Wednesday

September 2, 2015
Total # Posts: 3,330

**Math**

I meant (x+4)(x-4)=33 thanks
*February 16, 2011*

**English**

I really need you to check these sentences please.Thank you. 1) A group of his fans were (not was?) waiting outside his flat. 2) While he was walking across the square, he stopped to sign a record for Mark Chapman. 3)When he returned home, Mark was still there in the square. ...
*February 16, 2011*

**Science**

Thanks a lot pal!
*February 15, 2011*

**Science**

When are the accelerations of two interacting bodies, A and B, equal? And what does the escape velocity of a planet tell us? These two questions look like the easiest of my homework, but I can't find the answers anywhere in my notes! Thanks.
*February 15, 2011*

**Math Correct?**

Any of the 2 angles of a square are supplementary is that true?
*February 15, 2011*

**English**

Thank you! I just a few more doubts on four statements.I hope you can check them. 1) I havent' seen him for two days. If I want to turn it into a wh-question: How many days haven't you seen him for? That's wrong. How long did you last see him? How long is it since ...
*February 15, 2011*

**English**

I forgot to include the following sentences for you to check. By the way, how do you call the sheet where the teachers register each student's school marks. This document is kept by the students themselves and families are expected to sign it once a month. Revision test: ...
*February 15, 2011*

**English**

I urgently need to know if everything is correct. Thank you very much for your help! 1)I use the computer three hours a week on average. I usually use it to play computer games, surf the net or do some school research. 2) I sometimes download and save files from the internet (...
*February 15, 2011*

**math **

so the answer is 676,000,000 sets?
*February 14, 2011*

**math **

Computers manufactured by a certain company have a serial number consisting of a letter of the alphabet followed by a six-digit number. If all the serial numbers of this type have been used, how many sets have already been manufactured?
*February 14, 2011*

**English**

I still have a few doubts about the use of the gerund and infinitive in English. I hope you can have a look at these sentences, too. 1)I cannot resist drinking a glass of water. 2) He missed being tested. He missed being struck by the ball. 3) She caused me to sign the ...
*February 14, 2011*

**English**

I forgot to include the following statements. Thank you very much for your help! 1) A camp instructor was thrown out of his raft and hit his head on the rock. 2) Though he lost consciousness, two of his students called the emergency services. 3) An ambulance was immediately ...
*February 14, 2011*

**English**

As I'm not a native speaker, I would like to know how to express my sentences in American English. Thank you very much for your help. 1)I sort my rubbish (trash) into four separate bins which are located in a kitchen cupboard under the sink: one is for plastic, one is for ...
*February 14, 2011*

**English**

Can you please check these sentences which I reworded? Thank you.(Check the word choice please) 1)I sort my rubbish (trash) into four separate bins which are located in a kitchen cupboard under the sink: one is for plastic, one is for paper; one is for food waste; and one is ...
*February 14, 2011*

**English**

Can you please tell me if the word choice is correct? Thank you very much. 1)The play opens with the news that Macbeth has succeeded in defending Scotland from an invasion by the Norwegians. 2) While returning from his victorious battle, Macbeth and his friend Banquo meet the...
*February 14, 2011*

**English**

I forgot to include these last statements. Thank you. 1)Lady Macbeth gives the king’s guards a lot to drink and in the middle of the night Macbeth kills Duncan with the knife of one of the soldiers. 2) The next morning the murder is discovered and the blame is put on the ...
*February 13, 2011*

**English**

I still have some doubts about a summary I made of Macbeth's plot. I hope you can have a look at it, too. I included various alternatives. Please, tell me if they are all possible. 1)The play opens with the news that Macbeth has succeeded in defending Scotland from an ...
*February 13, 2011*

**English**

I really need you to re-word these sentences as I don't know much about vocabulary on the environment.Thank you very much! 1)I‘m quite environment-friendly. I have three containers at home to sort my rubbish. One is for paper, one for plastic and one for moist (?). 2...
*February 13, 2011*

**English**

Can you recommend me internet sites where I can both listen to and read the news in English? I need to practise the vocabulary used when reporting news, especially that concerning car accidents. Here are some more sentences I'm not sure of. 1) John Lennon's song "...
*February 13, 2011*

**calculus differential equation**

thanks Bob much appreciated. Do I then take the integral of the last line? And is the left hand side 1/3y^3 (from y^)? I do not know how this fits together. Thanks for any further help
*February 12, 2011*

**English**

I forgot to include the following statements on car accidents. Thank you very much. I chose the name "Mike" as suggested to me by Jiskha. Can you help me check these school rules in case of an evacuation? Thank you. 1) I've never had a car accident myself but I ...
*February 12, 2011*

**English**

Can you please help me check these school rules in case of an evacuation? 1) During an evacuation you have to (must?) 2) stay calm 3) queue with the respective openline and closeline 4) go calmly to the nearest emergency door 5)if you need, go down the stairs, always quietly 6...
*February 12, 2011*

**Physics 2 Charges what is the magnitude at point P**

Two charges, Q1= 3.20 microCoulombs, and Q2=5.90 microCoulombs, are located at points (0,-2.00cm) and (0,+2.00cm. What is the magnitude of the electric field at point P, located at (5.00cm,0), due to Q1 alone?
*February 11, 2011*

**math**

find general solution in implicit form of differential equation dy/dx= 2(e^x-e^-x)/y^2(e^x+e^-x)^4 (y>0)
*February 11, 2011*

**geometry/help**

Is it possible for the geometric mean and the arithmetic meam of two numbers,a and b, to be the same? explain. can you help me answer this question? thank you
*February 10, 2011*

**Math**

what would be the slope is it's 1/-8?
*February 10, 2011*

**Math**

I thought you had to do 2 - 6/ -4 - -4 = -4/0 = -4
*February 10, 2011*

**Math**

is the slope of J(-4,6), K(-4,2) -4?
*February 10, 2011*

**geometry**

Is it possible for the geometric mean and the arithmetic meam of two numbers,a and b, to be the same? explain. can you help me answer this question? thank you
*February 10, 2011*

**bus303**

List one external factor that you feel has a powerful influence on your company's HRM function and explain why.
*February 10, 2011*

**spanish/help please**

Can you help me write these numbers in spanish? -20,030,000 -14,559 -67,900,008 -200,700,100 1,432,626
*February 9, 2011*

**Spanish**

Does anyone here know Spanish? I am trying to divide the word "profesora" into morfemas. At first I thought it might be prfesor-a, but I don't think that is correct? Is it possible that it is just one simple word? Can anyone help with this?
*February 9, 2011*

**Statistics- Need someone to check **

Ok so i don't know how i got that answer i think i typed in a wrong formula or read something wrong. I got .8926 for the first one. And the second one i don't know what i am suppost to use from the first answer to get that. Can someone help me. It is known that about ...
*February 9, 2011*

**Algebra**

Tom drove to Easton from home at 50 mph. His return trip took 30 minutes longer because he ran into traffic and could only drive 45mph. How many miles is it from Tom's home to Easton? Express answer as a decimal.
*February 8, 2011*

**algebra**

Given a cube with volume 30 cubic centimeters, find the number of centimeters in the length of an edge.
*February 8, 2011*

**math**

What's the minimum. length of the arc on the cicumference of the earth,where a curvature of the horizon is appearent? OR---What's the max.length of cord,drawn on the cicumference of the earth,where length of the cord appears same as arc? Follow up 2nd question---At ...
*February 6, 2011*

**calculus**

Locate the position of Sun,using calculus---using differential euation on sign curve of Sun's path.
*February 6, 2011*

**Geometry**

what are the bases of a trapezoid if the height is 15 meters and the midsegment is 32 meters
*February 3, 2011*

**Math**

how many non-congruent triangles with only integers side lengths have a perimeter of 15 units
*February 2, 2011*

**physics**

lava ball is shot straight up at 28m/s what is speed after 3 seconds
*February 1, 2011*

**Math**

Algebra 2: How do I factor this expression? 4x^4-6x^2+2
*February 1, 2011*

**Basic Math**

Ah... The light just went on... 24!
*January 31, 2011*

**Basic Math**

But the question asks "how many nights will it be before they are both off again" so would the answer be... Bill 6 and Sue 8? Thanks.
*January 31, 2011*

**Basic Math**

I think the LCM is 6...? Wouldn't it be that they will never have the same day off again because one has a day off every 6 and the other 8th day?
*January 31, 2011*

**Basic Math**

Bill and Sue both work at night. Bill has every sixth night off and Sue has every eighth night off. If they are both off tonight, how many nights will it be before they are both off again?
*January 31, 2011*

**Math (Algebra 2)**

Factoring by Using a Quadratic Form Problem: x^4 + 8x^2 - 20 What I have so far: (x^2)^2 + 8(x^2) - 20 a^2 + 8a - 20 For some reason my textbook says to substitute the (x^2) with (a) as you can see in the las step. The next step after that is factoring [a^2 + 8a - 20].
*January 31, 2011*

**math**

45/72 = 0.625 Divide 45 by 72 on a calculator.
*January 31, 2011*

**math**

4/9
*January 31, 2011*

**Math**

(Factoring a sum or difference of cubes) and (solving a polynomial equation). 2x^3+2=0
*January 31, 2011*

**eee**

the market mix
*January 31, 2011*

**social studies**

A study of the causes of the American Revolution of 1776, the French Revolution of 1789, and the Russian Revolution of 1917 best supports the generalization that revolution is most likely to occur when 1. those in power are resistant to change 2. a society has a lower standard...
*January 31, 2011*

**Trigonometry**

Suppose the angle formed by the line 14y = 23x and the positive x-axis is è. Find the tangent of è.
*January 31, 2011*

**market**

Tesla, a new firm that makes an electric sports car, estimating how many competitors will make electric vehicles and what kinds they will make, is:
*January 30, 2011*

**math**

write an equation that represents the problem.The automatic tennis server holds 110 balls that shoot out one at a time.Andres 3 friends took turns hitting 27 balls each.Andre hit the remaining balls.How many balls did Andre hit?
*January 27, 2011*

**English**

How does the quotation -A lie told often enough becomes the truth- by Lenin relate to A Street Car Named Desire by Tennessee Williams and Death of a Salesman by Arthur Miller
*January 27, 2011*

**English**

How does this quotation - Man's best possession is a sympathetic wife - by Euripides (484 BC - 406 BC), Antigone relate to A Street Car Named Desire by Tennessee Williams and Death of a Salesman by Arthur Miller
*January 27, 2011*

**Math**

For each of the following decimal numbers, give the place value of the underlined digit. 97,998 (the line is under the 7) Thank you!
*January 24, 2011*

**College Chemistry**

What volume of CH4 at 0 °C and 1.20 atm contains the same number of molecules as 0.16 L of N2 measured at 23 °C and 1.50 atm?
*January 23, 2011*

**chemistry**

what mass of steam intially at 130 degree celcius is needed to warm 200 grams of water in a 100 gram container from 20 to 50 degree celcius
*January 20, 2011*

**College Physics**

Starting from rest, the car is going 39 ft/s (27 mi/h) at the end of 5.0 s. What is the car's average acceleration in ft/s2
*January 19, 2011*

**math**

Use 3.14 for pi and round to the nearest hndredth. If r=7m, then d= ?, and c= ?
*January 18, 2011*

**math**

determine the sum of the following geometric series a. -1/32+1/16-...+256 b. 50 over sigma 8(.5)^n-2
*January 18, 2011*

**math**

determine the sum of the following geometric series a. -1/32+1/16-...+256 b. 50 over sigma 8(.5)^n-2
*January 18, 2011*

**math**

the following table gives the amount of money john made selling ice cream treats during the local exhibition. determine the mean and standard deviation of john's income for these 11 days. round answer to nearest cent. day: 10 11 12 13 14 15 16 17 18 19 20 income: 65 56 75 ...
*January 18, 2011*

**Math**

If find RX = 2y + 2x, TX = 3y - 1, and SU = 28, FIND THE VALUES OF X AND Y
*January 17, 2011*

**Math**

How do you explain to 6 year old what a rectangular coordinate system is and why it is important in math. What information is needed to locate a point in this system? And how does this relate to mapping and finding a point on a map.
*January 16, 2011*

**chemistry**

x = 2.10 e^-5 = [Cl-]
*January 16, 2011*

**geography**

In three paragraphs choose one county in Europe you could live in. Tell why
*January 15, 2011*

**math**

sparky weighs 3/4 of her weight, plus 3/4 a pound. how much does she weigh?
*January 13, 2011*

**physics**

the frequency of yellow lights is 5.00 x 10^14 Hz. if it travels through space (where v= 3.00 x 10^8m/s) find the wavelength of this light.
*January 13, 2011*

**Micreconomics**

Using a supply and demand diagram, illustrate the impact of each of the following on price and quanity demanded: a. Improvements in transportation lower the cost of importing oil into the United States of the 1960. b. After the 1973 war, oil producers cut oil production ...
*January 12, 2011*

**math **

HEYY CAN Y SPARE THE EQUATIONS TWO
*January 12, 2011*

**biology**

Can you help me find an everyday object that has a similar function as : 1-Golgi Bodies an example 2-Lysosome an example kitchen garberator 3- peroximes example a gym 4-Vesicules/vacuoles an example water bottle 5-Cytoskeleton an example 6-Microvilli an example 7- Cilia an ...
*January 12, 2011*

**Biology/help please**

how about the rest any help or ideas
*January 12, 2011*

**Biology/help please**

Can you help me find an everyday object that has a similar function as : 1-Golgi Bodies an example 2-Lysosome an example kitchen garberator 3- peroximes example a gym 4-Vesicules/vacuoles an example water bottle 5-Cytoskeleton an example 6-Microvilli an example Can you help me...
*January 12, 2011*

**Anatomy and Physiology**

IS this right thank you! Ovaries and testes are considered components of which system? I got C reproductive system endocrine system both A and B none of the above
*January 12, 2011*

**Dressmaking**

But like where am I supposed to find this stuff out? They just gave me online exams and no information whatsoever about these things.
*January 12, 2011*

**Dressmaking**

They threw me in this class & I know nothing about sewing..im a guy lol. please help me? Ms. Troy would like you to make a copy of an outfit that she owns and really likes—a sleeveless dress with a short-sleeve jacket. She has selected a lilac linen fabric that comes in ...
*January 12, 2011*

**Math**

Thank you, I understood your first post. Good luck Will.
*January 12, 2011*

**Math**

If the lengths of two bases of a trapezoid are 10m and 16m respectively, then what is the length of the median
*January 12, 2011*

**Russia Government**

I was checking to see if my question had been answered on steps in doing a report on the Russia Government.
*January 12, 2011*

**Russia Government**

Need steps in doing a report on Russia government.
*January 12, 2011*

**government**

I am 7th grade. My report is on Russia government. How do you do a report on the Russia Gov't. I need steps to take in setting up a report on this subject.
*January 11, 2011*

**physics**

The following wave function represents a travelling wave: y = 3.45 / [6.35 + (6.35x−8.30 t )2] where y and x are in cm, and t is in seconds. a). What is the maximum displacement of the wave at t = 7.50 s ? b). what is the wave velocity? please explain more
*January 10, 2011*

**physics**

The following wave function represents a travelling wave: y = 3.45 / [6.35 + (6.35x−8.30 t )2] where y and x are in cm, and t is in seconds.a) What is the maximum displacement of the wave at t = 7.50 s ? b) what is the velocity.
*January 10, 2011*

**Physics**

The 636 N weight held by two cables. The left-hand cable had tension 840 N and makes an angle of θ with the wall. The right-hand cable had tension 890 N and makes an angle of θ1 with the ceiling. a) What is the angle θ1 which the right-hand cable makes with ...
*January 9, 2011*

**Physics**

A player strikes a hockey puck giving it a velocity of 47.673 m/s. The puck slides across the ice for 0.175 s after which time its velocity is 46.473 m/s. The acceleration of gravity is 9.8 m/s2 . The mass of the puck is 185 g. If the puck strikes the goalie’s pads and ...
*January 9, 2011*

**Physics**

The 636 N weight held by two cables. The left-hand cable had tension 840 N and makes an angle of θ with the wall. The right-hand cable had tension 890 N and makes an angle of θ1 with the ceiling. a) What is the angle θ1 which the right-hand cable makes with ...
*January 9, 2011*

**Physics**

The average speed of a Nitrogen molecule in air is about 858 m/s, and its mass is about 4.68 × 10−26 kg. If it takes 2.6 × 10−13 s for a nitrogen molecule to hit a wall and rebound with the same speed but in the opposite direc- tion, what is the ...
*January 8, 2011*

**Physics**

The average speed of a Nitrogen molecule in air is about 858 m/s, and its mass is about 4.68 × 10−26 kg. If it takes 2.6 × 10−13 s for a nitrogen molecule to hit a wall and rebound with the same speed but in the opposite direc- tion, what is the ...
*January 8, 2011*

**English**

How do any of the quotes below relate to the play A Street Car Named Desire by Tennessee Williams A good reputation is more valuable than money. Publilius Syrus (~100 BC), Maxims For all their strength, men were sometimes like little children. Lawana Blackwell, The Dowry of ...
*January 8, 2011*

**smith**

tom can mow a lawn in 4 hours. perry can mow the same lawn in 5 hours. how long for them to mow the lawn together?
*January 6, 2011*

**spanis PLEASE PLEASE HELP !**

Your friend asks you questions about everything he sees. Answer his questions as indicated. example: Es la casa de Manolo? Si, es su casa ES la casa de susana? No, no es su casa. 1) Son los hermanos de Anita Si, son sus hermanos 2)Son los padres de Felipe? No, no son sus ...
*January 5, 2011*

**spanish/help please**

Your friend asks you questions about everything he sees. Answer his questions as indicated. example: Es la casa de Manolo? Si, es su casa ES la casa de susana? No, no es su casa. 1) Son los hermanos de Anita Si, son sus hermanos 2)Son los padres de Felipe? No, no son sus ...
*January 5, 2011*

**algebra **

solve and give two answers X^2=44
*January 5, 2011*

**history**

How did Mikhail Gorbachev’s policies contribute to the end of the Cold War?
*January 4, 2011*

**Math**

Find an algebraic expression for f' f(x)= 2e^x+ pi f(x)=e^5-4e^x f(x)=e^x+x^e+e f(x)= e^pi +pi^x+ x^pi I didn't understand these at all
*January 3, 2011*

**math**

What I have found is that counters are inch diameter circles children use to visual help count so your child has to draw circles in the boxes that correspond to the number if it says 3 the your child makes 3 circles one in each box
*January 3, 2011*

**french**

what does Est-ce que les lunettes de soleil vont bien à dylan hayes mean???
*December 29, 2010*

**PHYSICS**

ummmm dude i did that it came out like . something . like what do you mean convert N?. please explain thankyou
*December 20, 2010*