Saturday
April 18, 2015

Posts by Kevin


Total # Posts: 994

Trig
In the equation y=4cos 6x, what does 6 represent? In general for the equation y-acosbx, what does b represent?
January 22, 2010

chemistry
Predict the Products for the following reactions and write the chemical equation. Combustion: Liquid Octane, C8H18 burn in oxygen gas. how would you set this up and predict the product? Thnx in advance whoever figures it out :)
January 21, 2010

Chemistry
"A sample of a nonpolar molecules capable of only dispersion forces can have a higher boiling point the a sample of a polar molecules capable of hydrogen bonding. This statement can only be true if the formula weight of nonpolar molecule(the answers are =,<, or >)...
January 18, 2010

Bible
I believe the 1st question is number 2. & the 2nd question is number 3. Can anyone confirm this. Thanks.
January 11, 2010

Bible
I need help with these two questions please. I cannot figure out what goes with what. Thanks. The orderly design and purpose of nature which verifies a divine intelligence is a(n) ? argument. Choises: 1. teleological 2. cosmological 3. anthropological The analogy between man ...
January 11, 2010

Bible
I don't know which one of these fits the blank. Can someone please help? The law of cause-and-effect which verifies a divine power is a(n) ? argument. Choises: 1. teleological 2. cosmological 3. anthropological
January 11, 2010

Algebra
A rectangle is 20 inches tall it's area is 260 inches what is the width
January 10, 2010

Business
What is the proper format for a research taxonomy? I have to write about the Strategic Management process.
January 10, 2010

History
I still think its #1? is that correct?
January 6, 2010

History
One of the significant changes in atmosphere in Jefferson's administration was: 1. The number of common people involved in government. 2. The closing of the bank of the united states. 3. the widespread dismissal of federalist officeholders. 4. The reinstatement of the ...
January 6, 2010

Econonmics
Assume that the gross national debt initially is equal to $3 trillion and the federal government then runs a deficit of $300 billion
December 30, 2009

Organic Chemistry
The one we used was sodium hypochlorite (NaOCl)
December 21, 2009

Organic Chemistry
What other oxidizing reagents could have been used to convert the 9-fluorenol to 9-fluorenone?
December 21, 2009

math
Ok really I don't know all of the steps but if you look at the da/dt of a) and put it over the dh/dt of b) then you get your answer. I don't know. I'm doing it right now. God Bless!
December 19, 2009

Math
When you put together unequal groups you can only add. Is this correct? Explain
December 14, 2009

Science
I believe a starfish has radial symmetry but how would I divide it using a ruler since there are 5 arms?
December 9, 2009

physics
38 Joules dude
November 30, 2009

9th grade
Mr. Mist’s ramp broke so he tried to lift the his 150 Newton box of ungraded papers with a pulley system. Mr. Mist had to pull the rope in his system 3 meters. The papers were lifted into his car by the pulley system which lifted the box 1.5 meters, while Mr. Mist only ...
November 14, 2009

Trig
How do you do this problem? 1+i(square root of 3)
November 12, 2009

phisics
To keep the cylinder in equilibrium both side must be equal. (m1)*(v^2/r)=(m2)*g Left side=Right side (v^2/r) = (m2)*g / m1 isolate “v” on the left… v^2 = (m12)*g*r/m1 v = sqrt((m2)*g*r /(m1)) plug in the values and you are done… v = sqrt(2.5*9.81*.2)/(1.5...
November 5, 2009

physics
A ball of mass 0.35 kg is fired with velocity 157 m/s into the barrel of a spring gun of mass 1.8 kg initially at rest on a frictionless surface. The ball sticks in the barrel at the point of maximum compression of the spring. No energy is lost to friction. What fraction of ...
November 1, 2009

physics
thanks
October 31, 2009

physics
A 80- kg ice hockey player standing on a frictionless sheet of ice throws a 6.2- kg bowling ball horizontally with a speed of 2.1 m/s. With what speed does the hockey player recoil?
October 31, 2009

us history
In 1754,which country claimed the least amount of land in North America
October 26, 2009

FINANCE
Tim recently invested $3,500 in a project that is promising to return 10.75 percent per year. The cash flows are expected to be as follows: End of Cash Year Flow 1 $750 2 800 3 ??? 4 950 Note that the 3rd year cash flow is unknown. Assuming the present value of this cash flow ...
October 22, 2009

Statistics
In hypothesis testing, if a claim statement is asking to test a percentage, your graph is a T or Z line?
October 21, 2009

Statistics
In hypothesis testing, if the population standard deviation is KNOWN, your graph should be labeled a T or Z line? In hypothesis testing, if the population standard deviation is NOT KNOWN, your graph should be labeled a T or Z line?
October 21, 2009

math
im learnin about y=mx+b 1.describe the line you think each equation represent Y=x, y=5, x=-3 2. The equation of a line is y=mx+2. determione the value of m when the line passes through each pint D(12.5) s(1.-3) e(-2.6) a(-5.1)
October 17, 2009

Chemistry
A student finds a medallion which could be made of pure platinium or silver. IN order to find out what the medallion is made of the student takes the medallion to a chemistry lab. The student measures the density of the medallion as follows. The medallion is placed on a ...
October 12, 2009

chemistry
A rectangular metal bar has a volume of 50.0 inches cubed.The Metal BaR weighs 1.42kg. Calculate the density of the metal in grams per cubic centimeter.
October 12, 2009

math
Brian O'Reilly earns twice as much each week as a tutor than he does pumping gas. His total weekly wages are $150 more than that of his younger sister. She earns one quarter as much as Brian does as a tutor. How much does Brian earn as a tutor?
October 11, 2009

Biology
What's the difference between LB "-" and LB "+"?
October 9, 2009

Chemistry
If 7.83 g FeCl3(s) is dissolved in enough water to make 2.50 L of solution, what is the concentration of Fe3+ in the solution?
October 9, 2009

physics
A highway curve with a radius of 430 m is banked properly for a car traveling 115 km/h. If a 1550- kg Porshe 928S rounds the curve at 220 km/h, how much sideways force must the tires exert against the road if the car does not skid?
October 7, 2009

6th grade math
how would you say .3481 in words?
September 29, 2009

math
write the six-digit number that has the digit in the thousand's place, with the remaining digits being
September 20, 2009

11th grade
1.71 cause of Sig Figs
September 9, 2009

Finance
Jenning inc. paid out total dividends equal to $ 11,124,200 in 2008. If Jennings reported Retained earnings of $320,868,600 for 2007 and retained earnings of $350,290,100 for 2008, what was Jennings reported net income in 2008?
August 27, 2009

math (tree diagram)
yo dudes hit me up on aim my screename is lilkevyy45
August 9, 2009

math (tree diagram)
heyy
August 9, 2009

chemistry
does changes in solubility between solute and solvent, just mean that the rate at which solute co2(gas) is dissolved by solvent to form co2(aq) is = to rate at which c02(aq) gains eenrgy from collitions to leave dissolved state or what? I need siome clarity.
August 6, 2009

chemistry
carbon dioxide collide with the liquid solvent and enters its dissolved states? so what does this have to do with solubility equillibrium.
August 6, 2009

chemistry
Equillibrium, an example given by my textbook confused me. First it shows a reaction inside a soft drink: co2(g)--><--co2(aq) but than it says the reaction inside a soft drink would involve solubility equillibrium because it involves a change in solubility between ...
August 6, 2009

Chemistry
I meant endothermic not endergonic sorry.
August 3, 2009

Chemistry
Since decomposition is an endergonic reaction. Does this mean it's reverse reaction synthesis is exothermic?
August 3, 2009

chemistry
6. dilution can also decrease rate of raction because you deacrease concentration?
July 21, 2009

chemistry
5. addinf water to a equillbrium system will make it more dilute and increase the volume but decrease pressure so system will shift in direction which produces more ions?
July 21, 2009

chemistry
1.If a container that is 1L has 1 mol of solid NACL , if you add more nacl will the concentration of solid increase? it should? because if you increase it to two mols it will become 2 mol/l right? so in a equillibrium system like nacl(s)--><---na+ + cl- if you increase ...
July 21, 2009

college algebra
The origin is (0,0) Both the x and y intercepts at the origin are always 0.
July 3, 2009

social studies
I agree that people should be able to help themseleves. To have a successful life you must have the mindset of a winner. To be a winner you must have three things self-confidence, determantion, and an high education.
July 1, 2009

social studies
People should be able to help themselves. If they want to make their life better they need to be motivated and should find a way to make it happen. Equal opportunity for all. You just have to work for it. If a person is in a low paying job that is probably all they really want...
July 1, 2009

6grade english
Give them fish they will eat for a day. Teach them to fish they will eat for years. With regard to low income countries and based on your knowledge and understanding of culture, society and social stratification provide support for or criticism of this statement.
July 1, 2009

math
hy,i have trouble doing (x+1) with an exponent 3 on top of the parentheses and (x+1) with an exponent 4 on top of the parentheses thank you
June 30, 2009

6th grade english
I totally agree with the statement. Everyday people around the world is trying to make life better in some kind of way. I think showing these people new skills and ways they can benefit from it, people would be more excited to learn new things everyday. I think it would be ...
June 30, 2009

6th grade english
Give them fish they will eat for a day. Teach them to fish they will eat for years. With regard to low income countries and based on your knowledge and understanding of culture, society and social stratification provide support for or criticism of this statement.
June 30, 2009

6th grade english
Give them fish they will eat for a day. Teach them to fish they will eat for years.
June 30, 2009

Chemistry
So would it be rate = (10^-7)*(10^-7)*(1.4X10^11)
May 19, 2009

Chemistry
A reaction is said to be diffusion controlled when it occurs as fast as the reactants diffuse through the solution. The following is an example of a diffusion controlled reaction. The rate constant for this reaction is 1.4x1011 M-1s-1 at 25oC and the reaction obeys the ...
May 19, 2009

calculus
integrate log base 10 x / x dx i dont understand this
March 19, 2009

CALCULUS HELP!!!
integrate 1/(x^2sqrt(1+x^2)) i know you have to use trig sub but iono how to cancel out some terms...much help is appreciated
March 19, 2009

3rd grade
kevin has $11.00 he gave terrell ave $3.00 and devin $2.00 about what fraction of his money does he have left about 1/4 about 1/3 about 1/2 about 2/3
March 4, 2009

3rd grade
kevin has $11.00 he gave terrell ave $3.00 and devin $2.00 about what fraction of his money does he have left
March 3, 2009

math
kevin has $11.00 he gave terrell ave $3.00 and devin $2.00 about what fraction of his money does he have left
March 3, 2009

algebra
I am coming up with (-5,-2,4) for my answer and I see you x=5
February 26, 2009

algebra
solve system of equation 5x+2y+z=-25 5x-3y-z=-23 3x+y+2z=-9
February 26, 2009

algebra
Did I do this problem right? (2y+5w+6)(5y+5w-4) 2y(5y)+ 2y(5w) + 2y(-4) + 5w(5y) + 5w(5w)+ 5w(-4) + 6(5y) + 6(5w) + 6(-4) then I multiplied: 10y^2 + 10wy - 8y + 25wy + 25w^2 - 20w + 30y + 30w - 24 then I combined like terms: 10y^2 + 15wy + 25w^2 + 22y + 10w - 24 final answer: ...
February 16, 2009

algebra
ok I finished the problem. Is this right? 2y(5y)+ 2y(5w) + 2y(-4) + 5w(5y) + 5w(5w)+ 5w(-4) + 6(5y) + 6(5w) + 6(-4) then I multiplied: 10y^2 + 10wy - 8y + 25wy + 25w^2 - 20w + 30y + 30w - 24 then I combined like terms: 10y^2 + 15wy + 25w^2 + 22y + 10w - 24 final answer: 10y^2...
February 16, 2009

algebra
I don't even know where to begin with this problem. multiply (2y+5w+6)(5y+5w-4)
February 16, 2009

chemistry
Ca(ClO3)2 + KCl --> CaCl2 + 3O2 + KCl Mass of test tube = 7.918g Mass of KCl/Ca(ClO3)2 mixture + tube = 19.164g Mass of KCl/CaCl2 residue + tube = 18.635g What is the weight % of Ca from the Ca(ClO3)2 impurity in the original mixture?
February 11, 2009

Math
The directions say to use a grapking utility to approximate (to two-decimal-place accuracy) any relative minimum or maximum values of the function: y=x^3 - 6x^2 + 15 Can someone please help me because my graphing calculator is not working!!!
February 8, 2009

analogies
man its hard
February 4, 2009

CHEMISTRY URGENT PLZ HELP
thanks damon
January 18, 2009

CHEMISTRY URGENT PLZ HELP
uh i dont think thats how u do it because i think you need to add and remove electrons from two separate reactions first before multiplying it out...but thank you anyway
January 18, 2009

CHEMISTRY URGENT PLZ HELP
First of all I am not the same person as before...his name was Max, my name is Kevin so i do not know that you answer this question before. Secondly, I do not know what you mean about about loss of 2 electrons, how would i use hydrogen to balance the charges when I have: SO3(2...
January 18, 2009

CHEMISTRY URGENT PLZ HELP
Write a balanced equation for the following reduction-oxidation reaction. SO3(2-) + MnO4(-) --- SO4(2–) + Mn(2+) can someone help me step by step??
January 18, 2009

CHEMISTRY
Write a balanced equation for the following reduction-oxidation reaction. SO3(2-) + MnO4(-) --- SO4(2–) + Mn(2+) can someone help me step by step??
January 18, 2009

English lit.>Grendel
Having trouble understanding the book Grendel...is there a site you know of that may help? Thank you, Kevin
January 15, 2009

physics
An object starts from rest and accelerates uniformly down an incline. If the object reaches a speed of 40 m/s in 5 seconds, what is its average speed?
January 2, 2009

college algebra
That's very cool! Thank you for your time!
December 9, 2008

college algebra
Find the sum of the first 500 positive integers. thanks for any help!
December 9, 2008

college algebra
find the general term of the following sequence 1/3, 3/5, 5/7, 7/9, ... thanks for any help!
December 9, 2008

math
find the general term of the following sequence 1/3, 3/5, 5/7, 7/9, ... thanks for any help!
December 9, 2008

s.s
i think that several states ratified the Constitution only after they were promised that a bill will protecting individual rights would be added to it. Many Antifederalists did not think that the Constitution would protect personal freedoms.
December 3, 2008

s.s
Why did Congress add the Bill of rights?
December 3, 2008

s.s
What was the main argument of the Antifederalists against the Constitution?
December 3, 2008

Thermochemistry
So q=mc(Tf-Ti) could be written as Delta H=mc(Tf-Ti) assuming the pressure is constant?
December 2, 2008

Thermochemistry
I'm confused about the difference between the q in q=mc(Tf-Ti) and (Delta)H, or enthalpy. What exactly does enthalpy mean and how is that different than q? (I'm also confused about what Gibbs Free Energy actually means; I know that if it's negative, the reaction is...
December 2, 2008

CHEM
NH3 is a base because it accepts a proton from H2O.
November 20, 2008

S.S
What impact did the Virginia Statute for religious freedom have on the U.S government?
November 9, 2008

Biology
What portion of the brain is responsible for voso motor control?
October 28, 2008

Science
A little aluminum boat (mass of 14.50g) has a volume of 450.00cm3. The boat is placed in a small pool of water and carefully filled with pennies. If each penny has a mass of 2.50g, how many pennies can be added to the boat before it sinks?
October 16, 2008

Social Studies
Why did the British army march on Lexington and Concord
October 13, 2008

Physics
A bird watcher meanders through the woods, walking 0.35 km due east, 0.65 km due south, and 2.05 km in a direction 31.0° north of west. The time required for this trip is 3.50 h. Determine the magnitude and direction (relative to due west) of the bird watcher's. Find ...
October 11, 2008

4th grade science
it does boil at 100c I have tred it with a science project in fourt grade
September 30, 2008

science
Describe the biological interrelationships among the life forms in inda
September 23, 2008

Mathematics
3x-3y=12 3x+2y=-3 2x+y=4 Solve each by reduced row echelon form and if no solution, say it is inconsistent.
September 23, 2008

Mathematics
Carletta has $10,000 to invest. As her financial consultant you recommend that she invest in Treasury Bills that yield 6%, Treasury Bonds that yield 7%, and coroporate bonds that yield 8%. Carletta wants to have an annual income of $680, and the amount invested in corporate ...
September 23, 2008

math
The first thing that you to is distribute the -5 to both the terms in parenthesese. So you get -10W-5=25. than you add five to both sides and get -10w=30. The last thing you do is divide both sides by -10. w=-3.
September 23, 2008

Mathematics
At Harlan County Damn in Nebraska, the U.S. Bureau reports that the storage content of the reservoir decreased from 117,811 acre-feet (38.4 billon gallons of water) on Septmber 6, 2006 to 115,579 acre-feet (37.7 billion gallons of water) on October 6, 2006. Suppose that the ...
September 8, 2008

social studies
unscramble idmieeflt to make two words
September 5, 2008

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