Friday

April 18, 2014

April 18, 2014

Post a New Question | Current Questions

**1st grade/english**

Four: Declarative sentences tell you something. Interrogative asks a question. Exclamatory shows a strong feeling. Imperative tells someone to do something. (From the link bobpursley gave, thanks bob. Just summing it up for our first grader.)
*Wednesday, May 26, 2010 at 11:27pm*

**7TH GRADE**

Several students in class were asked to reach into a bag and pull out cubes. the number of cubes each person grabbed. what are 1st and 3rd quartiles of this data
*Monday, May 3, 2010 at 5:52pm*

**1st grade**

Sam sees a figure The figure has one face The figure is curved What figure(shape) does Sam see?
*Monday, April 26, 2010 at 11:15pm*

**6th grade science (physics)**

explain and describe Newton's 1st law and as it applies to forces, balanced forces and unbalanced forces
*Sunday, April 18, 2010 at 12:28pm*

**6th grade science (physics)**

explain Newton's 1st law in relation to forces, balanced forces and unbalanced forces
*Sunday, April 18, 2010 at 12:24pm*

**English**

Hello! On Wednesday I am teaching English as a foreign language - 1st grade of high school) The topic: animal proverbs (I need to teach them these 18 animal proverbs) There are 8 learners in the class. I have 18 pictures of these proverbs and of course written explanations. ...
*Friday, April 16, 2010 at 12:31pm*

**1st grade math**

ms. sue is rite but do u want to know different ways like five nickles or two dimes and one nickle or twenty-five pennys or evan four nickles and five pennys?
*Monday, April 12, 2010 at 5:22pm*

**1st grade**

5 nickels 2dimes, one nickel a quarter 25 pennies three nickels, one dime.
*Thursday, April 8, 2010 at 5:41pm*

**1st grade math**

25 cents 25 (with the cent sign -- a c with a line through it) $0.25 a quarter 25/100
*Thursday, April 8, 2010 at 5:01pm*

**1st grade**

if yo have three words friend, things & might which word has the long i sound and which word can you get by adding a sound to in? a tin,b hid c find
*Monday, March 29, 2010 at 7:58pm*

**1st grade**

Hello there, A map can help you by showing you the exact location of something. By having road names, rivers, mountians and more! I hope this helped! -Kelly
*Wednesday, January 27, 2010 at 4:20pm*

**1st grade english**

A simple sentence needs a subject and a verb. In your sentence "tidy" will be an adjective, so you need a noun it will describe. I have a tidy desk. (I have put everything away. My desk is neat, in other words.) Sra
*Tuesday, January 26, 2010 at 7:50pm*

**1st grade math**

If you are doing it for addition/subtraction it could be: 6 + ? = 9 ? + 6 = 9 9 - 6 = ? 9 - ? = 6 4 + ? = 9 ? + 4 = 9 9 - 4 = ? 9 - ? = 4 For multiplication/division, it could be: 4 * 9 = 36 9 * 4 = 36 36/4 = 9 36/9 = 4 I hope this helps. 6 * 6 = 36 36/6 = 6
*Wednesday, January 20, 2010 at 12:48pm*

**Math 157**

Based on meteorological records, the probability it will snow in a certain town on January 1st is 0.480. Find the probability that in a given year it will not snow on January 1st in that town? Is the answer 0.520 ?
*Sunday, January 17, 2010 at 6:50pm*

**12th grade English**

Ok, i suggest making an outline for this. Outline I. Introduction II. Body Paragraphs A. 1st B. 2nd C. 3rd III. Conclusion Decide how you want to do your body paragraphs by putting examples of characters and their actions
*Saturday, December 26, 2009 at 3:39pm*

**NOT 1st grade **

Please don't try to fool us into simply giving you the answers. We don't appreciate lying or misinformation in this forum. We'll be glad to comment on YOUR answers.
*Tuesday, December 15, 2009 at 5:51pm*

**math 6 grade**

It's multiplying by four each time. So.. 1st Month: 2 2nd Month: 8 3rd Month: 32 4th Month: 128 5th Month: 512 6th Month: 2048
*Wednesday, December 9, 2009 at 6:30pm*

**1st grade**

Let me share with you with. For 1st grader, Dr. Suess story books are really good. Take one book from school or public library or you can buy one. You need to first get the child with you for reading. You may do that by giving him or her favorite things like toys or chocolates...
*Saturday, November 21, 2009 at 8:41am*

**1st grade**

Most maps have a small corner with places listed, and locations on the Map given, as in A5. You look on the map edges, A will be on one side, then on another side 5. You look where they cross, area A5.
*Tuesday, November 10, 2009 at 5:30pm*

**7th grade**

WITH A(0,2),B(6,2)AND C(4,4) APPLY THE RULE (1.5X,1.5Y) TO THE VERTICLES OF TRIANGLE ABC TO GET TRIANGLE PQR. COMPARE THE CORRESPONDING MEASUREMENTS(SIDE LENGHTS,PERIMETER,AREA, AND ANGLE MEASURES) OF THE TWO TRIANGLES? THIS IS THE 1ST QUESTION OF 5 I HAVE TO DO, AND I DON'...
*Thursday, October 22, 2009 at 7:54am*

**1st grade**

No it is divided cry.One way to count syllables is toho;d your hand under your chin. Everytime your chin goes down is a syllable.
*Wednesday, October 21, 2009 at 11:57pm*

**math**

In each case, consider what you know about the distribution and then explain why you would expect it to be or not to be normally distributed. a. The lifetimes of a set of batteries manufactured by a company in your town. b. The list of guesses of the number of marbles in a ...
*Tuesday, September 29, 2009 at 10:37pm*

**1st grade Reading**

Read to her and with her. Show that you enjoy reading and help her to enjoy it. Praise accurate reading responses. However, if there is a specific problem, you might seek professional help. Start at the school. I hope this helps. Thanks for asking.
*Friday, September 25, 2009 at 11:35am*

**11th grade**

if a container starts with 60 liters and the 1st hour it has half the liters and the 2nd hour it has 1/3, how long before there are 10 liters?
*Thursday, September 24, 2009 at 6:37pm*

**3rd grade**

grade 1 215 grade 2 186 grade 3 259 how many more were sold bt grade 3 than by grade 2? 73 answer why aren't any of the tens regrouped to subtract the ones?
*Monday, September 14, 2009 at 4:11pm*

**1st grade**

Who will clean the room? You or your mom? If your mom will clean the room, then the sentences are correct. If you are to clean the room, then the second sentence needs to be phrased/punctuated differently.
*Tuesday, June 16, 2009 at 10:35pm*

**1st grade**

Yes, it is. One correction -- Mr. Olson's fence. You need the apostrophe there because Mr. Olson owns the fence.
*Tuesday, June 16, 2009 at 9:32pm*

**1st grade**

The first is called a run-on because it's really two sentences that are run together. This is correct: I can't play now. Can you come back later? The second sentence is fine, but put the period before the ending quotation marks, not after them.
*Monday, June 15, 2009 at 6:48pm*

**1st grade**

If you are looking for correct punctuation, this will help. Put what is being said into quotation marks. Put a question mark after the question. "What is your name?" asked Anita.
*Sunday, June 7, 2009 at 4:10pm*

**1st grade**

Did the boys swim in the lake? or Did those boys swim in the lake? is that correct
*Monday, May 18, 2009 at 8:24pm*

**1st grade**

is this a sentence the dog rolled in a mud puddle the dog is rolling in a mud puddle
*Tuesday, April 21, 2009 at 9:44pm*

**math 1st grade can you check the answers**

can you check this set of answer {10,14,18,22,26} mean=18 median=18 mode =no mode
*Tuesday, March 24, 2009 at 6:04pm*

**1st grade math**

can you check this set of answer as well{10,14,18,22,26} mean=18 median=18 mode =no mode
*Tuesday, March 24, 2009 at 5:58pm*

**1st grade**

Remember that a vertex can be the point opposite the base. So what is a triangular pyramid (4 sides) which is sitting on its point? 4 sides, 3 vertexes
*Friday, March 13, 2009 at 9:01pm*

**Math, definitely not "1st grade"**

assistance needed Please type your subject in the School Subject box. Any other words are likely to delay responses from a teacher who knows that subject well.
*Friday, March 13, 2009 at 8:33pm*

**1st grade**

|||| .. is correct. the | is used as a ten. the . is used as a one. They are base ten. Blocks are used for this at school. They are also called longs (|) and shorts (.).
*Tuesday, February 24, 2009 at 8:16pm*

**1st grade social studies**

white oak tag? An overly presumptuous name for poster board. Good poster board is make of oak chips (hardwood). White refers to the bleaching process on the wood fibers.
*Monday, February 16, 2009 at 9:13am*

**1st grade social studies**

the revolutionary war,my son has a project due on 2/23/09 about the revolutionary war.what are white oak tags,how do i go about doing this project.
*Monday, February 16, 2009 at 8:50am*

**1st grade**

What are you talking about i am an 8th grader and i don't know what the heck you are talking about and i am in honers.
*Thursday, December 4, 2008 at 12:02am*

**1st grade**

Places and shelters: houses tents apartments stores churches schools hospitals libraries Transportation: cars buses trains ships bikes motorcycles trucks planes helicopters horses
*Monday, December 1, 2008 at 5:04pm*

**AED**

Choose a grade level and a scientific concept appropriate for that level. • Plan a science experiment to explore this concept. In your paper, address the following points: o List the equipment and materials to be included in the science kit. o Explain what safety ...
*Saturday, November 22, 2008 at 5:53pm*

**1st grade**

(homonyms are different from homophones in that homonyms have the same spelling, whereas homophones do not)
*Monday, November 17, 2008 at 7:30pm*

**3rd grade 1st year spanish**

y = and ya = already, yet yanqui = Yankee yogurt = yogurt k karate = karate kilogramo = kilogram kilómetro = kilometer Sra
*Sunday, November 16, 2008 at 11:12pm*

**Math assistance needed**

Assistance needed; this is definitely not 1st grade!
*Tuesday, October 28, 2008 at 8:34pm*

**4th grade**

L0L!!! U LIL GURL IL TEACH U 3XAMPLE: x 4 4/16 <---1ST H0W MANY - - - TIMEZ DUZ 4 16 - 16 G0E IN2 6? ------- 0 G0T ET? L0L IM IN DHA 5TH GRADE... ITZ PRETTY C00L 2 B TALKIN 2 A 4TH GRADA WEL NEWAYZ WEHN U DO AREA N PERIMETER REMEMBER: A=(LxW)A ND P=(L+W) 0K LIL GURL L0LZ
*Thursday, October 16, 2008 at 9:36pm*

**Math**

1st plane flew at 600km/h 15 minutes later..... 2nd plane flew at 700km/h how long did it take the 2nd plane to overtake the 1st plane? for my answre, I got 1.75h Is this correct? The book said it was 1.5 Thanks
*Tuesday, September 30, 2008 at 11:00pm*

**math 7th grade**

what is the change in temp when the thermometer reading moves from the 1st temp to the 2nd temp. 20degree F to -10 degress F.Please explain to me how you get the answer for future problems.
*Monday, September 22, 2008 at 8:50pm*

**grade 5 math**

the grade 5 class decided to collect cans of food to donate to the food bank .After the 1st week ,they had collected 8 cans . The next week they collected 11 more . By the 3 rd week they had 31 cans Following this pattern how long will it take for them to reach there goal of ...
*Sunday, May 4, 2008 at 9:47pm*

**School Holcaust Unit**

Okay, i know that this is a sad subject, but i'm getting confused. Was the Nurember Law written on August 20th, or September 1st 1935? Or did the meeting start on August 20th 1935 and ended September 1st 1935?? Any help would be nice...thanks.
*Tuesday, January 29, 2008 at 7:49pm*

**1ST GRADE GRAMMER**

meaning (one of 2 main parts of a sentence the other being the subject) PREDICATE/ tells somthing about the subject example (giving the apple to the horse) is your Predicate. another example of Predicate in brackets Judy (ran with her dog)
*Tuesday, January 15, 2008 at 6:51pm*

**Can someone check my answer please**

Can someone check this for me? Suppose that the number of cars, C, on 1st Avenue in a city over a period of time t, in months, is graphed on a rectangular coordinate system where time is on the horizontal axis. Suppose that the number of cars driven on 1st Avenue can be ...
*Saturday, December 15, 2007 at 8:32pm*

**SCI 275**

ok thank you. I had the 1st two not the last one. With the 1st two i am having a hard time finding info. and using it on what I need.I will check out the last one.
*Saturday, November 10, 2007 at 7:12pm*

**1st grade homework question**

can the earths minerals be all used up or do they regrow?? That question has been answered just a few posts below. If you can't find it, please repost.
*Monday, December 11, 2006 at 7:16pm*

**Proofread -- English**

Yes, that is correct. I am currently taking BUS and CJ courses, but on the 1st of January, my focus will be entirely to CJ. Can someone proofread this sentence for me? I'm not sure I understand the question. If the sentence is to be proofed, I don't know what I am ...
*Tuesday, September 12, 2006 at 5:34pm*

**SAT math**

There are 6 open seats. _ _ _ _ _ _ The first and last seat are taken by the two parents. -For the 1st seat, either parent can sit on the 1st seat -> 2 ways -Therefore, the last seat, the remaining parent sits on the last seat. -> 1 way The 4 middle seats are seated by ...
*Saturday, April 5, 2014 at 11:34pm*

**MATH**

so 1/4 in fourth and 1/4 in fifth grade 1 = 2/5 * 400 = 2 * 80 = 160 grade 2 = 2/8 * 400 = 2 * 50 = 100 grade 3 = 1/10 *400 = 1 * 40 = 40 grade 4 = 1/8 * 400 = 1 * 50 = 100 grade 5 = 1/8 * 400 = 1 * 50 = 100 grade 2 is 2/8 which is 1/4 by the way, sme as grades 4 and 5
*Monday, March 24, 2014 at 3:23pm*

**MATH**

there are 400 students at smith Elementary school 1/4 of the students are in fourth and fifth grade, 1/10 of the students are in grade 3, 2/8 are in second grade and 2/5 are in first grade . How many kids are in each grade? (4th and 5th have an equal amount)
*Monday, March 24, 2014 at 3:14pm*

**Math - PreCalc (12th Grade)**

spread = 5-2 = 3 if cut into n pieces, each base = 3/n endpoint of 1st rectangle = 2 + 3/n endpoint of 2nd rectangle = 2 + 2(3/n) ... endpoint of kth rectangle = 2 + k(3/n) = 2 + 3k/n f(2+3k/n) = 2(2 + 3k/n) + 1 = 5 +6k/2 I see you have two other questions above that follow ...
*Friday, March 21, 2014 at 11:40am*

**technology**

Need help on the question below. I have read all about all 3 laws but still don't understand if this would be 1st or 2nd law. "A ball is rolling in a straight line on a hardwood floor. A cat hits it from the right, so the ball rolls left. Which Law of Motion is this? ...
*Friday, March 14, 2014 at 6:58pm*

**Math**

cost of 1st machine = 250000 + 30000( 1 - 1.085^-10)/.085 - 75000(1.085)^-10 = 413,669.04 cost of 2nd machine = 400000 + 225000(1.085)^-5 - 175000(1.085)^-10 = 472,235.27 1st is cheaper, I used the present time as my "focal point in time" check my arithmetic
*Friday, March 14, 2014 at 10:50am*

**math(QUESTION)**

Suzan has a 69 as her grade in a class. If she does a quiz worth 9% of her grade what will her grade be?
*Friday, March 7, 2014 at 11:13am*

**Physics- Newton's 1st and 2nd Law**

*Monday, February 24, 2014 at 10:21am*

**Math**

and the 1st one.
*Wednesday, February 19, 2014 at 3:45pm*

**math**

In 2008 (Leap year) KIT Hospital had 150 licensed beds for adults and children from January 1st through June 30th. From July 1st through December 31, licensed beds increased to 175. During the first half of the year there were 23114 inpatient service days. During the second ...
*Monday, December 16, 2013 at 5:46am*

**Math plz help**

In the town of Mayfield, the precipitation totals are set to zero at the beginning of each year. Because of a drought early in the year, the totals on March 31st were below normal at -27 inches. The next three months were very rainy, and by July 1st the precipitation totals ...
*Sunday, December 15, 2013 at 7:17pm*

**Math - Linear Algebra**

1st one times 2 2x - 8y - 6z = -36 2nd -2x + 8y + 7z= 41 add them z = 5 sub into 1st x - 4y - 15 = -18 x - 4y = -3 x = 4y - 3 let y = 0 , x = -3, z = 5 ---> point (0,-3,5) let y = 2 , x = 5, z = 5 ---> point (2,5,5) so direction of line of intersection is (2, 8, 0) using...
*Sunday, December 8, 2013 at 7:54pm*

**Calculus**

at t=0, let the 1st boat be at (0,0) The 2nd boat is at (-c,c) So, at time t, the 1st boat is at (0,6t) and the 2nd boat is at (-c+5t,c) The distance is thus d^2 = (-c+5t)^2 + (c-6t)^2 = c^2 - 10ct + 25t^2 + c^2 - 12ct + 36t^2 = 2c^2 - 22ct + 51t^2 2d dd/dt = -22c + 102t dd/dt...
*Tuesday, December 3, 2013 at 8:45pm*

**5th grade math**

In the fourth grade class at Baker Elementary, 9 students are left-handed. The fifth grade has 7 left-handed students and the sixth grade has 6. The number of students in the fourth grade is 3 times the number of left-handed students in the class. The sixth grade has 3 more ...
*Sunday, December 1, 2013 at 8:35pm*

**Math**

Had that first equation not mysteriously changed we would have; 1st times 3 ---> 12x - 9y = 15 2nd times 4 ---> 12 - 20y = 28 subtract: 11y = -13 y = -13/11 into 1st: 4x -3(-13/11) = 5 4x = 5 - 39/11 = 16/11 x = 4/11
*Wednesday, November 27, 2013 at 10:05pm*

**math**

charge for first 25 songs --- x dollars per song charge for songs over 25 ---- y dollars per song 25x + 3y = 34.8 25x + 5y = 40.7 subtract the 1st from the 2nd 2y = 5.9 y = $2.95 sub into the 1st 25x + 3(2.95) = 34.8 25x = 25.95 x = $1.04
*Tuesday, November 12, 2013 at 10:32pm*

**Math**

prob of getting one black from 1st box = 3/4 prob of getting one black from 2nd box = 6/8 = 3/4 mmmmmhhhh? prob(2 blacks from 1st) = (3/4)(2/3) = 1/2 prob(2 blacks from 2nd) = (6/8)(5/7) = 15/28 mmmh again!
*Tuesday, November 12, 2013 at 11:27am*

**Personal Finance**

On December 1, 2004 a $1,000.00 bond, paying 6% interest on January 1st and July 1st of each year is purchased for $950.00. The bond is sold on December 5, 2005 for $980.00. What would be the total monetary return including both interest and capital gains from holding this ...
*Sunday, November 10, 2013 at 6:06pm*

**Physics**

did you get the 1st one.. plzz help anyone? plz
*Tuesday, October 15, 2013 at 3:19pm*

**english**

1st time
*Sunday, October 13, 2013 at 8:35pm*

**Grammar Advisor**

I just cannot figure out if these answers are correct or not. Can you please help me? 78. If the sound system hadn’t failed, last night’s show would have been better. This is a correct sentence using the 1st conditional form. x This is a correct sentence using the ...
*Wednesday, September 25, 2013 at 10:13pm*

**dma 040**

42 inch cut into 3 pieces. Piece 2 is twice as long as 1st and 3rd piece. Piece 3 is three times as long as piece 1. How long are the pieces 1st board 2nd board 3rd board
*Sunday, September 15, 2013 at 1:11am*

**Maths**

#1,2 ok #3. 1st two only
*Thursday, August 29, 2013 at 6:24pm*

**Physics !!**

1a. d1 = 0.5g*t^2 = 4.9*2^2 = 19.6 m. = Distance fallen by the 1st stone after 2 s. V1^2 = Vo1^2 + 2g*d V1^2 = 0 + 19.6*19.6 = 384.16 V1 = 19.6 m/s = Velocity of 1st stone after 2 s. d1 = d2-19.6 m. Vo1*t + 0.5g*t^2 = Vo2*t+0.5t^2-19.6 Vo1*t-Vo2*t+4.9t^2-4.9t^2 = -19.6 19.6t-...
*Monday, August 26, 2013 at 8:56pm*

**Math**

strange question Are you saying his annual payment is $2500 + the interest? If so, then ... Balance now = $50,000 interest at end of 1st year = $7000 payment = 2500 + 7000 = $9500 Balance at end of 1st year = $47,500 interest at end of 2nd year = $6,650 payment at end of 2nd ...
*Thursday, August 8, 2013 at 10:19am*

**Math**

1st times 4 --> 12x + 16y = 72 2nd as is ----> 12x + 7y = 4 subtract them: 9y = 68 y = 68/9 back in 1st: 3x + 4(68/9) = 18 3x = 18 - 272/9 = -110/9 x = -110/27
*Thursday, August 8, 2013 at 8:04am*

**BTech, Mechanical**

For the 1st ball, the time of the upward motion v=v₀-gt v=0 0=v₀-gt t= v₀/g =18/9.8=1.83 s. The height of the 1st ball h= v₀t-gt²/2=18•1.83 - 9.8•(1.83)²/2= =16.53 m The time of the 1st ball downward motion before the 2nd ball begins...
*Monday, July 22, 2013 at 1:44pm*

**Psychology**

My answer was correct the 1st time it was A . it is not C
*Monday, June 24, 2013 at 1:17pm*

**conditional sentence**

1. If the sound system hadn't failed,last night's show would have been better a. this is a correct sentence using the 1st conditional form b. this is correct sentence using the 2nd conditional form C. this is a correct sentence using the 3rd conditional form answer A 2...
*Wednesday, June 12, 2013 at 6:04am*

**English Pls Ms. Sue help me by checking my work**

20. Original: There are ten women and 4 men in my chemistry class. Correct before: There are 10 women and 4 men in my Chemistry class. Correct now: There are ten women and four men in my Chemistry class. 15. Original: Senator Barbara Mikulski, Democrat Maryland, has a six-year...
*Monday, June 10, 2013 at 12:06pm*

**Physics**

1st) c) 1.5*V d) t=-ln(0.25)*2*R*C
*Saturday, May 25, 2013 at 5:42am*

**Physics**

Do you know 1st c) and d) ?? And 3rd problem??
*Saturday, May 25, 2013 at 4:59am*

**Physics**

And can anyone tell me the answer of 1st (g)??
*Sunday, May 12, 2013 at 11:38pm*

**Quantum Physics**

1st is part c): -z-h- -x-h-
*Tuesday, April 16, 2013 at 3:30pm*

**algebra**

I believe it was a sum of -30 no big deal .... 1st integer x-2 2nd integer x 3rd integer x+2 x-2 + x + x+2 = -30 3x = -30 x = -10 1st is -12 2nd is -10 3rd is -8
*Thursday, April 11, 2013 at 8:13am*

**Statistics**

FOR THE 1ST THE ANSWER IS 154.1
*Thursday, March 28, 2013 at 2:48pm*

**statistics**

The grades on the final examination given in a large organic chemistry class are normally distributed with a mean of 72 and a standard deviation of 8. The instructor of this class wants to assign an “A” grade to the top 10% of the scores, a “B” grade to the...
*Sunday, March 24, 2013 at 5:22pm*

**psychology**

2. Is absolutely Bipolar in the manic phase. I have 1st hand knowledge of this! 3.paranoid schizophrenia 4.This one almost seems like Conduct Disorder 5.definitely panic attack... again 1st hand knowledge 6.possible OCD and insomnia 7.schizophrenia accompanied w/delusions 8....
*Saturday, March 23, 2013 at 9:06am*

**Math**

speed for first leg --- x mph speed for 2nd leg ---- x+10 mph time for 1st leg = 150/x time for 2nd leg = 183/(x+10) 183/(x+10) - 150/x = 3/60 = 1/20 times 20x(x+10) 3660x - 3000(x+10) = x(x+10) 3660x - 3000x - 30000 = x^2 + 10x x^2 - 650x + 30000 = 0 (x-600)(x - 50) = 0 x = ...
*Thursday, February 28, 2013 at 10:28pm*

**math**

BAD is correct. It is 84. If you would like to use algebra, do the following: x:= Unit Digit Number y:= Tens Digit Number The units digit is 4 less than the tens digit number so We know that x=y-4 The tens digit is twice the units digit so we know that y=2x Now we can take the...
*Monday, February 18, 2013 at 3:02am*

**MATH HELP!**

homeroom is after 1st period.....
*Saturday, February 16, 2013 at 9:50am*

**chemistry**

newton 1st law of motion
*Wednesday, February 6, 2013 at 2:19am*

**Algebra**

x 1st + even integer x+2 2nd + even integer x^2+(x+2)^2= 164 x^2+x^2+4x+4-164=0 1/2(2x^2+4x-160=0) x^2+2x-80=0 (x+10)(x-8)=0 x=-10 & x=8, disregard -10 since we are looking for positive integers... so, x=8 (1st even) x+2= 10 (2nd even)
*Monday, February 4, 2013 at 5:31am*

**Math**

So the 1st derivative has 5 solutions, indicating that the 1st derivative must have been a 5th degree, making the original function sixth degree function It must have had some double roots, that is , touching the x-axis without crossing over gives us 2 equal roots.
*Sunday, January 27, 2013 at 9:32am*

**Pre-Calculus**

from the 1st ---> 4x-9 = y sub that into the 2nd 2x + 3(4x-9) = 12 2x + 12x - 27 = 12 14x = 39 x = 39/14 y = 4(39/14) - 9 = 15/7 check: 1st: LS = 4(39/14) - 15/7 = 156/14 - 30/14 = 126/14 = 9 = RS 2nd: LS = 2(39/14) + 3(15/7) = 39/7+ 45/7 = 84/7 = 12 = RS
*Tuesday, January 22, 2013 at 9:56pm*

**Math**

time for 1st flight = 4800/x time for return flight = 4800/(x-200) 4800/(x-200) - 4800/x = 2 multiply by x(x-200) 4800x - 4800(x-200) = 2x(x-200) 960000 = 2x^2 - 400x x^2 - 200x - 480000=0 (x - 800)(x + 600) = 0 x = 800 or x = -600 , the negative speed makes no sense so x = ...
*Sunday, January 20, 2013 at 8:40am*

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