Friday

April 18, 2014

April 18, 2014

Total # Posts: 200

**Algebra 2**

(12xy)4

**Algebra 2**

Write this expression in expanded form. 4(a-b)2

**arithmetic**

Using math to fine 9:20 am to 5:05 pm

**physics**

Sorting Elements: Give out bags of small, varied objects of different shapes colors, and sizes, such as seashells, beads, or rocks. Have groups of students orgasnize the shells so that similar objects are near each other, but make sure that they are organized according to serv...

**Pre-Algebra I**

Write in exponential notation... 95.214 how do I do this?

**Chemistry**

Xylose, a sugar isolated from wood, has the empirical formula CH2O. If a 6.25 mole sample of xylose has a mass of 938.3 g, what is xylose's molecular formula?

**Engineering Economics**

Sales of bottled water in the U.S totaled 16.3 gallons per person in 2004. Water costs .40 cents per bottle.A municipal company provides tap water for $2.10 per 1000 gallons. If the average person drinks two bottles of water per day or uses 5 gallons per day in getting that am...

**area an perimeter**

10=b

**area an perimeter**

a parallelogramhas an area of 4yd squared the height is 1yd find the base

**math**

solve by the elimination method x+6y=12 -x+7y=1

**finite math**

1. what are the mean and standard deviation for this distribution of weekly take-home pay amounts? 2. what percentage of the pay amounts lie within 1 standard deviations of the mean? 3. what percentage of the pay amounts lie within 2 standard deviations of the mean? 4. what pe...

**finite math**

kris scored 630 points on a particular section of a CPA exam for which the score were normally distributed with a mean of 600 points and a standard deviation of 75 points. At a differenttime, kerry scored 540 points on the same section, for which scores were normally distribut...

**finite math**

The weights of boxes of Brand Z cereal were found to be normally distrubted with a mean of 16.5 ounces and a standard deviation of 0.4 ounces. a. what percentage of the boxes will weigh more than 16 ounces? b. what percentage of the boxes will weigh between 15.5 and 16.5 ounce...

**algebra**

5ã-1/1024

**algebra**

convert to decimal 8.93x10^7

**math**

given an 8 foot by 10 foot wall how many 6 inch square tiles would be needed to cover the wall

**algebra**

If I receive $6570 from the sale of my car and the sales person got a 10% commission, how much did my car sell for.

**Physical Science**

Suppose you are traveling in a bus at highway speed on a nice summer day and the momentum of an unlucky bug is suddenly changed as it splatters onto the from window. a. Compared to the force that acts on the bug, how much force acts on the bus? (more) (the same) (less) b. The ...

**Math**

(1/6)^ 60 The probability is 1/6 for each roll. So multiply 1/6 60 times.

**math**

Fill in the blank: gamma = 2(inverse tangent of e to the x) - pi/2 is the _______ of x.

**Math**

Consider a line segment with endpoints A and C with B a point on segement AC. The measure of AB = x^2, the measure of BC = 9x, and the measure of AC = 36. Then AB + BC = AC x^2 + 9x = 36 x^2 + 9x -36 = 0 (x + 12)(x - 3) = 0 x + 12 = 0 or x - 3 = 0 x = -12 x = 3 Don't use x...

**math**

Fill in the blank: Gamma = 2(inverse tangent of e to the x) minus pi/2 is the _________ of x.

**Physics**

Two students walk in the same direction along a straight path, at a constant speed - one at .90 m/s and the other at 1.90 m/s. a.) assuming that they start at the same point ant the same time, how much sooner does the faster arrive at a destination 780 m away? b.) how far woul...

**Physics**

What is the shortes possible time in which a bacterium could travel a distance of 8.4 cm across a Petri dish at a constant speed of 3.5mm/s?

**English - beowulf**

so Beowulf is an epic poem but what sorts of conflicts with or resistances to the idealogy of epic can be expressed. What are some examples in the poem?

**English - beowulf**

The relationship between the narrator andthe story, and between the narrator and the audience, in Beowulf?

**Math**

What is a polynomial in x?

**Math (polynomials)**

solve for x: and could you show me the step on how to do it? thank u! 1) 5.8 = .17x(sqaured)+.95x + 5.68 2) 5.8 = .09x(squared) + .01x (cubed) + 1.1x + 5.64

**math (radicals)**

but it's square root of 3 plus CUBE root of 15.. i dont think you can add a square root and a cube root together.. explain please?

**math (radicals)**

square root of 3 plus the cube root of 15

**math (radicals)**

8^(-4/3) + 2^(-2) OVER 16^(-3/4) + 2^(-1)

**math**

depends.. chart: is pretty much in columns or rows.. usually the ones on top of the column are titles and the first row on the first column are also usually titles (depends if you need it) in charts, you pretty much just list things, in an organized way.. table is just a bunch...

**french**

i need 10 french slang terms. but they need to be 10 slang terms that teens use . =]

**Thesis For History**

My topic for History is,"French Troops refusing to fight in WWI." How can I make my thesis?

**Math!Please Help Me!**

Solve the following quadratic by either factoring or using the quadratic formula: 6x2 - 5x = 6 6x^2 -5x -6 = 0 (3x+2)*(2x-3) = 0 Take it from there

**Math[more]**

Directions:Subtract and simplify. Problem: m+9/(m+3)-(-4m-6)/(m+3) Choices: a.5 b.-3 c.-3(m-1)/(m+3) d.m-1/m+3 What I Think: I think it is letter d. (m+9)/(m+3)-(-4m-6)/(m+3) = (5m+15)/(m+3) =5(m+3)/(m+3) = ? Your answer is not correct

**Math23456**

Problem:4x^2y^3 Choices: a.2nd degree b.3rd degree c.4th degree d.5th degree What I think:I think it is letter C. It is degree 3 in y. It is degree 2 in x. Normally, one would call this a degree equation , or a cubic equation.

**Math133**

Diections:Add and Simplify Problem:x/3+(5x)/3 Choices: a.2x b.x c.5x^2/9 d.5x^2/3 What I think:I think it is letter A. yes, it is A. (6/3)x = 2x

**Math Help Please!!!**

Solve the equation:(x+3)/-3=(x+3)(x-1) Divide both sides by (x+3), multipy both sides by -3. I Will be happy to critique your work. will it be x=-2? no. 1=-3(x-1) 1=-3x+3 -2=-3x x= 2/3 check that.

**BSHRM**

1.how will you know that the food is safe to eat? 2.what are the factors involved in food safety? thank you :-) http://www.foodsafety.gov/ http://www.google.com/search?as_q=&hl=en&num=10&btnG=Google+Search&as_epq=food+safety&as_oq=&as_eq=&lr=&as_ft=i&as_filetype=&as_qdr=all&as...

**BSHRM**

I can't find any classification of food service operations. ;-) http://www.answers.com/classification classification = type = kind =)

**BSHRM**

1.What are the different classification of food service operations? 2.What are the different types of food service system? http://www.google.com/search?q=food+service+operations&rls=com.microsoft:en-us:IE-SearchBox&ie=UTF-8&oe=UTF-8&sourceid=ie7&rlz=1I7SUNA =)

**Math Help**

Directions:Solve and graph equation using words.Then include wether it is solid line or dotted,hoe to graph it,and which side shading is on. Problem:5x+3y>-6 and 27+x<6 Problem is supposed to be: 5x+3y>-6 and 2y+x<6 put these in order of what you want to plot... y&...

**MATH HELP PLEASE**

y <= 4x - 1 Margie, I believe you are doing the graphs with shading. Do the line on the graph which will be a solid line I believe. And then do the test point to see which side needs to be shaded. the test point is (0,0) well those are the points that i worked with. I hope ...

**Simplify Completley**

x/(6)+ 11x/6 2x

**Math2**

Directions:Solve and graph the inequalities using words. Problems: 4.-3x>-6 or x-5<=2 5.x+2>2x-1 or -6>-2x-2

**Math1**

Directions:Solve and graph the inequality using words. Problem: 1.)2x>-4 and x-4<=2 2.)x+3=>2x+1 and -4x<-8 3.)-6<x+3>6(Remember this is an "and" statement) this doesn't look like a question.

**Research Paper**

WHat do I do if I have a a source but I don't have the authors name and I have to put it in the paper...?understand.? Many internet sources don't list the author. You can use the URL and title of the site. oh ok thank you...so for example: blah blah blah(URL) or can yo...

**Thesis Statement for Research Paper**

I need a thesis statement for my research paper on The Place de la concorde.How can I do that? http://www.indiana.edu/~wts/pamphlets/thesis_statement.shtml http://www.unc.edu/depts/wcweb/handouts/thesis.html Above are two very good sites on how to write a thesis statement. In ...

**Math2(Please help)**

Directions:Solve and explain the inequality using words.Tell which wa shading goes. Problem: x+3=>2x+1 and -4x<-8 -4x<-8 The first inequality can be rewritten x <= 2 In words, x is less than or equal to 2. You can get that by subtracting x+1 from both sides. The se...

**Math(please help)**

Directions:Solve and explain the inequality using words.Tell which wa shading goes. Problem: 2x>-4 and x-4<=2 2x>-4 x>-2 x-4<= 2 x<= 6 on a number line (i'm guessing)a open circle would be on -2 going in the positive direction and a closed circle on 6 goi...

**Math2(PLease Help)**

Directions:Solve the rational expression. Problem: 1/(x+3)+1/(x-3)=1/(x^2-9) get (x+3), (x-3), and (x^2-9) to the same denominator...

**Math(Please Help)**

Problem: x/4 - 4/x = 0 Directions:Solve the rational expression. x = -4 x = 4

**Math Help Please**

Solve and graph(using words)the inequalities.Then describe the graphs using words. Example:x>5andx<9.[There would be an open circle on the 5 and an open circle on the 9.The shading is between the 2numbers. My Problem: -6<x+3<6(Remember,this is an "and" st...

**Please Help[math]**

*Describe your graphs using words. 2x > -6 and x - 4 < 3 You have to solve for x. x>= -3 and x<=7 Doesnt the line segment start at -3 and end at x=7?

**MATH(PLease Help)**

Problem: (y+2)/(y) = 1/(y-5) Directions: Solve the rational expression. Remember that if: a/b = c/d then: a * d = b * c I believe in school they call this the fraction crossover rule or fraction cross rule or something like that. i would work it like a proportion and cross mul...

**Please Check my Journal for MacBeth**

Running Journal: Macbeth (Act 1 Scene 1) Thunder and lightning; enter three Witches: In the play as a whole, people are tossed about by forces that they cannot control, and so it is in the opening scene. The witches, blown by the storms of nature and war, swirl in, then out. A...

**Math3(Please check)**

Problem: (2x+1)/(x^2-16) - (x^2-6x-7)/x^2-11x+28 What I Got: -x^2-3x-3/x^2-16 correct RIGHTAMUNDO WLCM :)

**Math 2(Please Check)**

Problem: (x+2)/2x^2+5x+2 + (x-3)/2x^2-5x-3 What I Got: 0 at x=0, one gets 2/2 + -3/-3 which is not zero. You messed up a sign, I suspect. you are right girl

**Math(Please Check)**

Problem: 4x/(x+2)-8/(x-1) What I Got: 4x^2-4x-16/(x+2)(x+1) *I had to simplify the rational expression No. At x=0, it doesn't check. The starting problem gives 8, your answer gives -8. I suspect a sign error somewhere. Probably in the denominator, the x+1 should be x-1

**math444**

x^2/x+3 - 5/x+3=0 *Please solve the rational equation Your non use of parenthesis is annoying and most confusing. I assume you meant x^2/(x+3) - 5/(x+3)=0 multiply both sides of the equation by x+3, and solve.

**math3333**

y+2/y =1/y-5 *Please solve the rational equation I am not certain if the right term is 1/(y-5) or the right side is 1/y -5

**Math Help 222**

x^2/x-4 - 7/x-4=0 *Please solve the rational expression. multipy both sides by (x-4) then you have x^2-7=0 x= +- sqrt 7

**please help math**

x/3-2/3=1/x *Solve the rational below. I really need help. multiply both sides by x. x^2/3 -2x/3 = 1 multiply both sides by 3 subtract three from each side x^2 -2x -3=0 (x-3)(x+1)=0 Then either of the factors can be zero, or x=3 or x=-1

**Math 3 PLease Help**

*Please solve the rational expression. x^2/x-4 - 7/x-4=0

**Math 2 pLEASE HELP**

y+2/y=1/y-5 *Please solve the rational equation. Done the same way as the previous post.

**Math Help Please...**

x/3-2/3=1/x *Solve the rational below. I really need help. Multiply through by 3x x^2 -2x = 3 And solve. I don't get it... can you explain it more.then I can help you Margie

**BobPursley3...another one..**

Problem 3: 4x/(x+2) - 8/(x-1) What I did: Common denominator is: (x+2)(x-1) 4x(x-1)/(x+2)(x-1) - 8(x+2)/(x+2)(x-1) [4x(x-1) - 8(x+2)]/(x+2)(x-1) multiply the numerator out. 4x^2 -4x -8x-16 4x^2-12x-16 factor 4 out 4(x^2-3x-4) factor 4(x-4)(x+1) and that will reduce over the de...

**bobPursley2...the other one**

Problem 2: (x+2)/(2x^2+5x+2) - (x-3)/(2x^2-5x-3) What I did: 2x^2+5x+2 factors are (2x+1)(x+2) 2x^2-5x-3 factors are (2x+1)(x-3) Then: (x+2)/(2x+1)(x+2) - (x-3)/(2x+1)x-3) So the common denominator is (2x+1)(x+2)(x-3) using that combine the fractions. I already knew the common...

**BobPursley..here it is:**

Problem 1: (x-2)/(3x+4) - 6x/(x+1) What I did: Common denominator is: (3x+4)(x+1) (x-2)(x+1)/(3x+4)(x+1) - 6x(3x+4)/(x+1)(3x+4) [(x-2)(x+1) - 6x(3x+4)] / (x+1)(3x+4) (x^2 - x - 2 - 18x^2 - 24x) / (x+1)(3x+4) x^2 - 18x^2 = -17x^2 -x - 24x = -25x (-17x^2 - 25x - 2) / (x+1)(3x+4)...

**Writeteacher...**

how come if I wanted to help someone I can't post a website?What do I do if I need to post a website? You cant. We do that to keep porn links off of the forum. but that kid was looking for websites on jesus and mohammad and I couldn't give him the awesome website.is th...

**Bobpursley can you help me with my problems below?**

I had problems from yesterday but I still don't get them can you help?do you want me to repost? repost: I cant find them.

**Math33333**

Please help me! Problem: x+2 x-3 _________ - _________ 2x^2+5x+2 2x^2-5x-3 *Simplify the expression 2x^2+5x+2 =(x+2)(2x+1) 2x^2-5x-3 =(2x+1)(x-3) So x+2/(x+2)(2x+1) = 1/2x+1 x-3/(2x+1)(x-3) = 1/2x+1 Finally 1/2x+1 - 1/2x+1 = 0 Let's take a look at the problem: (x+2)/(2x^2+...

**Math2(Please Help)**

4x 8 ___ - ______ x+2 x-1 *Simplify The Expression I'm going to assume your problem is this: 4x/(x+2) - 8/(x-1) Use a common denominator since the denominators are not the same. Common denominator is: (x+2)(x-1) Rewriting the problem, we have: 4x(x-1)/(x+2)(x-1) - 8(x+2)/(...

**Math(Please Help)**

x-2 6x ____ - _____ 3x+4 x+1 *You are supposed to simplify the expresion.I really need help with this and some other problems.Please and Thank you.- Perhaps I could help but I can't make heads or tails of your posts. Try using parentheses (and / bar for divisiion). ok well...

**"It Happened To Nancy'**

How do you feel about what happened to Nancy? *My homwork is to create a table showing what people felt about what Happene to nancy. Thank you for using the Jiskha Homework Help Forum. I answered this earlier but I see it didn't post. First of all, make a list of all the c...

**sports**

um...wasn't it the colts? wo won the super bowl in football no lik i sed

**Math...PLease Help Me...**

Problem: 6-3x 25 ---- * ---- 5 4x-8 *I have to multiply the expression and simplify it.Thanks for your help. The five goes into the twenty five, and you can factor out a three from the first term in the numerator, and a two from the second term in the denominator. Then, notice...

**More Math 2 See If You Can Help Me... :)**

Problem: a^2-9 a^2-3a ----- * -------- a^2 a^2+a-12 Here Is What I Got: (a+3)3a ------- (a+4) *Please Check It.I think I did it wrong though.. =[ I'm going to assume your problem is this: (a^2-9)/a^2 * (a^2-3a)/(a^2+a-12) Note: I'm using * to mean multiply. If that is ...

**PLease Help Me IN Math**

Problem: 25-x^2 6 ------ * --- 12 5-x What I Got: 5-x --- 2 *Please Check My Work And Tell Me If I am Correct or wrong.If I am wrong please help me as much as possible.Thank you~ Wrong. When are you going to factor the 25-x^2 ? The 5-x then will divide out. oh...so then will i...

**Please Help Me Math**

Find the sum and express in simplest form. Show all work: x^2 2x-15 ----- *------ x^2-9 x^2-9 *I don't get this at alll.Plz help me. I assume you are trying to add, since the problem says "find the sum" and express in simplest form. x^2/(x^2-9) + (2x-15)/(x^2-9) ...

**Math[Please Help]**

Solve the inequality x > 6x - 10 and write a description of the graph. Show all work Subtracting x from both sides does not change the inequality sign direction. 0 > 5x - 10 Add 10 to both sides 5x < 10 Divide both sides by 5. x < 2.

**Math2[Please Check Again]**

Problem: a^2-9 a^2-3a ----- * -------- a^2 a^2+a-12 What I Got: 3-3a ---- a-4 *Please Check My Work.* Nope. factor the denominator to a^2(a+4)(a-3) The last factor divides out in the numerattor (second term factors to a(a-3). The a in the numerator reduces the denominaor a^2 t...

**Math[PLease Check]**

Problem: 25-x^2 6 ------ * --- 12 5-x What I got: 5-x --- 2 *PLease Check My Work. No. Factor the 25-x^2 into two factors. Then the 5-x in the denominator divides out. So then is it: 5+x --- 2 yes. 12x12

**PLease Check My Work**

3. T^2-25/t^2+t-20= (t-5) (t+5)/ (t-10) (t+2) 4. 2x^2+6x+4/4x^2-12x-16= 2(x+2) (x+1)/4 (x-4) (x+1) 5. 6-y/y^2-2y-24= 1/(y+4) *Please check them.- 3. (t-5)(t+5) / (t+4)(t-5) 4. 2((x-1)(x+2)) / 4((x+4)(x-1)) 5. (6-y) / (y+6)(y-4) i dont really understand what this is... but lol ...

**Please Help (Math)**

You have to simplify each expression: 1/R+1/T multiply the first term by t/t, and the second R/R You should then get... (T+R)/RT

**Please Check (Math2)**

a^2-9 a^2-3a ----- * ------- a^2 a^2+a-12 *I got: 3-3a/4 I dont think so. factor the a^2-9, and the second numerator to a(a-3) Then the denominator factored is a^2*(a+4)(a-3) So wait... don't I have to first have to take out the repeated thingys.? I dont know what repeated...

**Math(Please Check Again)**

25-x^2 6x^2 ------ * ------ 12 2x *I got: 5-x/2 No. Try again. Can you tell me what I did wrong please.? You have to factor the numerator, you should have two factors for the first, and one for the second. In the denominator, you will have 24 x. I think the x divides out, and ...

**Math(Please Help)**

* I don't get this problem at all... 4(x+2) 6x^2 ------ * ---- 5x 2x what are the directions? in the denominator, you have 10x^2 in the numerator, you have 24x^2(x+2) the x^2 divides out, and the numbers can be reduced. that would be (12(x+2))/(5) the directions say: Multi...

**Math(PLease Check)**

m-2 m+5 --- * ---- m-5 m-2 *I got : m+5 ---- m-5 you're absolutely correct. the m-2's cancel out and you're left with m+5/m-5 thank you hopefully you can help me with the others...

**MATH PLEASE CHECK IT!!2**

m-2/m-5*m+5/m-2=-1 If your problem is this: (m - 2)/(m - 5) * (m + 5)/(m - 2) = -1 (m - 2) cancels out in both the numerator and denominator on the left-hand side since you are multiplying. That leaves us with this: (m + 5)/(m - 5) = -1 To solve for m: Multiply both sides by (...

**Please Check This 2!**

p^4-1=(p^2)(p^2+1) Typo? p^4-1=(p^2-1)(p^2+1)

**More Math To Check Please**

4c^2 - 12c + 9 This is what I got: (2c+3)(2c-3) *Is that correct.? No, it is (2c-3)^2.

**Please Check My Math Work**

a^2 - 2ab - 15b^2 This is what I got: (a-5b)(a+3b) Correct! x^4+2x^3-4x^2-5x-6 DIVIDED BY x^2+x-2 My answer: x^2+x-3 remainder of -12\x^2+x-2

**Thanks TRISH**

thanks...even though you didn't help me with that you still helped me.. You're welcome. Like BobPursley told you, I just can't give you the answer. Not only is it not what this site is for, you would never learn anything, and like he mentions, it is cheating. The m...

**Cout Iblis Can You Help Me W/The ?'s**

They are title:Math for Trish To Help Me With We are not going to allow anyone to do your homework for you, or tests. That is cheating, pure and simple. Sorry. I don't have time anymore today,. I'll take a look tomorrow. As Bob said, we don't do the homework for yo...

**MAth!PLease Help!**

5. Find the x and y intercepts of each linear equation. Be sure to write your answers as ordered pairs. a.y=3x-6 b.6y=-x+2 Set x = 0 and y = 0 to find the intercepts. will that get me 2 thingys for each.? Again, you should show your own answer first, but I'll show you (a)....

**Math for Trish To Help Me With**

Factor the following. You will earn 5 points for each polynomial that is factored correctly. Please label your individual answers with a – f. a.) 4x2 - 25 b.) 3x2 + 6y c.) x^2 - 7x + 10 d.) 2x^2 - 9x – 18 e.) 2ax + 6bx + ay + 3by f.) 6x^2 + 12x – 48 *Can you hel...

**Math(Please Check!)**

1. Which line is the flattest (or is less steep)? Why? a.y = 5x -6 b.y = 5x + 6 c.y = x - 3 d.y = 1/2x + 3 I think It is C.It has the smallest slope. Someone Please Help me! ...Help me... Doesn't d have the smallest slope? 0.5x. Please...I just want to see.. Margie -- You ...

**Check Please(Math)**

(-2x^2y)^3*(5xy^3)^2=(-2x^2y)^3 = -8 x^6 y^3 *Please check my work. What did you do with the (5xy^3)^2 part. The first part you did ok. But you can't just throw away part of the equation. I don't get that part.What do I do there.? (5xy^3)^2=25x^2y^6 You did the first p...