Thursday
May 5, 2016

# Posts by margie

Total # Posts: 205

Probability
I think it should be listed as probability.
August 27, 2015

Geometry
A plant is picked at random. There is a 30% chance the plant was purchased this year. There is a 6% chance that the plant was purchased this year and will produce berries. What is the probability that the plant was purchased and will not produce berries?
August 27, 2015

Geometry
It's probabliity
August 27, 2015

Geometry
There were 30 people. 9 visited the museum and zoo. 14 visited the zoo but not the museum, 5 visited the museum and not the zoo and 2 visited the zoo but not the museum. What is the probability that a person picked at random visited the museum and not the zoo?
August 27, 2015

Algebra 2
(12xy)4
September 24, 2013

Algebra 2
Write this expression in expanded form. 4(a-b)2
September 24, 2013

arithmetic
Using math to fine 9:20 am to 5:05 pm
January 14, 2013

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 ...
November 12, 2012

Pre-Algebra I
Write in exponential notation... 95.214 how do I do this?
August 19, 2012

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?
April 23, 2012

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 ...
October 10, 2011

area an perimeter
a parallelogramhas an area of 4yd squared the height is 1yd find the base
September 25, 2011

math
solve by the elimination method x+6y=12 -x+7y=1
July 25, 2011

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 ...
April 14, 2011

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 ...
April 14, 2011

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 ...
April 14, 2011

algebra
5ã-1/1024
March 27, 2011

algebra
convert to decimal 8.93x10^7
March 27, 2011

math
given an 8 foot by 10 foot wall how many 6 inch square tiles would be needed to cover the wall
March 1, 2011

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.
November 29, 2010

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 ...
April 28, 2009

Math
(1/6)^ 60 The probability is 1/6 for each roll. So multiply 1/6 60 times.
November 4, 2008

math
Fill in the blank: gamma = 2(inverse tangent of e to the x) - pi/2 is the _______ of x.
November 4, 2008

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...
November 4, 2008

math
Fill in the blank: Gamma = 2(inverse tangent of e to the x) minus pi/2 is the _________ of x.
November 4, 2008

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 ...
August 31, 2008

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?
August 31, 2008

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?
August 28, 2008

English - beowulf
The relationship between the narrator andthe story, and between the narrator and the audience, in Beowulf?
August 28, 2008

Math
What is a polynomial in x?
August 20, 2008

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
August 20, 2008

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?
August 19, 2008

square root of 3 plus the cube root of 15
August 19, 2008

8^(-4/3) + 2^(-2) OVER 16^(-3/4) + 2^(-1)
August 19, 2008

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...
August 19, 2008

french
i need 10 french slang terms. but they need to be 10 slang terms that teens use . =]
February 5, 2008

Thesis For History
My topic for History is,"French Troops refusing to fight in WWI." How can I make my thesis?
September 30, 2007

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
June 29, 2007

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
June 29, 2007

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.
June 29, 2007

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
June 29, 2007

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.
June 29, 2007

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&...
June 7, 2007

BSHRM
I can't find any classification of food service operations. ;-) http://www.answers.com/classification classification = type = kind =)
June 7, 2007

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 =)
June 7, 2007

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&...
June 5, 2007

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 ...
May 29, 2007

Simplify Completley
x/(6)+ 11x/6 2x
May 6, 2007

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
April 18, 2007

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.
April 18, 2007

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 ...
April 15, 2007

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 ...
April 14, 2007

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 ...
April 10, 2007

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 ...
April 10, 2007

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...
March 27, 2007

Problem: x/4 - 4/x = 0 Directions:Solve the rational expression. x = -4 x = 4
March 27, 2007

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" ...
March 25, 2007

*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?
March 12, 2007

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 ...
March 8, 2007

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. ...
March 5, 2007

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 :)
March 5, 2007

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
March 5, 2007

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
March 5, 2007

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.
March 4, 2007

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
March 4, 2007

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
March 4, 2007

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
March 4, 2007

*Please solve the rational expression. x^2/x-4 - 7/x-4=0
March 4, 2007

y+2/y=1/y-5 *Please solve the rational equation. Done the same way as the previous post.
March 4, 2007

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
March 4, 2007

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 ...
March 4, 2007

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...
March 4, 2007

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...
March 4, 2007

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 ...
March 4, 2007

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.
March 4, 2007

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+...
March 3, 2007

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)/(...
March 3, 2007

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...
March 3, 2007

"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 ...
March 1, 2007

sports
um...wasn't it the colts? wo won the super bowl in football no lik i sed
March 1, 2007

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...
February 27, 2007

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 ...
February 26, 2007

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 ...
February 26, 2007

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) ...
February 24, 2007

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.
February 24, 2007

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 ...
February 24, 2007

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
February 24, 2007

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 ...
February 22, 2007

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
February 21, 2007

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...
February 21, 2007

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 ...
February 21, 2007

* 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: ...
February 21, 2007

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...
February 21, 2007

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 (...
February 18, 2007

p^4-1=(p^2)(p^2+1) Typo? p^4-1=(p^2-1)(p^2+1)
February 7, 2007

4c^2 - 12c + 9 This is what I got: (2c+3)(2c-3) *Is that correct.? No, it is (2c-3)^2.
February 7, 2007