Wednesday

December 17, 2014

December 17, 2014

Number of results: 57,886

**Microeconomics**

Can someone help me with a hint to solve this problem?? Thanks!!! "Consider an oligopolistic market with two firms. Each of them produces using a cost function given by c(q)=q2. The aggregate demand in the market is given by 1000−p. Suppose that, in order to increase ...
*March 20, 2014 by JJ*

**pre-calculus**

(tan^2x-9)(2cosx+1)=0 Find one period 4cos^2x-4cosx+1=0 find all angles and name 8 angles 7sin^2x-22sinx+3=0 find all angles and name 8 angles 2cos^2x-7cosx=-3 find one period sinx(2sinx+1)=0 find one period
*April 22, 2012 by Adam*

**algebra 1 help**

6(-3-2)^2 over -3^2-2(-3)(2)+2^2 6(-3-2)^2 over -3^2-2(-3)(2)+2^2 6(-5)^2 over -9+12+4 6(-5)^2 over 3+4 6(25)^2 over 7 6x150 over 7 900 over 7 am i correct with this can i go any further . 6(-3-2)^2 over -3^2-2(-3)(2)+2^2 6(-3-2)^2 over -3^2-2(-3)(2)+2^2 6(-5)^2 over -9+12+4 6...
*March 16, 2007 by tom*

**education-need help plz**

Explain the responsibilities a teacher has in Student safety on field trips. Does a teacher have responsibility to limit their rights? Identify the rights and responsibilities a teacher has. How will your responsibilities as a teacher influence the rights of students? Is it ...
*July 18, 2008 by scooby91320002*

**English ms. sue**

ms. sue i writing narrative story on topic that every generation hve something valuble to give. that you learn from everyone. i thought of writing story on my cousin who pass away from cancer, and i going to write in third person and mention how that cancer totally traumatize ...
*November 21, 2012 by Mohammad*

**History**

I am doing a presentation on Greenland. I decided to dress up like a Greenlandic. I have a coat that would work, but I'd like to have Greenlandic looking boots. I've seen pictures of them before, and I love the way they look. I'd like to buy a pair for both my presentation, ...
*March 20, 2009 by Amelia*

**science **

mr mcmurry taked 4327 sips of mountain dew each day. each time he takes a drink he moves the bottle 45cm to his mouth and another 45cm to his mouth and another 45cm back to the table .If the bottle has a massof 567 grams (5.1newtons)how much work does Mr Mcmurry do during the ...
*October 24, 2009 by Glenn*

**5th grade**

one light year is about 9 trillion kilometers . arctus is a star that is 37 light years from earth.if you are 11 years old now,how old will you be when light that is leaving arcturus today reaches earth. how far in kilometers willit have traveled .sow your work.
*April 25, 2010 by cheyenne*

**Algebra (Intermediate)**

5. Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 9x + 6y = 60 -27x Ð 18y = -180 Here's where I am at now: 9x(3) + 6y(3) = 60 27x +18y + 60 27 x + 18y = 60 -27x -18y = 180 Im stuck here because ...
*October 11, 2010 by JerryJ*

**Math**

lisa cut a log into 4 pieces in 6 minutes. she then cut a smaller log into 8 pieces. how long should the job have taken if she worked at the same rate she had worked when cutting the first log? show all work and prove your answer.
*October 31, 2010 by DIana *

**financial health science**

ABC Health Med, has a $1,000 par value bond with an 8 percent rate outstanding. The bond has 12 years remaining to it maturity date. If interest is paid semiannual interest, what is the value of the bond when the required return is 8 percent. Show all work.
*December 17, 2010 by frances*

**chemistry**

sodium borohydride (NaBH4) is used industrially in many organic syntheses. one way to prepare it is by reacting sodium hydride with gaseous diborone. Assuming an 86.8% yield,how many grams of NaBH4 can be prepared by reacting 7.98g of sodium hydride and 8.16g of diborone? i ...
*October 3, 2011 by hlp*

**chemistry**

sodium borohydride (NaBH4) is used industrially in many organic syntheses. one way to prepare it is by reacting sodium hydride with gaseous diborone. Assuming an 86.8% yield,how many grams of NaBH4 can be prepared by reacting 7.98g of sodium hydride and 8.16g of diborone? i ...
*October 4, 2011 by help*

**Statistics-Confidence Interval**

Can someone please help me on how to work this out?? I'm so super confused. Thanks! A professor at Kaplan University claims that the average age of all Kaplan students is 36 years old. Use a 95% confidence interval to test the professor's claim. Is the professor's claim ...
*January 16, 2012 by Sara*

**physics**

A Hot Wheels car of mass 0.081 kg starts at a height of 1.42 m and goes through a loop with a height of 0.38 m with a radius of 0.16 m along a track of length 3.02 m. The car barely makes it through the loop. Since, Work = Force x distance, what is the force of friction acting...
*November 10, 2014 by Frankie*

**physics 1**

The model airplane in Figure 5.6 is flying at a speed of 13.6 m/s on a horizontal circle of radius 19.1 m. The mass of the plane is 1.20 kg. The person holding the guideline pulls it in until the radius of the circle becomes 10.6 m. The plane speeds up, and the tension in the ...
*March 11, 2014 by Anonymous*

**PHYSICS**

The model airplane in Figure 5.6 is flying at a speed of 13.6 m/s on a horizontal circle of radius 19.1 m. The mass of the plane is 1.20 kg. The person holding the guideline pulls it in until the radius of the circle becomes 10.6 m. The plane speeds up, and the tension in the ...
*March 11, 2014 by Anonymous*

**College physics**

dockworker applies a constant horizontal force of 80.0N to a block of ice on a smooth horizontal floor. thhe block starts from rest and moves 11.0m in 5.00s. (a) what is the mass of the ice block? (b) if the work stops pushing at the end of the 5.00s, How far does the block ...
*April 10, 2014 by Lesego*

**Please. I need help fast!!!!!!!**

An 800kg police boat slows down uniformly from 50km/h (E) to 20km/h(E) as it enters a harbour. If the boat slows down over a 30m distance, what is the force of friction of the boat? (Hint: you will need to convert the velocities into m/s) please show your work.
*November 23, 2014 by Anonymous*

**SIXTH GRADE MATH**

The ratio of boys to girls at a day care cent is 5 to 4. Which of the following cannot be the total number of children at the center? A. 27 children B. 54 children C. 60 children D. 72 children Is the answer 60. The reason I chose 60 children is because the total number of ...
*November 30, 2014 by Stephon*

**Math**

You have $60.00 in your wallet and want to buy some new CDs. If the CDs are $11.00 each, what number of CDs, x, can you buy? Write and solve an inequality. Then explain your answer. My answer $60.00/$11.00=x CDs 60/11=5.45 X=5 You can buy 5 CDs with $60.00 at $11.00 each. Is ...
*September 19, 2014 by Gwen*

**Psychology**

I chose the letter to match the following theories and descriptions. Could please correct me to see if I chose the correct letter to match? I am matching the following theories and descriptions with the letters. Freud's personality theory. <I pick the letter (e)> Erikson...
*October 25, 2014 by Sharon*

**algebra**

I'm pretty sure these are right but I just want to check. 1)Find the 20th term of the arithmetic sequence in which a1=3 and d=7 a.143 b.136 c.140 d.133 answer=b 2)Write an equation for the nth term of the arithmetic sequence -3,3,9,15... a.an=n+6 b.an=6n+9 c.an=6n-9 d.an=n-3 ...
*August 23, 2007 by Marissa*

**algebra**

I'm pretty sure these are right but I just want to check. 1)Find the 20th term of the arithmetic sequence in which a1=3 and d=7 a.143 b.136 c.140 d.133 answer=b 2)Write an equation for the nth term of the arithmetic sequence -3,3,9,15... a.an=n+6 b.an=6n+9 c.an=6n-9 d.an=n-3 ...
*August 24, 2007 by Marissa*

**algebra**

I'm pretty sure these are right but I just want to check. 1)Find the 20th term of the arithmetic sequence in which a1=3 and d=7 a.143 b.136 c.140 d.133 answer=b 2)Write an equation for the nth term of the arithmetic sequence -3,3,9,15... a.an=n+6 b.an=6n+9 c.an=6n-9 d.an=n-3 ...
*August 26, 2007 by Marissa*

**management**

The employee's performance objectives a. are designed by th employee only, b. ignore past work goals and objectives c. are designed by the supervisor only d.outline the employee's goals for the coming year.
*November 23, 2009 by stella*

**physics**

A person lifts a 5.5 kg cement block a vertical distance 1.1 m and then carries the block horizontally a distance 7.3 m. Determine the work done by the person and by the force of gravity in this process. J (by person) J (by force of gravity)
*January 3, 2011 by Anonymous*

**Reading**

Having trouble with context clues. I was filled with sadness to leave my friends. But I was not unhappy for long. My excitement grew as we drove because I was thrilled to see new things. 1. What does sadness mean in passage? What clues help you find out? 2. What does ...
*September 12, 2012 by Hayden*

**Grammar/english**

Predication for this sentence Our resolutions should begin at midnight on January 1. I'm not sure what you mean by predication, but I think "at midnight" and "on January 1" are redundant. Is that what you're after?? ?? One meaning for "predication" is the predicate of a ...
*December 8, 2006 by Niki*

**Spanish 1**

54. ¿Cuándo vas al centro comercial? a. seis de febrero b. las dos c. el jueves d. son las cuatros Not sure... 56. Me gustaría jugar tenis ____ las clases hoy. a. por b. después c. después de d. los fines de semana C? 57. Mañana vamos ______ parque de diversiones. a. al b. a c...
*November 10, 2010 by mysterychicken*

**Biology (Science)**

Which of the following is not true about a hypothesis? 1) Previous knowledge can help support it. 2) It is a tentative explanation. 3) It can be proven to be false. 4) It must be testable to be useful. 5) It can be proven to be true. I know for sure that 2 and 4 is not the ...
*August 21, 2013 by Sarah*

**Physics**

The average coefficient of volume expansion for carbon tetrachloride is 5.81 10-4 (°C)-1. If a 43.0 gal steel container is filled completely with carbon tetrachloride when the temperature is 10.0°C, how much will spill over when the temperature rises to 31.5°C? > I thought ...
*April 27, 2011 by Jamie*

**O Chem**

In the laboratory process of isolating Eugenol from cloves via a steam distillation, extraction, drying, and final distillation what would be the best drying agent to use? Sodium Sulfate (Capacity=high Completeness=low rate=medium) or Magnesium Sulfate(Capacity=high ...
*November 10, 2013 by BigBlue*

**calculus**

State which of the conditions are applicable to the graph of y = f(x). (Select all that apply.) lim x→infinity f(x) = −infinity lim x→a+ f(x) = L lim x→infinity f(x) = L f is continuous on [0, a] lim x→infinity f(x) = 0 f(a) is not defined lim x&#...
*September 22, 2011 by Lyric*

**Calculus**

Given: F(x)= 5x^2 a) find a simplified form of the difference quotient b) find the average rate of change (difference quotient)x=4, h=2 Please help... http://www.mathwords.com/d/difference_quotient.htm Ok I went to this site and I saw the formula, how do I set up a problem ...
*February 9, 2007 by Dee*

**correction of math**

can someone correct this for me please. Directions: Solve the system by substitution. x + y = 12 y = 2x this is what i did: in the first equation i substituted y for what i have in the second equation so now it looks like this: x +2x = 12 3x = 12 x = 4 now i substitute my x ...
*February 8, 2007 by jasmine20*

**discrete math**

Express the quantification: Existential(!)x P(x) using universal quantifications, existential quantification and logical expressions. For sake of typing this question, I'm going to let "E" be the existential quantifier, "A" be the universal quantifier", and "^" means "and": so...
*September 12, 2007 by Nikki*

**Physics**

Suppose you are given the following equation, where xf and xi represent positions at two instants of time, vxi is a velocity, a is acceleration, t is an instant of time, and a, b, and c are integers. xf = xi ta + vxi tb + 1/2 ax tc For what values of a, b, and c is this ...
*October 4, 2009 by Jess*

**ENGLISH**

You'll be alert, engrosed in the (14)material.And concentrated 100 percent. a) no change b) material, and c) material; and d) material and After reading it over and over, I think b) a comma after material would be the correct answer. I think this is a compound sentence, since ...
*August 5, 2010 by nancy*

**Math(Please check)**

What is the difference between the actual increase in profit as production increases from 5 to 6 units, and the marginal profit at a production level of 5 units where the profit function is given by p(x)= 3x^2 - 5x + 2 First I plugged 5 into the equation and got 52. Then I ...
*February 5, 2011 by Hannah*

**Physics**

A block of mass m = 5.9 kg is pulled up a è = 21° incline as in the figure with a force of magnitude F = 34 N. (a) Find the acceleration of the block if the incline is frictionless. 1 Your response differs from the correct answer by more than 10%. Double check your ...
*October 7, 2011 by Imani*

**physics**

Can anyone explain this to me? Is it correct to say that the difference in the patterns produced by monochromatic and white light is caused by the fact that monochromatic light waves interfere with each other when they pass through a diffraction grating,while the rays of white...
*January 30, 2012 by Jonathon*

**physics**

Can anyone explain this to me? Is it correct to say that the difference in the patterns produced by monochromatic and white light is caused by the fact that monochromatic light waves interfere with each other when they pass through a diffraction grating,while the rays of white...
*January 30, 2012 by Jonathon*

**CHEMISTRY**

Method for getting correct answer for this? Thank you! For the reaction A ↔ 2B K = 3.80x10-7 , if one started with 0.154 M A approximately how much A and B would there be after equilibrium had been established? a. very little A, 0.154 M B b. 0.126 M A; 0.027 M B c. 0.154...
*April 6, 2014 by Chemistry*

**math/116 algebra**

Application Practice Answer the following questions. If appropriate, use Equation Editor to show your work. First, save this file to your hard drive by selecting Save As from the File menu. Click the white space below each question to maintain proper formatting. Each part is ...
*March 21, 2011 by ruth*

**literary**

In what distant deeps or skies Burnt the fire of thine eyes? On what wings dare he aspire? What the hand dare seize the fire? and Tyger! Tyger! burning bright In the forests of the night, What immortal hand or eye Could frame thy fearful symmetry? Are "In what distant deeps or...
*October 27, 2010 by Jessica*

**physical sciences**

Imagine a circle with a diameter of 2km.if this represents an atom ,which answer would best represent the nucleus?choose the correct answer:a table tennis ball(diameter;2cm)atennis ball(diameter;7cm)avolley ball(diameter;20cm)a soccer ball(diameter;25cm)
*January 28, 2013 by qwert*

**science**

Why is it important to preserve biodiversity? A. Preservation of biodiversity prevents extinction of species, b. Preservation of biodiversity prevents the human population from increasing exponentially, c. Preservation of biodiversity disturbs the balance of ecosystems, d. ...
*January 20, 2014 by Anonymous*

**art**

I am trying to answer a question about "Lapinth and centaur, metope" I was trying to answer these questions about it: What is the relationship between the art and the culture of the related civilization? How did that genre of art influence the culture of that civilization? and...
*September 7, 2010 by Bubba*

**English**

1. This is a superlative sentence. e.g. Mr. Pitt is the heaviest of the three. 2. This is a comparative sentence. e.g. Emily is taller than Bob. 3. This sentence is in the past tense, so you should use the past form of 'go'. e.g. He (went) to the movies yeaterday. What is the...
*June 24, 2010 by rfvv*

**first steps in using a personal computer**

alphonus and larry are discussing start menu commands.alphonus will go to the control panel to see a display of all local and remore drives.larry will go to computer to make changes to some computer settings.who is correct a.neither b.both c.alphonus d.larry my answer is a ...
*November 13, 2013 by susue*

**Pschology**

A developing field in psychology is called Positive Psychology. It is exploring ways to help people become happier and productive in life. Describe the field of positive psychology and provide your critique of this particular field. What does the research suggest on the value ...
*November 20, 2012 by Janice*

**pschology**

You have received a notice from the principal of the school that a program of tangible rewards (buttons, stickers, starts, bags of popcorn, cookies) is being considered. The notice compares tangible rewards of the children with the pay adults get for work. From what we know ...
*November 8, 2012 by Anonymous*

**Physics/Math**

In a pickup game of dorm shuffleboard, students crazed by final exams use a broom to propel a calculus book along the dorm hallway. If the 3.6 kg book is pushed from rest through a distance of 0.90 m by the horizontal 22 N force from the broom and then has a speed of 1.60 m/s...
*February 10, 2007 by COFFEE*

**algebra 2**

divid 4/x^7 by 12/x^5 I got this far but Got lost can some help me 4/x^7*x^5/12= I know the 4 and the 12 will go down to 1 and 3 but what am I suppose to do with the x^5 and x^7 Right. The 4/12 reduces to 1/3. X5/X7 = 1/X2. So the answer is 1/3X2. Hi. I think this is correct. ...
*May 31, 2007 by CINDY*

**Science-Weather**

which statement best explain wy the greenhouse effect incrases earth's average temperature? a. CO2 has a high latent heat b. less infrared raditon escapes to outer space. c. More incoming solar radation is aborbed by the atmosphere. d. less incoming solar radiation is ...
*January 12, 2009 by Twilight lover*

**Math Analysis**

What is the approximate horizontal distance traveled by a soccer ball that is kicked at an angle of 30 degrees with an initial speed of 60 feet per second? a) 84 ft b) 88 ft c) 93 ft d) 97 ft e) 105 ft ==> I tried solving it by solving for x in the equation cos30 = x/60, x ...
*January 10, 2010 by Emily*

**chem**

Identify the two important classes of catalysts. Analyze the chemical reactions that take place when a biological catalyst combines with a reactant (substrate) to form an unstable intermediate. For the two important classes of catalyst I have homogeneous and heterogeneous. Is ...
*February 26, 2010 by Anonymous*

**Chemistry**

The balanced net ionic equation for the neutralization reaction involving equal molar amounts of HNO3 and KOH is ________. Express your answer as a chemical equation. Identify all of the phases in your answer. I thought it was this: HNO3(aq)+KOH(aq)-> H2O(l)+ KNO3(aq) Am I ...
*March 17, 2012 by Anonymous*

**Science (chemistry) help please**

The following data was obtained from titrating a solution containing 25 mL of 0.0100 M MgCl2 solution, 1 mL of NH3OH buffer, and 10 drops of Calmagite with EDTA. Calculate the concentration of EDTA. Report the answer with three sig figs. I don't know what to do? I know that 0....
*May 14, 2013 by andy*

**English**

1. When he was trveling by train, he met the girl. 2. Being traveling by train, he met the girl. 3. Traveling by train, he met the gril. (Are the three sentences correct and the same?)
*May 21, 2009 by John*

**maths**

use the substitution method to solve the linear system. 1. 3x=9 -x+2y=9 3x/3 = 9/3 x = 3 -x(3)+2y = 9 -3+2y = 9 2y = 12 y = 6 is (3,6) correct? =========== also, can you please tell me how to solve these? use the linear combinations to solve the linear system: 2.x+y=3 x+2y=6 3...
*November 17, 2009 by jenn*

**English**

1. The nurse mixed him a bottle of medicine. 2. The nurse made him a bottle of medicine. 3. The nurse made him a mix/mixture of medicine. (Which ones are grammatical? Is #1 a correct sentence?)
*April 10, 2011 by rfvv*

**math**

In missy's sports-cards collection, 5/7 of the cards are baseball. In frank's collection, 12/36 are baseball.Frank says they have the same fraction of baseball cards.Is he correct?
*December 20, 2011 by bebe*

**physics..**

im not completely sure im right with this question a lawn spreader is pushed across a lawn by applying a force of 95N along the handle that makes an angle 60 degrees with the horizontal. a- what is the horiz. and vert. comp. of the force. b- when the handle is lowered to 30 ...
*January 17, 2008 by hi,*

**Voter question**

A voter is practicing ________ if she ignores all news accounts that conflict with her belief that Republican candidates are always against all social programs. A. political socialization B. selective exposure C. perception identity D. position projection Is the correct answer...
*January 22, 2007 by Calinda*

**Math**

Solve the system by addition or substitution. 3x – 4y = 8 6x – 2y = 10 Please get me on the correct track for 3x -4y =8 x=4, y=1 for 6x - 2y =10 x= 2, y= 1 Solve one equation for x. 3x = 4y + 8 x = (4y + 8)/3 Insert that value for x in the other equation and solve for y. Once ...
*May 20, 2007 by Amanda*

**Math(Please help, thank you)**

I am trying to calculate my percent error for an experiment conducted. I need to compare my average density calculated to the accepted average density but I am having trouble doing this because of the conversions. My average density was 0.12 g/mm^3. The accepted value is for ...
*August 29, 2012 by Hannah*

**physics**

Two objects of equal mass are on a turning wheel. Mass 1 is located at the rim of the wheel while mass 2 is located halfway between the rim and the axis of rotation. The wheel is rotating with a non-zero angular acceleration. For each of the following statements select the ...
*September 22, 2013 by Sue*

**English**

Thank you very much. Here is a summary I need to prepare for tomorrow. I also need to rephrase the last sentence. Thank you very much, Writeacher! 1) Though Craig Jones is an office worker, he is also a talented singer who dreams of becoming a star. 2) He has already won a ...
*February 20, 2012 by Henry2*

**physics**

when a 2.50 kg object is hung vertically on a certain light spring described by hookes law the spring stretches 2.76 cm. A) what is the force constant of the spring. B) if the 2.50 kg object is removed how far will the spring strecth if a 1.25 kg block is hung on it. C) how ...
*November 6, 2011 by joe*

**math**

Evan is painting a stool that has a cylindrical seat and four rectangular prism legs. The seat has a diameter of twelve inches and a height of 2 inches. Each leg is 3 inches by 3 inches by fourteen inches. How much area will Evan have to paint? Use three point one four for pi...
*December 3, 2011 by drae*

**Physics Mechanics**

A 2.30 kg block is acted upon by a horizontal force F(x) = 30.0 - 10.0x where the force is measured in Newtons if x is measured in meters. The coefficient of kinetic friction between the block and the flat surface is 0.170. The block is initially at x = 0 m. What distance must...
*October 23, 2014 by Aya Serghosian*

**pvc aluminum charge**

If you rub a piece of PVC pipe with some wool and touch the PVC to Aluminum foil. Will the PVC be charged after rubbing it with wool?? Will the aluminum be charged? Finally can the PVC cause the aluminum to move. Please explain (hint: can the PVC give charge to the aluminum?) ...
*January 13, 2009 by kaylee*

**Physics warming a nail**

2.) Pounding a nail into wood makes the nail warmer. Consider a 5-g steel nail 6 cm long and a hammer that exerts an average force of 500 N on the nail when it is being driven into a piece of wood. The nail becomes hotter. Show that the increase in the nail's temperature is 13...
*September 20, 2009 by Mary*

**Calculus**

Let f(x) = 2x^{3}+9. Find the open intervals on which f is increasing (decreasing). Then determine the x-coordinates of all relative maxima (minima). 1. f is increasing on the intervals: 2. f is decreasing on the intervals: 3. The relative maxima of f occur at x = 4. The ...
*November 4, 2014 by Daniel*

**Chem**

why is an understanding of chemistry important in biology? All digestion, nutrition, muscle usage/reactions, cell division/reproduction, and all of the enzymatic processes at work in the body are chemisty. Even eyesight is a chemical reaction. So you need to know something ...
*June 18, 2006 by Samantha*

**Algebra**

Write the equation of the line passing through (1, 5) and (7, 5). when I work it out I get y=x+1/5 would that be right? no first you have to find the slope, notice it is zero, so you have a horizontal line horizontal lines have form y = b, where b is a constant look at your ...
*May 14, 2007 by jessica*

**Physis Home work**

Two 0.85Mtrs -long pendulums hang side by side. The masses of the pendulum bobs are 50g and 70g . The lighter bob is pulled aside until its string is horizontal and is then released from rest. It swings down and collides elastically with the other bob at the bottom of its arc...
*November 1, 2011 by Don*

**Physis Home work**

Two 0.85Mtrs -long pendulums hang side by side. The masses of the pendulum bobs are 50g and 70g . The lighter bob is pulled aside until its string is horizontal and is then released from rest. It swings down and collides elastically with the other bob at the bottom of its arc...
*November 1, 2011 by Don*

**physics**

The mass of the tray itself is 0.182 kg, and its center of gravity is located at its geometrical center. On the tray is a 1.08 kg plate of food and a 0.279 kg cup of coffee. Assume L1 = 0.0590 m, L2 = 0.138 m, L3 = 0.258 m, L4 = 0.381 m and L5 = 0.401 m. Obtain the force T ...
*March 13, 2012 by Katie*

**Chemistry**

The degradation of CF3CH2F (an HFC) by OH radicals in the troposphere is first order in each reactant and has a rate constant of k=1.6×108M−1s−1 at 4∘C. If the tropospheric concentrations of OH and CF3CH2F are 8.1×105 and 6.3×108 molecules cm−3, ...
*March 25, 2014 by Rebecca*

**History, Ms. Sue Please.. Or Damon**

According to the Adams-Onís treaty, Spain gave up claims to the __________ Territory. Texas? Ms. SUe, I asked this question earlier and it was said Florida.. My dilemma, and what is confusing most to me, Florida is not an option.. Oregon, Colorado, Texas, or OKlahoma are my ...
*September 15, 2014 by Katt*

**history**

The term Bourbon A.celebrated the French origin of many of the New South leaders B.derived from the French Bourbons who, according to Napoleon, forgot nothing and learned nothing through the ordeal of the French Revolution C.reflected the fact that some Southern political ...
*March 2, 2014 by alex *

**Statistics**

I have a take home test I am working on. Any help would be appreciated. Professor does not teach from a book so am not sure how to apply this problem to the regression equation. Thanks in advance. Problem below. Cell Phone Mins= 3.5*cost + 25 where cell phone mins measure the ...
*April 17, 2011 by SROBSON*

**classroom management**

Write a one-sentence goal for each of the seven assumptions that will support a productive and positive learning atmosphere. Your goals should focus on how you can achieve the demands of each assumption. Here are the seven assumptions. 1. Successful classroom management ...
*April 8, 2010 by scooby*

**grammar**

Hello. I could really use some help with my ESSAY. If anyone could tell me what they think of it and if anything needs corrected. Thanks Jess Well I guess the best place to start is the beginning. I was born in Kentucky, but only lived there for five years. Then moved to ...
*February 23, 2010 by Jess*

**writing**

Hello. I could really use some help with my ESSAY. If anyone could tell me what they think of it and if anything needs corrected. Thanks Jess Well I guess the best place to start is the beginning. I was born in Kentucky, but only lived there for five years. Then moved to ...
*February 24, 2010 by Jess*

**physics**

A car is equipped with a bumper that is designed to absorb collisions. The bumper is mounted to the car using pieces of flexible tubing. The car is traveling at 1.5 m/s when it collides with a rigid black wall. If the wall exerts an average force of 44.1 kN on the car as the ...
*October 5, 2012 by Vmel*

**Physics**

A 50 kg piston with a radius of 50 cm floats on a cylinder that is filled with air. The air in the cylinder fills the entire volume, and begins at a height of 1 m. The cylinder is then heated, so that the column rises to a height of 2 m. What is the work done by the air as it ...
*June 16, 2013 by Anonymous*

**English 12 Literature**

Critical Reading Identify the letter of the choice that best answers the question. According to Bede, what is true of Ireland? At the end of Morte d’Arthur, the narrator says he is not sure what happened to King Arthur. Some say he was buried by a hermit who was once the ...
*April 12, 2012 by Daja*

**Calculus**

55. Find an equation of the tangent line to the graph of f(x) =x^3 - 2x + 1 a) at (2,5); b) at (-1,2); c) at (0,1). I believe the answers are: a) y= (3/2 x) - (3/2) b) No solution c) No solution For each function, find the points on the graph at which the tangent line is ...
*October 8, 2007 by Robert*

**Intro Finance**

Not sure how to solve: Two Questions: (1)Cindy has income of $12000 in year 0. Calculate her income in year 1 if she wants to consume $26,000 in year 0 and $14,000 in year 1. Assume the interest rate is 4% per year. (2)Jonathan has income of $45000 in period 0 and $65000 in ...
*February 2, 2008 by Will Jr.*

**pre calculus**

Cot 495 degrees... a) -tan 135 degrees b) -cot 135 degrees c) cot 135 degrees d) -cot 315 degrees
*May 13, 2013 by Anonymous*

**Chemistry**

A sample of naphthalene, which should be pure white, was found to have a grayish color after the purification procedure. The melting point was correct but the melting point range was smaller. Why the gray color? Is it possible the "purification procedure" included charcoal? ...
*October 21, 2006 by Kimberly*

**math,correction**

is this correct: solve: 5(x-2)^2=3 My answer: (10 +/- sqrt 15)/(5) looks like you expanded, then used the formula and you got the right answer properly reduced. I think you are getting this!!! I don't want to confuse you but I would have done the following: (x-2)^2 = 3/5 x-2...
*April 19, 2007 by jasmine20*

**Algebra**

Find all positive values for k for which each of the following can be factored. X^2-x-k (Your answer seems to be the same as the other problem x^2+x-k ) Is this correct too? Consider your equation to be in the form ax^2 + bx = c = 0. It can be factored (that is, have real ...
*July 23, 2007 by Scott*

**Managerial Economics**

A CA resort offers year-round activities and the resort's operating costs are essentially the same in winter and summer. Mgmt charges higher nightly rates in the winter, when its average occupancy rate is 75%, than in the summer, when its occupancy rate is 85%. My question is...
*December 23, 2009 by BJ*

**Managerial Economics**

A CA resort offers year-round activities and the resort's operating costs are essentially the same in winter and summer. Mgmt charges higher nightly rates in the winter, when its average occupancy rate is 75%, than in the summer, when its occupancy rate is 85%. My question is...
*December 24, 2009 by BJ*

**english**

PLEASE CORRECT PUNCTUATION ERRORS ONLY. THANK YOU! Re: Johnson vs. Ralston We have received medical information from Midvale Clinic, and copies of all the documents we received are enclosed. We received nothing from Dr. Best, and the only items we received from Dr. Greenville ...
*February 24, 2011 by April*

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