16, 2009

Chemistry
At the point of freezing when the temprature has plateaued and there is an equilibrium between the liquid and solid phases which phase, solid or liquid contains the greater amount of energy? In short, when the temperature of both the liquid and the solid are the same which ...
February 16, 2009

Chemistry
When the solid and liquid phases are in equilibrium, which phase, solid or liquid, contains the most amount of energy (kenetic energy is the same)? Also, what is the difference between the melting and freezing of a substance?
February 16, 2009

Economics
Why are the multiplier and MPS inversely related? If net exports increase, is this a leakage or an injection?
February 7, 2009

Chem Help
35 C
January 31, 2009

social studies
who was moses austin?
January 29, 2009

math
write a word problem involving the number of pages in a book. then write the numerical expression that you would need to use to solve your problem.
January 26, 2009

calculus
A question on my math homework that I can't seem to solve... Rotate the region bounded by y=x^2-3x and the x-axis about the line x=4. Set up the integral to find the volume of the solid. I'm pretty sure that the integral is in terms of (dy), and has bounds of 0-4. ...
January 24, 2009

social studies
what roles did women play in medieval times?
January 22, 2009

physics
Astonomers discover a new planet orbiting a fixed point in space, but for reasons unknown, they can't directly observe a star where one is expected. The radius of the orbit is measured to be 1.85 x 10^8 km, and the lone planet completes an orbit once every 530 days. a.) ...
December 16, 2008

physics
Assuming Earth behaves as a perfect sphere with a radius of 6380 km, the standard gravitational acceleration,g, at sea level has a value of 9.80 m/s^2. a.) As Earth rotates on its axis, objects at the equator experience a slightly different value of g due to additional ...
December 16, 2008

physics
The mean distance of the planet Neptune from the Sun is 30.05 times the mean distance of Earth from the Sun. a.) Determine how many Earth-years it takes Neptune to orbit the Sun. b.) The mass of teh Sun is 1.99 x 10^30 kg, and the closest distance of Neptune from the Sun is 4....
December 16, 2008

physics
The moon is receding from the Earth by approximately 3.8 cm per year. Earth's mass is 5.98 x 10^24 kg, and its radius is 6.38 x 10^6 m. The Moon's mass is 7.3 x 10^22 kg, its radius is 1.79 x 10^6 m, and its orbital period around Earth is 27.3 days. The current average...
December 16, 2008

science
No
December 12, 2008

science
What are at least three attributes that distinguish a mold from a fungus?
December 12, 2008

Physics
i know this is alot to ask for but these 10 i can nott get out of the 30 A man pulls a 10-kg box across a smooth floor with a force of 71 newtons at an angle of 23 degrees and for a distance of 97 meters. How much work, to the nearest joule, does he do...
December 10, 2008

Physics
A man pulls a 10-kg box across a smooth floor with a force of 71 newtons at an angle of 23 degrees and for a distance of 97 meters. How much work, to the nearest joule, does he do?
December 10, 2008

algebra
{x|X is a natural number less than 1}
December 10, 2008

USHistory
I dont understand the Kentucky VA resolutions were madiosn and jefferson in accordance with e.a??
December 9, 2008

USHistory
I dont understand the Kentucky VA resolutions were madiosn and jefferson in accordance with e.a??
December 9, 2008

history
The Division of Buddhism: Theravada and Mahayana Buddhism Buddhism, the religion was born in India in the sixth century, with wide spread over a large part of Asia and many parts of the world. After the death of the Buddha, the Buddhist communities of their own have been met ...
December 5, 2008

Math
Ed's distance to the mirror is 12ft The distance from the lighthouse to the mirror is 100ft. The distance of Ed's eyes to the ground is 5ft. What is the scale factor and how tall is the lighthouse?
December 3, 2008

11th grade
why did the religons of buddhism and christianity spread when and as it did in africa during 300 bce?
December 2, 2008

MATH
WHAT MULTIPLICATION FACT CAN BE FOUND BY USING THE ARRAYS FOR 2X9 AND 5X9?
November 24, 2008

Calculus
the function of f(x) = x + sin (x) on the interval [0,b] i have to find b. two values of c that are given are (4.6658, 1.6174) that satisfy the mean value theorem on [0,b] i got b as +/- 3.29 but it has to be an integer so i think that's wrong. ' can someone please ...
November 23, 2008

drown
3b+2=6(3-b)
November 19, 2008

calculus adn geometry
Wait, why are you substituting what b equals into the original equation... How does that even help you in the first place?
November 18, 2008

Science
I need information on daphnia please
November 13, 2008

3rd grade
Yes, because multiplication needs to have equal groups. Cheer!
November 12, 2008

history
How did the civil rights movement change in the mid-1960’s
November 10, 2008

History
Why did relations between the United States and the USSR deteriorate after WWII?
November 10, 2008

HISTORY
Why did Truman decide to use the atomic bomb against Japan?
November 10, 2008

math
Thank you for your help. I have one question. How did you get .75 from t+1?
October 31, 2008

math
In the xy-plane, line l passes through the origin and is perpendicular to the line 4x+y=k, where k is a constant. If the two lines intersect at the point (t,t+1), what is the value of t? I tried drawing a picture of the problem described above, but I don't understand what...
October 31, 2008

Calculus
position function is x(t)=(t-1)^3 (2t-3) how do you find the velocity of the particle at nay time when t is greater or equal to 0? i got the derivative equation (6t-9)(t-1)^2 + 2(t-1)^3 but that is for all t.
October 28, 2008

Calculus (Answer Check)
A particle moves along the x-axis so that its velocity at time t, 0(less than or equal)t(greater or equal to)5 is given by v(t)=3(t-1)(t-3). at time t=2 the position of the particle is x(2)=0. 1. find the minimum acceleration of the particle 2. find the total distance traveled...
October 27, 2008

Calculus (Answer Check)
A particle moves along the x-axis so that its velocity at time t, 0(less than or equal)t(greater or equal to)5 is given by v(t)=3(t-1)(t-3). at time t=2 the position of the particle is x(2)=0. 1. find the minimum acceleration of the particle 2. find the total distance ...
October 27, 2008

Calculus (Answer Check)
Are my answers right? If they are wrong you dont have to tell me how to do it its okay =) A particle starts at time t=0 and moves along the x-axis so that its position at any time t(greater or equal to) 0 is given by x(t)=(t-1)^3 (2t-3) 1.find the velocity of the particle at ...
October 27, 2008

math
a man is building a studio that has a circular base. the interior of studio has a diameter of 40 feet. what is the area of the floor space?
October 26, 2008

5th grade social studies
Forest,rivers,mountains,and oceans because they grow vegetables and drink water
October 23, 2008

5th grade social studeis
What types of geographical features helped settlements grow and succed.why?
October 23, 2008

math
skip counting on the hundred chart the question is What patterns do you see with skip counts by 10's and 3's?
October 22, 2008

8th grade
Speculate about how the invention of the microscope might have helped doctors to understand what caused diseases?
October 21, 2008

physics
A boxcar of mass 200 tons at rest becomes uncoupled on a 2.5 degree grade. If the track is considered to be frictionless, what speed does the boxcar have after 10 seconds?
October 20, 2008

english
One of the two passages below follows the old-new contract. Identify it. I think it is passage one can anyone help verify if I am correct 1. The old/new contract is another principle for writing clear closed-form prose. Beginning your sentences with something old – ...
October 19, 2008

english
What is the topic sentence I think it is sentence 3 please let me know if you think it is as well Voice mail is usually part of your firm’s phone system. It is a way to digitally record messages, and it allows “random access” so you can skip, delete, save, and ...
October 19, 2008

enviromental science
what are three ocean resource problems
October 19, 2008

physics
how much time does it take for a student running t an average speed or 5.00m/s to cover a distance of 2.00km?
October 17, 2008

6th grade
what is an organism and how do i do a report on how to explain one
October 14, 2008

math
trying to figure it out so I can help my 5th grade son figure it out. No textbooks to help parents
October 6, 2008

math
Make up a set of at least 12 numbers that have the following landmarks. Maximum: 8 Range: 6 Mode: 6 Median: 5
October 6, 2008

Calculus
Using the derivative definition of f ‘ (x) = (f (x+h) – f (x)) / (h) find the derivatives of the following… 1. f(x) = (2x-1) / (x+2) 2. f(x) = sqrt (3x-1) 3. f(x) = 3x^4 my answers were: 1. –x+3 2. (3) / [2(sqrt(3x-1))] 3. 12x^3 are my answers right?
October 4, 2008

english
When I want to say in a sentence: The word unprecedented means..... does unprecedented have to be in italics, quotes, or is it fine the way it is?
October 1, 2008

chemistry/math
If aluminum has a density of 2.78 g/ml, how much space would 32 grams occupy?
September 29, 2008

biology
Would two nucleotides be sufficient to provide enough codons to code for all 20 amino acids and why? how many amino acids could be coded for by codons containing only two nucleotides? Will three nucleotides per codon work and why or why not?
September 29, 2008

British Literature,
I don't see how those examples fit the deffenition of satan being a round character either. It doesnt show that hes changed.. I mean the story is all around more indepth about him but those quotes to show that.
September 28, 2008

pre calculus
NAdia has 7 more nickels than dean has dimes. If dean gives nadia 4 of his dimes, then dean will have the same value of money as nadia. how much money do they have together (nadia only has nickels and dean only has dimes) ned has nickels, dick has dimes, and quincy has ...
September 28, 2008

math
If Mark types 79 words per minute, and he types for 44 minutes, it looks like this: 79 words per minute x 44 minutes = 3476 words in 44 minutes. (Which is the answer)
September 25, 2008

4th grade English
If you write: "Gorillas are shy, so most of them never fight", it makes sense. They're shy, therefore they don't fight. If you write: "Gorillas are shy, but most of them never fight", it implies that being shy would make them more likely to fight. ...
September 25, 2008

math
If Summer grades 25 papers in 30 minutes, and there are 4 half-hours in two hours, multiply 25x4= 100. Summer can grade 100 math papers in 2 hours. Larry can grade 22 papers in 20 minutes. 60 minutes (one hour) is three times twenty minutes, so two hours is six (doubling the ...
September 25, 2008

Chemistry
That sounds about right. K is more unstable, and reacts more readily.
September 24, 2008

dictionary
noun
September 24, 2008

Calc 1 - Factoring??
Solve the inequality. Express the solution sets as intervals or unions of intervals and show them on the real line. Use the result (square-root of a^2) = |a| as appropriate. (x+3)^2 < 2
September 24, 2008

College Sophmore
x=The Width of the Grand Canyon 381 m = x/76 This simplifies to 381 meters multiplied by 76 = 28956 meters wide.
September 24, 2008

arithmetic
1+2+3+4+5+6=21 So the number is 123456.
September 22, 2008

spell
Is the following words nouns/pronouns or verbs. They're you've weren't needn't there'd they've mustn't what'll doesn't hadn't
September 22, 2008

gemotry
Eduardo owned 6/7 of a family business. He sold 1/5 of the business to his son. wat portion of the business does he still own
September 21, 2008

geog- still
sorry to be a pain but it still doesn`t answer the question . my homework is a wordsearch and i only have clues its to do with diversity in the uk. the only 2 i can`t find is sikh temples and muslim mosques i can`t find anything in the wordsearch that matches . im so stuck ive...
September 20, 2008

geog- still
sorry to be a pain but it still doesn`t answer the question . my homework is a wordsearch and i only have clues its to do with diversity in the uk. the only 2 i can`t find is sikh temples and muslim mosques i can`t find anything in the wordsearch that matches . im so stuck ive...
September 20, 2008

geography year 8
my homework is diversity in the uk . i have a wordsearch and need to find people who have come to britain. 1/ gaelic dance - i think its jig or irish 2/ synagogues - jewish 3/ churches constructed after conquest in 1066 - Normans 4/ chop suey from a soho restaurant - chinese 5...
September 20, 2008

math
1. give an example of an absolute value inequality whose solution set is the empty set 2. explain why \x+2\ is greater than or = to -4 has all real numbers as its solution set. please help
September 16, 2008

math
can you please help me?
September 16, 2008

math
1. give an example of an absolute value inequality whose solution set is the empty set 2. explain why \x+2\ is greater than or = to -4 has all real numbers as its solution set.
September 16, 2008

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