Friday

December 19, 2014

December 19, 2014

Number of results: 13,521

**Calculus (pleas help!)**

For what values of k is lim x -> INF coshkx/sin2x finite?
*March 18, 2011 by Abi*

**Calculus (pleas help)**

Find the inflection points of f(x)=6x^4+34x^3−18x^2+10. (Give your answers as a comma separated list, e.g., 3,-2.)
*March 31, 2011 by Cady*

**Algebra**

4(x-2)=7(1+2x) what is x pleas pleas help
*October 7, 2010 by Mailah Rivers*

**Calculus (pleas help!)**

Find constants a and b in the function f(x)=axe^bx such that f(1/8)=1 and the function has a local maximum at x=1/8. a= b= Please help me with this one...
*March 31, 2011 by Fernando*

**calculus pleas pleas help, derivates**

what is the derivative of x/tan(x) and find f'(pi/4) f'(x)=(tanx-x*sec(x)^2)/(tanx)^2 That's the quotient rule for derivatives or as my teacher says: Low,low, low D'High, minus High d'low all over low square that's the quotient rule. It's a song which helps. D'High or d'low ...
*April 5, 2007 by david*

**Calculus (pleas help!!!)**

Find the formula for a function of the form y=Asin(Bx)+C with a maximum at (0.5,0), a minimum at (1.5,−4), and no critical points between these two points.
*April 6, 2011 by Karku*

**Calculus (pleas help I really need to check this)**

Consider a window the shape of which is a rectangle of height h surmounted a triangle having a height T that is 1.3 times the width w of the rectangle. If the cross-sectional area is A, determine the dimensions of the window which minimize the perimeter. h=______ w=______ What...
*April 11, 2011 by Katrina*

**Calculus (pleas help!!!)**

Find a formula for a curve of the form y=e^((−(x−a)^2)/b) for b greater than 0 with a local maximum at x=−5 and points of inflection at x=−8 and x=−2.
*April 6, 2011 by Claudia*

**Calculus (pleas help!)**

For what values of k is lim x -> INF coshkx/sin2x finite? (Enter your answer as an interval or list of intervals, for example, (-infinity,3], (5,7). Enter none if no values of k will work.) Please help..
*March 17, 2011 by Abi*

**Calculus (pleas help!)**

For what values of k is lim x -> INF coshkx/sin2x finite? (Enter your answer as an interval or list of intervals, for example, (-infinity,3], (5,7). Enter none if no values of k will work.) Please help..
*March 17, 2011 by Abi*

**Calculus (please help I really need to check this)**

Consider a window the shape of which is a rectangle of height h surmounted a triangle having a height T that is 1.3 times the width w of the rectangle. If the cross-sectional area is A, determine the dimensions of the window which minimize the perimeter. h=______ w=______ What...
*April 11, 2011 by Katrina*

**Calculus**

A particle travels along the x-axis so that its velocity is given by v(t)=cos3x for 0<(or equal to)t<(or equal to)5. When t=0, the particle is at x=5. a. What is the smallest x-coordinate of the particle? b. What is the total distance traveled? c. At what t is the ...
*January 10, 2012 by Dalton*

**Calculus (pleas help!)**

Find the slope of the tangent line to the ellipse x^2/36 + y^2/49 =1 at the point (x,y). slope =_______ Are there any points where the slope is not defined? (Enter them as comma-separated ordered-pairs, e.g., (1,3), (-2,5). Enter none if there are no such points.) slope is ...
*March 17, 2011 by Abi*

**help**

pleas help me soon ihave examnation on that
*October 29, 2010 by hashm*

**Maths**

3(3-4d)=57 could you pleas show method thanks
*January 28, 2011 by Arran*

**math**

1 3/5 - 5/6 =8/5 - 6/5 =2/5 or is it =1/3/5 - 5/6 =48/30 - 25/30 =23/30 I don't know which one is right. Pleas e help!
*November 23, 2014 by charles*

**algebra 2**

pleas help me with my home work 00703600
*June 4, 2012 by sara *

**math problem**

pleas write interval notation 7<x<13
*January 15, 2012 by Lavern*

**History West Civ.**

What were some of Pope Urbans Pleas?
*December 8, 2008 by Steve*

**chem**

What is the chemical formula of fertilizer 13-13-13. Pleas tell me. Thanks a lot
*February 7, 2010 by bun*

**Math **

What is the formula of trapezium of altitude.answer this question pleas.e
*October 6, 2011 by Anonymous*

**Math **

What is the formula of trapezium of altitude.answer this question pleas.e
*October 6, 2011 by Anonymous*

**Math **

What is the formula of trapezium of altitude.answer this question pleas.e
*October 6, 2011 by Himani*

**Engineering Maths**

Pleas help solve the ffg. differential equation: dy/dx-(1+1/x)y=y^2
*February 22, 2013 by Taldil*

**Calculus (pleas help I really need to check this)**

Assume that each of the follwing functions gives the position of an object at time t. Find the velocities indicated by setting up and evaluating a limt algebraically. (a) s(t) = 3t^2, Find v(-1). (b) s(t) = 1/t , Find v(2). (c) s(t) = square root of t, Find v(1). The answers ...
*February 17, 2011 by Catherine*

**Calculus (pleas help!)**

Consider the function f(x)=12x^5+60x^4−100x^3+4. For this function there are four important intervals: (−INF,A], [A,B] ,[B,C] , and [C,INF) where A, B, and C are the critical numbers. Find A, B, and C. At each critical number A, B, and C does f(x) have a local min...
*March 31, 2011 by Karku*

**trigonometry**

express secA in terms of cotA? can you pleas say how to solve this??
*May 17, 2011 by aswathi*

**Math 8 - help!**

Write the equation of the line that passes through the points (1,6) and (-1,-2) pleas help
*January 23, 2013 by Laruen *

**Pleas Check More Of My Work(MathGuru)**

1. Which line is the flattest (or is less steep)? Why? a.
*February 6, 2007 by Margie*

**SOCIAL STUDIES**

Who is affected by the Florida Cession? What is the orgin (country)of the Annexation of Texas? Pleas Help!
*February 4, 2010 by Happy Face*

**SOCIAL STUDIES!!**

Who is affected by the Florida Cession? What is the orgin (country)of the Annexation of Texas? Pleas Help!
*February 4, 2010 by Happy Face*

**chemistry**

Pleas does any one know how to calculate the number of isomers of an organic compound. Any formula pls
*March 28, 2014 by ogboyeb*

**psy285**

People with long hair do better on an audio memory test is this a causation or correlation, pleas help
*December 8, 2008 by Julissa*

**algebra**

Pleas help with this. Explain the steps so I can understand what I am doing. solve 0.3x + 9<_ 0.7x -8 the solution is {x|x ? ? } _ this line is suppose to go under the 9 but I don't know how on computer do you?
*September 11, 2009 by algebra*

**Math**

how to multiply amd simplify of -8/63 x 21/32 x -9/42 = Pleas show work or give examples of simular problems
*February 27, 2011 by TK*

**math**

solve the inequality, write answer using interval notation pleas show the work 50/x+4+1<4x
*November 11, 2011 by mz tee*

**Social studies **

Ms.sue you know the question I wrote yesterday could give me the starting point of that story pleas
*October 9, 2014 by Sabrina*

**Calculus (pleas help!!!)**

Let p(x)=x^2(a−x), where a is constant and a greater than 0. Find the local maxima and minima of p. (Enter your maxima and minima as comma-separated xvalue,classification pairs. For example, if you found that x=−2 was a local minimum and x=3 was a local maximum, ...
*April 6, 2011 by Claudia*

**biology**

Help me to understand diverse organism! Pleas also include website that help you become better at taking notes. Thank you..
*May 31, 2012 by ftcolleg*

**chemistry**

What is the balanced equation for the combustion of 1.00 mol of camphor, C10H16O(s). I searched the web, but cant find anything, can someone pleas help?
*December 8, 2008 by Brit*

**English paper**

i need to come up with a symbol for the them of "When you put effort into reaching your goals, you can succeed." but i cant think of any! pleas help! its due 2morrow!
*September 17, 2007 by pinkpolkadots7*

**Math (ms sue or Kuai pleas e help)**

The "4" ranch is 7680 acres. It is a rectangle that is a mile longer than it is wide. What are the dimensions of the ranch?
*November 13, 2013 by Kristen*

**Math**

A photocopier copies 80 pages in 4 minutes. How much time will he take to copy 200 pages? Can someone pleas explain how to do it.
*October 12, 2014 by Eden S.*

**Math desperate**

If you could select another number to represent the number of minutes in an hour, what would be a good choice? Why? I am not sure what to chose so I need help Pleas help me
*September 12, 2013 by Anonymous *

**Social studies**

Ms.Sue but how do I make all of this information into a big huge story. Could you give me the starting point. And could you tell me a place which actually matches the info. You gives me pleas.
*October 8, 2014 by Sabrina*

**Algebra**

Can someone pleas give me an example of a nonlinear function with 2 inputs? I have to provide 5 problems for class and have no idea where to begin or how to set up the problem.
*October 6, 2010 by Sam*

**Physica**

If the length of a wire is doubled and its cross – section area decreased to half ,the resistivity of the wire becomes the same ( put true or false) pleas drwls
*July 16, 2012 by axxxxxxxx*

**Physica**

If the length of a wire is doubled and its cross – section area decreased to half ,the resistivity of the wire becomes the same ( put true or false) pleas drwls
*July 16, 2012 by lllllllll*

**Calculus (pleas help!!!)**

Let f(x)=e^(2x)-kx, for k greater than 0. Using a calculator or computer, sketch the graph of f for k=1/9, 1/6,1/3,1/2,1,2,4. Describe what happens as k changes. f(x) has a local minimum. Find the location of the minimum. x= ____ Find the y-coordinate of the minimum. y= _____ ...
*April 6, 2011 by Eva*

**physics (check my work pleas)**

A 5.00kg ball is swung at the end of a 1.25 m chain with a w of 2.0s^-1. Find the balls a)V (m/s) b) KE 1/2mv^2 c) I, inertia d) Ke with I e) Fc--> centripetal force Work a) v=rw v= (1.25m)(2.0s^-1) v= 2.5 m/s b) 1/2 mv^2 (.5)(5)(2.5)^2 c) I=mr^2 = (5)(1.25)^2 = 15.6 d0 =.5...
*December 11, 2006 by susane*

**CHEM**

a period 2 nonmetal, X, forms the molecular compound NX3. Which of the following are also correct formulas for molecular compounds involving X? HX OX2 C2X pleas explain why thank you so much
*February 25, 2014 by layla*

**books**

"Hi. This is my first time here. Anyway, what do I do to answer this statement?- 'Discuss the the narrator's success in the context of this statement. (Statement: How can a mother's pleas... [Source: The Pact])'"
*July 26, 2012 by Noah*

**Economics**

My teacher give an investigation. Topic is easay of poverty include characteristics of poverty and the causes of poverty. Please anybody who can help me, i'm ready for a help pleas by the grace of god i nead a help.
*August 31, 2011 by Ritshidze*

**chemistry ap!!!**

Neutron diffraction is an important technique for determining the structures of molecules. Calculate the velocity of a neutron needed to achieve a wavelength of 0.989 Å. i used the equation and got 4.37, but its not right! pleas help someone
*October 19, 2011 by kela*

**Outside of School (question) **

What kind of activities I can do outside of school????? Pleas list if you have any ideas. Thank YOU! :)
*December 1, 2011 by Laruen *

**english**

hi can someone please pleas help me. All I need is a thesis for this question that I am writing an essay for. Analyze the impact of the Atlantic trade routes established in the mid 1600's on economic development in the British North American Colonies.
*July 23, 2008 by Ben*

**QUICK! BE THE FOURTH PERSON TO CLICK TO WIN BIG $!**

Sorry to trick you, but it is for a survey, if you clicked pleas post a comment, I am trying to figure out how many people fall for things like this that are only viruses for my tech. class. Thanks!
*May 18, 2010 by Anonymous*

**Math**

Bill is making 22 small pizzas for a party. He has 16 cups of flour. Each pizza crust takes 3/4 cup of flour. Does he have enough flour? Pleas show why your answer is correct.
*October 29, 2013 by Anonymous *

**Math**

If there are forty new students in a class and the students have to shake each others hand once, how many hand shakes will occur? Pleas help me i am confused.............:(:( i need a formula
*September 9, 2010 by Katherine*

**Math**

Calculate the simple interest on each amount the total amount at the end. A deposit of $2550.00 that earns 3% interest over 30 months. Pleas show your steps! Thankyou (:
*October 14, 2010 by Vanessa*

**Calculus (pleas help!!!)**

Find the absolute maximum and absolute minimum values of the function f(x)=(x−2)(x−5)^3+11 on each of the indicated intervals. Enter -1000 for any absolute extrema that does not exist. (A) Interval = [1,4] Absolute maximum = Absolute minimum = (B) Interval = [1,8...
*April 5, 2011 by Cady*

**Calculus (pleas help!!!)**

Find the absolute maximum and absolute minimum values of the function f(x)=(x−2)(x−5)^3+11 on each of the indicated intervals. Enter -1000 for any absolute extrema that does not exist. (A) Interval = [1,4] Absolute maximum = Absolute minimum = (B) Interval = [1,8...
*April 5, 2011 by Cady*

**Global history**

The age of imperialism was marked by A. A decrease in the number of naval ships. B. The expansion of American political influence C. An increase interest in the plight of day laborers D. The reduction of military intervention in other countries I think the answer is b or d. ...
*December 16, 2013 by Kiki*

**Calculus (pleas help!!!)**

A) If x^2+y^3−xy^2=5, find dy/dx in terms of x and y. dy/dx=________ B) Using your answer for dy/dx, fill in the following table of approximate y-values of points on the curve near x=1 y=2. 0.96 ______ 0.98 ______ 1.02 ______ 1.04 ______ C) Finally, find the y-value for ...
*March 16, 2011 by Catherine*

**Calculus (pleas help!!!)**

Water is leaking out of an inverted conical tank at a rate of 1100.0 cubic centimeters per min at the same time that water is being pumped into the tank at a constant rate. The tank has height 15.0 meters and the diameter at the top is 5.0 meters. If the water level is rising ...
*April 12, 2011 by Cecille*

**math12A TRIG pleas help**

a farmer wishes to fence a field in the form of a right triangle.If one angle of the right triangle is 43.2 degree and the hypotenuse is 200yard,find the amount of fencing needed.
*February 20, 2014 by Anonymous*

**Chemistry**

If we have solution of 4g CH3COONa and 4g NaOH obtained NaCl with efficiency 90% we have to calculate pH oh Nacl and we know that Ka= 1.8x10ˆ-5. Pleas help me i have exam tnext weak Im strudent but I dont undestant this???
*November 7, 2012 by Linda Berisha*

**English**

Similies 1. As innocent as a lamb Metaphors 1. Love is a lemon-either bitter or sweet 2.Life is a mere dream,a fleeting shadow on a cloudy day Idioms 1. a chip on your shoulder 2.a house divided against itself cannot stand can you tell me what each mean pleas and thank you
*January 29, 2009 by Jazmin*

**Pre-Calculus/Calculus**

I am too embarassed to ask this Calculus (really pre-calculus) question in tutoring, because I know I should know. Is the inverse of f(x)=3x-1 actually f(x)=1/3x+1? How do I find it? What if it asks the same equation replaced with f to the -1 power (x)? I think I know how the ...
*July 1, 2008 by Molly*

**Algebra**

Can you pleas Solve the quadric equation step by step 4x square =13x+2 4x^2 = 13x + 2 subtract 13x and 2 from both sides 4x^2 - 13x - 2 = 0 Now use the quadratic formula, since it does not factor.
*April 11, 2007 by Tony*

**7th grade**

I created a food chain with three organisms corn,cow,and humans. Can only pleas tell me if I can make a food web out of my chain and what other organisms would i add?
*January 5, 2009 by Peyton*

**adult education**

I WANT TO WRITE ESSAY describing what us government should do for new orleana and Haiti haveboth brought forth pleas for american aid;oil spills in gulf statesare creating enviromentalconcernes . the wars are causing loss of life . and where you believe taxpayer dollars shauld...
*November 7, 2010 by NAH*

**Chemistry (pleas help!)**

A radio wave has a wavelength of 1.0 km. What is the radio frequency? 0.30 MHz 300 KHz 3.0 MHz 30 KHz
*March 25, 2011 by Otto*

**physics**

in a game a toy car slides down a slop if the top of the slope is 2 m higher than the foot of the slope how fast will the car be moving when it reaches the foot assume that all of its g.p.e is transformed to k.e (i'm 8th grade so simple answers pleas)
*January 18, 2014 by jack*

**World history**

Pleas help? In what ways were the Indus Valley people an advanced civilization? In what ways did their civilization compare to an advanced modern civilization today?
*February 27, 2013 by Unknown*

**Chemistry**

BrO3- + 5Br- + 6H+ <--> 3Br2 + 3H2O If 25.0 ml of 0.200-molar BrO3- is mixed with 30.0 ml of 0.45-molar Br- solution that contains a large excess of H+, what is the amount of Br2 formed, according to the above equation? The answer is 0.00810 moles but I don't know how to...
*December 16, 2008 by Andrew*

**Calculus**

What is the use of Calculus? How is it use in jobs? What jobs use Calculus? Calculus is used in engineering, economics, any physical science, and in business (e.g., actuary studies and statistics).
*May 5, 2007 by Anonymous*

**Math **

A scientists income over 3 years was $72,000, $76,000, and $77,000. He won an award the next year, so his income was $1,080,000. By how much does the outlier increase the scientist mean annual income? Pleas help me and work out the problem
*January 10, 2012 by Kathy*

**English**

"You should just go somewhere. You ruined our relationship, and I don't want to talk to you anymore," Bertha said to Mitchell as he begged her for forgiveness, "But, Bertha, you are the best girl in the world. You make my dreams come true." Bertha ignored his pleas. I think it...
*March 15, 2014 by Sue*

**science**

the quetion says "f the half life of Americium-241 is 433 years, &your sample size is 80 grams, how much will remain after 1,732 years?" i dont quite understand how to solve this problem... PLEAS HELP. SOS (gotta test 2morrow, and dont really know how to do these problems ...
*January 15, 2009 by brianna*

**Vocabulary**

How could I use the word charecter in a sentence? Charecter as in a letters characters. And how could I use the word calligrapher in a sentence? And writetecher, pleas don't answer my questions because your not giving me any help at all. And I am a 4th grader.
*October 2, 2008 by Chelsea*

**Algebra Grade 7**

Newtown is 522 km west of Jamesburg. Pottsville is 356 km east of Jamesburg and 928 east of Mayfield. How far and in what direction is Newton from Mayfield? Pleas help me,thank ya. ♥dino♥
*October 26, 2012 by rawr... im a dinosaur.... rawr *

**Math ?**

Pleas Help! I need to finish my project but I dont understand what there asking regarding a jacuzzi. I think measurements is needed for a cyclinder shape at the 3ft deep with people sitting, six people seating 2"wide, volume of water is 150 cubic ft total. How much volume, ...
*January 2, 2011 by Sarah*

**Calculus (pleas help I really need help with this)**

Consider a window the shape of which is a rectangle of height h surmounted a triangle having a height T that is 1.3 times the width w of the rectangle. If the cross-sectional area is A, determine the dimensions of the window which minimize the perimeter. h=______ w=______ What...
*April 10, 2011 by Katrina*

**math**

Aarthi borrowed $18,500 at 5%p.a from her father tostart her software business. at the end of 3 months she paid him $5,000 and $6,000 at the end of 8 months. how much would she have to pay him at the end of 16 months to clear the balance? pleas answer!
*November 29, 2012 by flor*

**HCA210**

How do health care facilities use electronic (or computerized ) medical records(EMR)? Pleas tell me if this is right They use EMR medical records for patient safety , such as physician orders,exam and test reports are a legal document.
*August 28, 2008 by Anonymous*

**Physics**

This is the last time I'm posting this question. So pleas don't get mad. How many atoms of hydrogen are in 220 g of hydrogen peroxide (H2O2)? (220)/(34) then i multiply that # with 6.02E23 then again i multiply that # with 2 to get the number of hydrogen atoms. no luck:-(
*November 22, 2009 by ana*

**physiscs**

A 10g sample of an unknown ionic compound is dissolved, and the solution is treated with enough AgNO3 to precipitate all the chloride ion. If 30.1 g of AgCI are recovered, which of the following compound could be the unknown? A. NaCI B. NaNO3 C.BaCI2 D. Mg CI2 E.KCI Pleas help...
*November 14, 2010 by Jay*

**Algebra1**

The area of a playground is 221 yd2. The width of the playground is 4 yd longer than its length. Find the length and width of the playground. (Hint: Include correct units in your final answer.) (3 points) pleas show me how you got the answer. Thank you:)
*May 2, 2010 by MW*

**English**

"You should just go somewhere. You ruined our relationship, and I don't want to talk to you anymore," Bertha said to Mitchell as he begged her for forgiveness, "But, Bertha, you are the best girl in the world. You make my dreams come true." Bertha ignored his pleas. a)first ...
*March 15, 2014 by Anonymous*

**English**

Can you pleas check if the following sentences are correct? Thank you very much for your help. 1) He has been (or is?) guilt-ridden since the death of his friend. 2) He is unable to take (make?) decisions by himself. 3)News of his suicide brought by the Bradshaws intrudes upon...
*April 29, 2010 by Franco*

**Chemistry 101**

Can someone pleas help I have this assignment and the only question I cannot figure out is to describe the hybridization of all the covalent bonds in oxalic acid? and label those bonds as sigma or pi bonds? I have determine that oxilic acid formula is HO_2CCO_2H and its ...
*June 10, 2009 by Gweedo*

**Algebra**

In an interview of 50 math majors, 12 liked calculus and geometry 18 liked calculus but not algebra 4 liked calculus, algebra and geometry 25 liked calculus 15 liked geometry 10 liked algebra but neither calculus nor geometry 2 liked geometry and algebra but not calculus. Of ...
*January 11, 2010 by Anita*

**phillosophy**

How would you explain how theology and philosophy are different. i have to writ 700 words on this but all i have is what they mean pleas help im stuck. I also have to use Use arguments from at least one Christian source, one Muslim source, and one Jewish source.
*August 27, 2012 by Donna*

**Need help pleas (science) **

. Why are energy transformation important for an ecosystem's stability? . What is the role of photosynthesis I'm making energy "usable" for life? . What is the link between decomposition and photosynthesis? . What is the connection of energy flow through living system and ...
*October 21, 2014 by Sofia (bizz)*

**Calculus**

What is the simplest solution to the Brachistochrone problem and the Tautochrone problem involving calculus? (I know that the cycloid is the solution but I need a simple calculus proof as to why this is the case)
*May 27, 2010 by Sam*

**math**

The hawks won 17 hockey games than they lost. They played 52 games in all and had a 3 ties. how many games did they lose? so 52 ..... games in all won 17......games ties.........3 this is what I do 52 - 17 ------ 35 so they had 35 games left. From here I am stuck DO I ADD 3 ...
*October 8, 2009 by zoe*

**math**

8. In an interview of 50 math majors, 12 liked calculus and geometry 18 liked calculus but not algebra 4 liked calculus, algebra, and geometry 25 liked calculus 15 liked geometry 10 liked algebra but neither calculus nor geometry 2 liked geometry and algebra but not calculus. ...
*November 30, 2009 by poo*

**Chemistry**

Balance the photosynthesis equation: CO2+ H2O-> C6H12O6+ O2 Which i think this is Balanced: 6CO2 + 6H2O + energy-> C6H12O6 + 6O2 ? The question is this: According to the balanced equation __________ moles of carbon dioxide will react with _________moles of water to ...
*February 4, 2012 by Lyssa*

**Chemistry**

Balance the photosynthesis equation: CO2+ H2O-> C6H12O6+ O2 Which i think this is Balanced: 6CO2 + 6H2O + energy-> C6H12O6 + 6O2 ? The question is this: According to the balanced equation __________ moles of carbon dioxide will react with _________moles of water to ...
*February 4, 2012 by Lyssa*

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