Thursday

December 18, 2014

December 18, 2014

Total # Posts: 1,402

**Math**

Soybean meal is 12% protein, cornmeal is 6% protein. How many pounds of each should be mixed together in order to get a 240-lb mixture that is 10% protein?
*October 19, 2008*

**Math**

Solve the following system of equations. x+2y=9 (1) x=3-2y (2)
*October 19, 2008*

**NOT SURE**

can i have some facts on Barack Obama and John MaCain please
*October 17, 2008*

**Science**

Could you please explain "total internal reflection" in simple terms (suitable for a 12/13 yr old.
*October 14, 2008*

**Science**

What in total internal reflection? (diagram please)
*October 13, 2008*

**12th grade Physics**

In an experiment, a car taveling at 88m/s,west slams into a wall and comes to a halt in 0.75 seconds. What is the car's acceleration vector?
*October 7, 2008*

**chemistry**

Consider a sample containing 2.00 mol of a monatomic ideal gas that undergoes the following changes from State A to State D: State A PA=10.5atm, VA=10.00L State B PB=10.5atm, VB=5.00L State C PC=24.5atm, VC=5.00L State D PD=24.5atm, VD=22.00L Assume that the external pressure ...
*October 4, 2008*

**business**

I know they are allowed to make a profit but at the same time a place like Singapore is capitalist and pays very little tax. I assume that both choices are somewhat correct. but it's a multiple choice question and i can only choose one so i dont know which one fits more
*October 3, 2008*

**business**

which one of these are true? In a capitalist economy: a) one might a profit b) one would pay no taxes
*October 3, 2008*

**TLC error**

When a TLC plate was developed, the solvent front ren off the top of the plate. why?
*September 30, 2008*

**History**

What should never be compromised?
*September 3, 2008*

**high school algebra**

The weather during Smedley's vacation was strange -- It was cloudy on 13 different days but it was never cloudy for an entire day -- Cloudy mornings were followed by clear afternoons -- Cloudy afternoons were proceded by clear mornings ---There were 11 clear mornings and ...
*August 28, 2008*

**Math**

The weather during Smedley's vacation was strange -- It was cloudy on 13 different days but it was never cloudy for an entire day -- Cloudy mornings were followed by clear afternoons -- Cloudy afternoons were proceded by clear mornings ---There were 11 clear mornings and ...
*August 28, 2008*

**Binomial Expansion**

Thanks for the link. But what happens when there is a number in front of one of the variables, like the 2y instead of y? Thanks again.
*August 5, 2008*

**Binomial Expansion**

Write the 6th term of the expansion of (x^2-2y)^9 and simplify. Thanks!
*August 5, 2008*

**English**

very intereseting seeing the development of an answer. she is called cary in the movie not carrie
*July 16, 2008*

**Reseach paper on Opinion 5.07**

You have to start thinking beyond the question. Use your introductory setence to answer every question from the Opinion 5.07. From there begin to think of what could happen if things weren't done according to the Opinion, the legal ramifications, how some states have even ...
*June 21, 2008*

**statistics**

Commercial airliners have a maximum allowable weight of passenger checked baggage. It is known that the distribution of individual passengers checked-in baggage weight has a mean of 42 pounds and a standard deviation of 25 pounds. Suppose that a particular airplane, with a ...
*May 15, 2008*

**probability**

If 2 cards are drawn at random from a standard deck of cards with no replacement, find the probability that both cards are heart I had 13/52 multiplied by 12/51 to get an answer of 1/17 A bucket contains 4 red, 2 yellow, and 3 green balls. If one ball is taken at random what ...
*May 15, 2008*

**statistics**

Let A and B be constants such that A < B. Let z be a standard normal random variable. For what values of A does P(A<z<B)approximately equal P(z<B)? Pick ALL that apply. a. A = -9 b. A = -26 c. A = 0 d. A = 9 e. None of these are correct. This is how I'm ...
*May 10, 2008*

**Physics**

Bulb P is rated 60 W, 110 V, and bulb Q is rated 100 W, and 110 V. Which of the bulbs has the higher resistance? they have the same cannot be determined bulb P bulb Q I had they have the same.
*May 7, 2008*

**Physics**

A 120 kg football player tries to dive into the endzone at 7.5 m/s to score a touchdown. A 150 kg player dives out of the endzone into the other player at 5 m/s to try and stop him. They collide at the goalline and the tackler holds on to the player diving into the endzone. ...
*May 5, 2008*

**algebra2**

name a point that lies on the circle: (x-2)^2+(y+3)^2=16 I cannot use the points (2,1) or (6,-3) and I can't find another point that works.
*May 1, 2008*

**Science**

An airplane has to fly eastward to a destination 856 km away. If wind is blowing at 18.0 m/s northward and the air speed of the plane is 161 m/s. In what direction should the plane head to reach its destination. So I know the direction is south east but can someone give me the...
*April 30, 2008*

**Math**

Define a relation R from Z to Z by (x,y) are in the relation if and only if the absolute value of (x-y) is less than or equal to two. Is R symmetric?
*April 13, 2008*

**english: critical thinking**

Yay!! I was abit skeptical but turns out all of the answers where correct! Thanks so much guys!! 100% Hugs, Jane <3
*March 19, 2008*

**social studies**

What is the term for the process when two cultures blend forming an entirely new culture?
*March 9, 2008*

**social studies**

What group invaded the indain subcontinent from the black sea area?
*March 9, 2008*

**CALCULUS-URGENT- no one will respond!!!**

we know the series from n=0 to infinity of c(sub n)*3^n converges 1. TRUE OR FALSE the series from n=0 to infinity of c(sub n)*2^n must converge 2. TRUE OR FALSE The series from n=0 to infinity of c(sub n)*4^n must converge 3. TRUE OR FALSE the series from n=0 to infinity of c...
*March 5, 2008*

**CALCULUS-URGENT- no one will respond!!!**

find the radius and interval of convergence for the series the series from n=0 to infinity of ((-1)^n*x^n)/(n+1)
*March 5, 2008*

**CALCULUS-URGENT**

we know the series from n=0 to infinity of c(sub n)*3^n converges 1. TRUE OR FALSE the series from n=0 to infinity of c(sub n)*2^n must converge 2. TRUE OR FALSE The series from n=0 to infinity of c(sub n)*4^n must converge 3. TRUE OR FALSE the series from n=0 to infinity of c...
*March 4, 2008*

**CALCULUS-URGENT**

find the radius and interval of convergence for the series the series from n=0 to infinity of ((-1)^n*x^n)/(n+1)
*March 4, 2008*

**CALCULUS-URGENT**

find the radius and interval of convergence for the series the series from n=1 to infinity of ((-1)^(n+1)*x^n)/n! I did the ratio test so I had the Lim as n approaches infinity of -x/(n+1), but this is 0, giving no radius, so I think I did something wrong...
*March 4, 2008*

**CALCULUS**

we know the series from n=0 to infinity of c(sub n)*3^n converges 1. TRUE OR FALSE the series from n=0 to infinity of c(sub n)*2^n must converge 2. TRUE OR FALSE The series from n=0 to infinity of c(sub n)*4^n must converge 3. TRUE OR FALSE the series from n=0 to infinity of ...
*March 4, 2008*

**CALCULUS**

find the radius and interval of convergence for the series the series from n=0 to infinity of ((-1)^n*x^n)/(n+1)
*March 4, 2008*

**CALCULUS**

find the radius and interval of convergence for the series the series from n=1 to infinity of ((-1)^(n+1)*x^n)/n! I did the ratio test so I had the Lim as n approaches infinity of -x/(n+1), but this is 0, giving no radius, so I think I did something wrong...
*March 4, 2008*

**english**

Could it be... Doing right all the time will ease your conscience?
*February 18, 2008*

**english**

revising danglers re write this sentence... By doing right all the time, your conscience will feel at ease.
*February 18, 2008*

**science**

how do protein assists with immunity
*February 15, 2008*

**ALB 2**

1.Find the greatest common factor in this problem. 12a3b2, 18a2b3, 6a4b4 2.Factor each of the following polynomials. 4s _ 6st _ 14st2
*February 13, 2008*

**statistics**

3 PROFESSORS WANT TO KNOW IF HAVING 500 STUDENTS IN THEIR CLASS IS DETRIMENTAL TO PROPER LEARNING. 1ST PROFFESSOR RANDOMLY HANDS OUT THE QUESTIONNAIRE TO 50 STUDENTS; ALL 50 ARE RETURNED TO HIM DURING CLASS. 2ND PROFFESSOR HANDS OUT THE QUESTIONNAIRE TO ALL 500 STUDENTS AND ...
*February 12, 2008*

**physical science**

if an engine must do 500 joules to pull a 10 kg load up to a height of 4 meters, what is the efficiency of the engines?
*February 11, 2008*

**PHARMOCOLOGY**

aLTERNATIVES FOR GABAPENTIN, LESS SIDE EFFECTS. NEURONTIN ORIGINALLY PRESCRIBED FOR NEUROPATHY, POST BONE MARROW TRANSPLANT.
*February 6, 2008*

**Pharmocology**

WHAT ARE THE ALTERNATIVE MEDICATIONS FOR GABAPENTIN, WHEN IT HAS BEEN PRESCRIBED FOR NEUROPATHY (POST BONE -MARROW TRANSPLANT) THAT HAS LESS SIDE EFFECTS THAN nEURONTIN?
*February 4, 2008*

**History**

Yeah its D b/c i just got that question on my AP Euro test right
*February 2, 2008*

**accounting**

Thanks
*January 29, 2008*

**accounting**

Does anyone know of a good site that explains how the enter the correct amounts to the unadjusted trial balance worksheet? I thought I understood this but my amounts are wrong. Thanks
*January 29, 2008*

**environmental science**

If you were an environmental researcher and were given funding to assist with one environmental issue, which of the following topics would you choose to spend your funds on?
*January 14, 2008*

**Physics**

What is the total charge on all of the electrons in two liters, 2 kg, of water? One mole of water has a mass of 18 g and each molecule of water contains 10 electrons. Way I worked problem: (2kg)(1000g/1kg)(1mol/18g)(10e-/1mol)(-1.60e-19/1e-) What I did do wrong?
*January 13, 2008*

**Physics**

What force would you have to exert on a 326-N trunk up a 19.0° inclined plane so that it would slide down the plane with a constant velocity? What would be the direction of the force? (The coefficient of friction between the plane and the trunk is 0.328.) The force of ...
*December 16, 2007*

*****Discrete Math***, pi^2.**

In S(5), let pi=(245)(1354)(125). (a) Write pi as a product of disjoint cycles. (b) Determine pi^2, pi^5, pi^(-1) (c) What is the order of pi? Why?
*November 23, 2007*

*****Discrete Math *****

I'm not sure how to start part(a). I believe part (b) is correct, but just in case I would like to make sure it's correct. (a) Explain p^(q-1) = 1 modq , If p and q are distinct primes. Ans: I was thinking of doing something like part (b) but I felt it was somehow ...
*November 23, 2007*

***** Discrete Math *****

I would like to know if my answers are correct. I also need help solving some exercises the right way. (a) Explain why [13] is invertible in Z50. Ans: it's invertible because there's some [t]E Z50 such that [13][t]=1 (b) Use the usual algorithm to find [13]^(-1)and ...
*November 23, 2007*

***** Discrete Math *****

I have solved parts of the question, but I want to know if they are correct. Other parts I'm not sure how to do, like part b and c. g(x)=2x+1 Define g^3= g^2 o g,...,g^n =g^(n-1) o g (where "o" means composition) a) Give rules for g^2, g^3, g^4 Ans: g^2= g o g= g...
*November 23, 2007*

**Physics HS**

Doing a physics lab on elastic material - Asked to list at least three sources of error in measurments and/or laboratory technique. I really do not understand what teacher is looking for?
*October 17, 2007*

**physics**

Car moving down road accelerates at uniform rate 2.8 m/s/s for 4.63 s to reach a speed of 106.7 m/s. 1) How fast was the car initially moving? 2) What distance did it travel during the a/c/c.?
*October 17, 2007*

**Physics**

Nuts is dropped from a tree and falls for 8.5 seconds before it hit ground. 1) What was the displacement in meter of nut? 2) With what velocity doe nut hit ground? 3) What is the velocity of nut when it has fallen to 4.25 seconds? 4) What is displacement of nut during the time...
*October 17, 2007*

**algebra**

nope I am positive it is the way I have it written. This problem has caused me more grief because I thought there should have been a "x" in it also. Thanks for looking at it for me.
*October 6, 2007*

**algebra**

I need to divide this but I am a little confused. I hope this makes sense I tried to make sure I have the parenthesis in all the right spots [(x^2-49y^2)/(6x^2+42y)] / (x^2 - 7xy) [(x^2-49y^2)/(6x^2+42y)]*[1/(x^2 - 7xy)] {[(x+7y)(x-7y)]/6(x^2+7y)]}*[1/ x(x-7y)] {[(x-7y)]/6(x^2...
*October 6, 2007*

**Int Alegbra**

2nd question Flagpole is secured on opp. sides by 2 wires. each of which is 5 ft longer that the pole. Distance between the points where the wire are fixed = to the length of one wire. How tall us flagpole to nearest inch?
*September 30, 2007*

**Int Alegbra**

2 more problems - Factory is to be bulit on a lot 180 x 240 . Local building code - specifies that lawn uniform width and equal in area of the factory which it surrounds. What must the width of this lawn be? Dimensions of the factory.
*September 30, 2007*

**Int Alegbra**

I need some help. A parcel of land is 6 ft longer than it is wide. The diagonal from one corner to the opposite corner is 174ft. What are the dimensions of the parcel? Thanks for your help.
*September 30, 2007*

**English Honors 11th**

Major themes of Beowulf? Is this considered a classic epic poem?
*September 27, 2007*

**Algebra 1**

Determine the maximum and minimum values for the following set.10, –45, 46, 15, –42, –13
*September 24, 2007*

**Physics**

Convert 1,953 grams/cubic centimeters into kilograms/cubic meters.
*September 19, 2007*

**Physics**

How do I convert 289 kilograms/square meter into grams/square centimeter?
*September 19, 2007*

**precalculus**

Luigi sells one size of pizza but he claims that his selection of toppings allows for :more than 4000 different choices." What is the smallest number of toppings Luigi could offer?
*September 9, 2007*

**precalculus**

Suppose that wo dice, one red and one green are rolled. How Many different outcomes are possible for the pair of dice?
*September 9, 2007*

**precalculus**

problem with permutation - An omelet can be ordered plain or with any or all of the following fillings: cheese, onions, peppers. How many different kinds omelets are possible?
*September 9, 2007*

**Chemistry**

Thanks
*September 8, 2007*

**Chemistry**

I have to work out the percentage change in the proportion of carbon dioxide in the atmosphere between certain time periods represented on a graph.If someone could give me some hints on how to approach this I would be very grateful just not sure what to arrange calculation.
*September 8, 2007*

**Chemistry**

Thank you
*September 8, 2007*

**Environmental Science**

Are u at university? Write an essay.
*August 24, 2007*

**business law**

1.A federal agency collects documents in its law enforcement activities, these documents are: a. always secret under the Privacy Act. b. available to the public under the Freedom of Information Act, unless they contain trade secrets, information related to national security, ...
*July 31, 2007*

**math**

I need to know if I have this set up correctly. The perimeter of a rectangle is to be no greater than 300 in., and the length must be 125 in, Write an inequality representing the maximum perimeter. 300>2(125)+2w thanks 300>2(125)+2w
*July 26, 2007*

**science**

1s2 2x2 2p6 3s2 3p6 is the electron configuration ofr for which ion? I believe your 2x2 should be 2s2. You have 18 electrons in filled orbitals. That could be a +1 charged element 19 (K+) or a +2 charged element 20 (Ca++) \, for example. In either case, it is a very stable ion...
*July 25, 2007*

**Math**

Finding the reciprocal of this problem. Would like to know if I am doing it right. (-1/5)(15)= -15/5= -5/15= -1/5 The last step is wrong. Wouldn't it be done like this? -1/5 * 15/1=-15/5=-3? yes, so far as you have gone, but they ask for the reciprocal. That would be -1/3 ...
*June 15, 2007*

**Describing**

How do I describe a whale in a "scintific" version? scientific? http://www.google.com/search?q=scientific+description+whale&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7&rlz=1I7SUNA Ignoring the second link, there are several sites here that ...
*May 28, 2007*

**geology**

if gabbro cut across sandstone and schist and schist is the oldest meaning the bottom layer of sediment would the gabbro be the youngest layer im getting really mixed up ive searched on the web for a diagrame but they show intrusions of all kinds i need help in finding a ...
*April 27, 2007*

**oxidation**

hydrogen peroxide is the oxidizing agent
*April 19, 2007*

**biology**

two fruitflies were mated. Red eys and normal wings are dominant to black eyes and vestigial wings. Female: Red eyes, normal wings. Male: Red eyes, vestigial wings. a) what are the possible genotypes of the female b) what are the possible genotypes of the male; c) pick one of ...
*April 17, 2007*

**sports**

can anyone unscramble oeblssaetn its a baseball word. if you can you're my hero =] stolen base
*April 11, 2007*

**biology**

what difference would there be in the product cells at telophase II of the meiosis if there had been one crossing over at a position half way betwwen the huntington disease gene and the centromere from one pair of autosomes (chromosome 4)has a short arm and a long arm on the ...
*March 26, 2007*

**chemistry**

please can u help i need to a structure of a polymer and i dentify the monomer unit and include three monomer units,from the compound CH2=CH-CH-OH CH3 AND STATE THE POLYMERIZATION INVOLVED IN FORMING THE POLYMER,please help i have tried ,but i cant make head nor tail of it The...
*March 6, 2007*

**chemistry,**

,I NEED TO DRAW A LEWIS STRUCTURE for C2n2,cyanogen,and to state the noble gas,i know the answer is neon,but i have far to many electrons and am getting the gas argon,please help :N:::C:C:::N: please where do u think i am going wrong I don't know. You didn't show any ...
*March 3, 2007*

**Math**

How do you solve an eguation with 2 variables? You have to have two independent equations to solve for each of the variables.
*March 3, 2007*

**Grammar**

Which sentence is correct? 1. Donna is taller than I. 2. Donna is taller than me. No one at school is sure about this answer. Donna is taller than I. If you say it from your perspective you would say: I am taller than Donna. Not, Me is taller than Donna. er woops, i mean I am ...
*February 28, 2007*

**Chemistry**

I - 127
*February 8, 2007*

**Math/Physics**

so when is the velocity zero then?
*February 1, 2007*

**variations**

find a solution for this problem: (2,4), 1/2 = y I do not understand your notation. Are you looking for a function y(x) that goes through the point (x=2, y=4), and has slope 1/2?
*November 30, 2006*

**Science**

I asked about this earlier and got an answer that caused me to rethink my process. Is this a good way to measure iron corrosion: weigh a nail, put it in water and let it rust, remove the rust (in my experiment the rust has come off easily, with just a wipe), and weigh it again...
*November 26, 2006*

**Science**

I am doing an experiment about rust. I need a way to measure the rust that grows on various nails submerged in glasses of water (and other stuff). My plan is to use an analytical balance, measure nails with no rust and the nails after rusting and the second weight should be ...
*November 25, 2006*

**math**

a line through ( 0,13) is 5 units from the origin in quadrant 1. find the equation. please help me thanks!
*November 18, 2006*

**famous australians**

What are the sites for Sally Morgan. http://www.google.com/search?as_q=%22sally+morgan%22+australia&num=10&hl=en&btnG=Google+Search&as_epq=&as_oq=&as_eq=&lr=&as_ft=i&as_filetype=&as_qdr=all&as_nlo=&as_nhi=&as_occt=any&as_dt=i&as_sitesearch=&as_rights=&safe=images Here's a ...
*November 4, 2006*

**physics**

How far (in meters) above the earth's surface will the acceleration of gravity be 18.0 % of what it is on the surface?
*October 16, 2006*

**Physical Chemistry**

The measured osmotic pressure of seawater is 25 atm at 273K. a.) What is the activity of water in seawater at 273 K? Take the partial molar volume of water in seawater to be 0.018 M-1. b.) The vapor pressure of pure water at 273 K is 4.6 torr. What is the vapor pressure of ...
*October 12, 2006*

**science**

what is a hoodoo and what does it look like This site has pictures as well as an explanation of hoodoos. http://en.wikipedia.org/wiki/Hoodoo_%28geology%29 definitions of-cell,enzymes,glucose,lifecycle,liter,mass,matter
*October 2, 2006*

**novel= death on the ice**

summary of the book
*September 22, 2006*

**ART & DESIGN**

IN ART & DESIGN CAN YOU TELL ME WHAT A RECTANGLE WITH THE WORD "LINE" INSIDE IT MEANS? Since this is not my area of expertise, I searched Google under many different key words, but I couldn't find any applicable sources. Sorry that I could not help. Thanks for ...
*September 7, 2006*

**immigration**

1.What is the effect of immmigration in future size in composition in United States? 2.What is the influence of immigration on the overall economy? 3.What is impact of immigration on federal,state and local government? pls..if who knows,pls answer it..i need some help im ...
*August 31, 2006*

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