Questions Asked on March 5, 2007

If there are 80 milligrams of a radioactive element decays to 10 milligrams in 30 minutes then what is the elements half life in
1. 1 answer
2. asked by jojo
3. 3,456 views
6. The chapter uses the analogy of a "leaky bucket" to explain one constraint on the redistribution of income.a. What elements
1. 2 answers
2. asked by Sarah
3. 2,394 views
The combination of an applied force and a constant frictional force produces a constant total torque of 35.8 Nm on a wheel
1. 0 answers
2. asked by John
3. 1,350 views
In Mary shelley's frankenstein, did frankenstein believe in democracy?This site will give you information on Themes and Motifs
1. 0 answers
2. asked by casey
3. 1,335 views
I have a beak like a birdAnd my arms are like snakes I hav more ink than a pen But I write to confuse What am I What animal has
1. 2 answers
2. asked by taryn
3. 1,329 views
A 2.8 kg body is at rest on a frictionless horizontal air track when a horizontal force F acting in the positive direction of an
1. 0 answers
2. asked by Technoboi11
3. 1,300 views
sqrt(1+tan x)-sqrt(1+sin x)lim all divided by x^3 x-->0 Use that Sqrt[1+x] = 1+ 1/2 x + 1/2 (-1/2)/2 x^2 + 1/2(-1/2)(-3/2)/6 x^3
1. 0 answers
2. asked by Matt
3. 1,295 views
how do you even start to begin how to slope in standard form and slope intercept and point slope cuz i have a test tomrrow on it
1. 0 answers
2. asked by kendra
3. 1,230 views
Ok, in this question, the drops is throwing me off totally, can someone help! A nationally known company markets a product
1. 1 answer
2. asked by Toni
3. 1,159 views
A drop of oil (volume 0.05cm3) is released from a medicine dropper on to the calm surface of a pond where it spreads out to
1. 0 answers
2. asked by Jaime
3. 1,150 views
What are some challenges for rational expressions?Also on my previous question about why are polynomials important bobpursly can
1. 0 answers
2. asked by jas20
3. 1,147 views
Given quadrilateral ABCD,ABllDC, diagonal AC.we can prove that angle 1= angle 2, but cannot prove angle 3=angle4 Why is this.
1. 2 answers
2. asked by DANIELLE
3. 1,143 views
Please note that <b>we don't do students' homework</b> for them.Once <b>YOU</b> have tried to write a sentence for your
1. 1 answer
2. asked by Writeacher
3. 1,074 views
14.what value of n will result in a mean if 3115.what value of n will result in a median of 23 15.what value of a will result in
1. 1 answer
2. asked by alice
3. 1,028 views
I really need help with my science lab. I was sick when we did the lab on Thursday and Friday was a snowday so I did not get to
1. 1 answer
2. asked by Scott
3. 1,005 views
An iceboat is at rest on a frictionless frozen lake when a sudden wind exerts a constant force of 212 N, toward east, on the
1. 0 answers
2. asked by Technoboi11
3. 974 views
Can someone check this for me?Predict which reactions are spontaneous: a) Zn(s) + 2H+(aq) --> Zn+2(aq) + H2(g) b) CaCO3(s) +
1. 0 answers
2. asked by Chris
3. 959 views
At a certain instant, a particle-like object is acted on by a force F = (3.0 N) i - (1.0 N) j + (8.0 N) k while the object's
1. 0 answers
2. asked by Technoboi11
3. 905 views
I'm trying to help my nephew with some homework and am hopeless. Please help with these questions:If 180 calories of heat were
1. 0 answers
2. asked by Diane
3. 905 views
The area of the circle is radius squared times 3.14. That gives you an area in square feet.The volume of the tank is that area
1. 1 answer
2. asked by bobpursley
3. 897 views
To determine a GPA: 2(credit( Hr. Art, 3Hr. History, 4 Hr. Science 3 Hr. Math, & 1 Hr. Science lab.The scores were B in Art, A
1. 0 answers
2. asked by Betty
3. 886 views
Please, will someone help me balance this equation? There's always one element I just can't seem to balance.Cu+HNO3===>NO2+Cu(NO
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2. asked by Fidelia
3. 880 views
15 chapters in 5 days -I already know the unit rate is 3 - I have to give the rate and unit rate. I don't know how to figure out
1. 1 answer
2. asked by brandon
3. 878 views
The radius of a circle is 8ft. I have 60ft of tile. Is this enough to cover circle.Do you mean you have 60 SQUARE feet of tile?
1. 1 answer
2. asked by jodie
3. 861 views
Compound 1 / Compound 2/ O " CH2 = CH - CH - OH + CH3 - CH - CH2 - C ' ' ' CH3 CH3 OH i) Identify any functional groups in
1. 0 answers
2. asked by Fraser
3. 857 views
what accomplishments does Troy have??Troy was a city, and had no accomplishments. However, its inhabitants at different times
1. 0 answers
2. asked by emily
3. 812 views
What is sin(i) -- (sin of the imaginary number, i)What is cos(i)-- cosine of the imaginary number, i orrr tan(1+i) You can
1. 0 answers
2. asked by Becky
3. 810 views
How many grams of oxygen can be produced by heating 10.0g of mercury (II) oxide?Sulfuric acid is added to 8.10g of magnesium,
1. 0 answers
2. asked by Beautiful
3. 801 views
In Act One of the Crucible by Arthur Miller. Miller included information about land disputes, lawsuites, and job oppointments.Wh
1. 0 answers
2. asked by Bryan
3. 780 views
which alcohol and carboxylic acid would produce benzyl isobutyrate by Fischer esterification? and which alcohol and carboxylic
1. 0 answers
2. asked by Rob
3. 764 views
solve and writein simplest terms:3 yards 1 foot 10 inches+ 5 yards 2 feet 4 inches 8 yards 3 feet 14 inches 8 yds 4 feet 2
1. 1 answer
2. asked by halida
3. 764 views
What is the poem viejita analfabeta about and is the authors opinion of the lady positive or negative? i looked all over but
1. 1 answer
2. asked by Danielle
3. 762 views
“Six months at sea! Yes, reader, as I live, six months out of sight of land …” Herman Melville, wrote in the preface of
1. 0 answers
2. asked by Mike
3. 743 views
After a completely inelastic collision two objects of the same mass and the same initial speed are found to move away together
1. 0 answers
2. asked by Tammy
3. 733 views
If Sally can paint a house in 4 hours, & John can paint the same house in 6 hours, how long will it take for both of them to
1. 1 answer
2. asked by Katie
3. 728 views
why Mexico encouraged Americans to settle in Texas?Mexico had gotten independence from Spain,but most of the land claimed north
1. 0 answers
2. asked by victoria
3. 724 views
Hey i was wonderingg for my science homework i don't understand how to do this problem. It says:Plutonium 239 can be produced by
1. 0 answers
2. asked by Tarun
3. 712 views
In the Great Gatsby what is Jordan’s Nick’s Daisy’s, and Tom’s motivation, hope, or dream.I haven't read this work. The
1. 0 answers
2. asked by Ron
3. 706 views
My circle has a radius of 8ft. What is the distance of the circle?What "distance" are you talking about? Diameter?
1. 1 answer
2. asked by jodie
3. 694 views
10m/11p.44p/20k.15k/8mwe are multiplying and dividing rational expressions. can ne1 help? I have no idea what you need. Your
1. 0 answers
2. asked by Joshua
3. 691 views
Can someone help me figure this out?1. Find the first and third quartiles, Q1 and Q3 of the following numbers:
1. 0 answers
2. asked by Denim
3. 689 views
Hi, I'm writing an essay on how Hamlet is a participant of hypocrisy. Can anyone help me write a thesis statement. My points are
1. 0 answers
2. asked by Raj
3. 673 views
the turntable of a record player rotates at a rate of 11 1/3. A record with a radius of 15cm is being played. a punk kid throws
1. 0 answers
2. asked by kate
3. 665 views
On the net it has been suggested and my experiment it has been proven that Fructose can break down Vitamin C or atleast stop it
1. 0 answers
2. asked by Carly
3. 659 views
How many grams of oxygen can be produced by heating 10.0g of mercury (II) oxide?Sulfuric acid is added to 8.10g of magnesium,
1. 1 answer
2. asked by Beautiful
3. 656 views
I noticed that the people who asked for questions that need help with spanish have not been answered..when people who have asked
1. 0 answers
2. asked by Concerned
3. 650 views
Is anyone Studying S103-Discovering Science. On TMA 6 blocks 7-8, having a little trouble can anyone HelpRather than using
1. 0 answers
2. asked by Jon
3. 648 views
Consider a Carnot engine operating between the temperatures of 300. K and 189 K. Find the efficiency of this engine. Assume,
1. 0 answers
2. asked by Chris
3. 646 views
how many groups of birds are there and name themSince this is not my area of expertise, I searched Google under the key words
1. 0 answers
2. asked by Fatima
3. 643 views
Whats the difference between adrenaline and noradrenaline???Any help would be appreciated!!! That's a fair question. We'll
1. 0 answers
2. asked by stressed student
3. 643 views
Yesterday, I asked the question about my thesis statement for Hamlet. Heres what I wrote:Hi, I'm writing an essay on how Hamlet
1. 0 answers
2. asked by Raj
3. 643 views
how long it would take to pay off a credit card balance of $1000 if you pay the minimum of $35 a month at a flat yearly interest
1. 0 answers
2. asked by kim
3. 642 views
Sound does not travel through a vacuum. How do we know that light does?Explain how you can see ordinary nonluminous classroom
1. 1 answer
2. asked by Ron
3. 641 views
which alcohol and carboxylic acid would produce benzyl isobutyrate by Fischer esterification? and which alcohol and carboxylic
1. 0 answers
2. asked by Rob
3. 641 views
If Leah is 6 yr.s older than sister, Sue, & John is 5 yrs. older than Leah, and the total of their ages is 41. How old is Sue?
1. 0 answers
2. asked by Katie
3. 634 views
What is the difference between a refugee and an immigrant. Also, What is the solution the economic problem of hispanics? Thanks
1. 1 answer
2. asked by joe
3. 630 views
If you have a geometric alternating series, and you prove that the series is converging by doing geometric series test, and NOT
1. 0 answers
2. asked by Jin
3. 629 views
what element results if two protons and two neutrons are ejected from Radiumwhat element results if two protons and two neutrons
1. 0 answers
2. asked by Julie
3. 621 views
A machine carries a 5.0 kg package from an initial position of di = (0.50 m) i + (0.75 m) j + (0.20 m) k at t = 0 to a final
1. 0 answers
2. asked by Technoboi11
3. 618 views
I am in the process of calculating the hydrogen ion concentration in a .25litre solution of sulfuric acid,.21g of sulfuric acid
1. 0 answers
2. asked by ruby
3. 617 views
Besides human beings, what did the Egyptians embalm?Thank you for using the Jiskha Homework Help Forum. Often pets were also
1. 1 answer
2. asked by Kayla
3. 617 views
By when had Rome expanded include Hispania(Spain)http://en.wikipedia.org/wiki/Image:RomanEmpire_Phases.png from
1. 0 answers
2. asked by private
3. 616 views
Can someone check my answers.-For each of the following eight situations, select the best answer concerning accounting for
1. 0 answers
2. asked by stumped
3. 615 views
proof by mathmatical induction that the sum of the first n natural numbers is equal n(n+1)/2It's true for n = 1. Assume that it
1. 0 answers
2. asked by Jennie
3. 614 views
Using all of the letters A to Z only once complete the following words.*e*er **eue **o ma* *p*a*e* *erso* ***k*am*on *ouse *a*
1. 0 answers
2. asked by Ameen
3. 611 views
What's the significance of water in Toni Morrison's Beloved? How can you relate that to the importance of history in the novel?T
1. 2 answers
2. asked by Brown
3. 604 views
Is this right:if it still needs more can someone help me out what else can i say....thankswhy are polynomials important?
1. 0 answers
2. asked by jas20
3. 596 views
why did the british think their military forces were superior to those of the americans?To which time period or war are you
1. 0 answers
2. asked by jasmina
3. 595 views
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
1. 0 answers
2. asked by margie
3. 590 views
How do you factor a polynomial?Using the FOIL method works with some simple polynomials. FOIL stands for First, Outside, Inside,
1. 0 answers
2. asked by Christian
3. 590 views
I nead help getting info on Herman Melville for a report for Enlish.Please Help. Does anyone Know about Herman Melville at all?
1. 0 answers
2. asked by Mike
3. 585 views
I require assistance with the drawing of the lewis structures for hydrogen cyanide and cyanogen. I have already drawn the
1. 0 answers
2. asked by ruby
3. 585 views
explain why a substancew with a network structure has a high melting point ?High is a relative term. What is high? coudnt u give
1. 0 answers
2. asked by vanessa
3. 584 views
My dog all of a sudden has a small bright red lump on her front left leg. I have no idea what it is, and I'm kind of worried. It
1. 0 answers
2. asked by Jenna
3. 582 views
If our Sun was Population II, the solar system would contain no ________ planets.Since this is not my area of expertise, I
1. 1 answer
2. asked by Liz
3. 577 views
Each element has a different set of energy levels. Use this fact to explain why the colour of the light emitted by an element in
1. 0 answers
2. asked by Jaime
3. 573 views
How did the Spanish-American War change the role of the United States in the world?Im stuck....
1. 0 answers
2. asked by Dallas
3. 571 views
why dosnt the commutitive property work with subtraction and division?For subtraction : Because a - b and b - a are not the
1. 0 answers
2. asked by sierra
3. 564 views
im running out of info. it's all running together. HELP!!!Since this is not my area of expertise, I searched Google under the
1. 0 answers
2. asked by Anonymous
3. 543 views
describe the difference between a ball-and-stck model and a space-filling model of a compound ?Vanessa--Have you seen a
1. 0 answers
2. asked by vanessa
3. 539 views
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
1. 0 answers
2. asked by margie
3. 528 views
What volume of helium would be in a baloon the size of a soft drink?The same volume that the soft drink occupies.
1. 3 answers
2. asked by Matt
3. 515 views
can someone help me if possible simplifying this fraction more(2(x-5))/((x+3)(x-3)(x+1)) It wont simplify any more. okay thank
1. 0 answers
2. asked by jas20
3. 504 views
My questin is If r=5z then 15z=3y, then r=I just can't seem to determine how to set this problem up. I tried subsutition but
1. 0 answers
2. asked by Katie
3. 483 views
Solve the systemx^2+(y-3)^2-9=0 x+y-1=0 Substitute 1-x for y in the first equation. x^2 + (x+2)^2 = 9 4x + 4 = 9 Take it from
1. 0 answers
2. asked by Angie
3. 469 views
ok, but what happened to the letters? don't they remain part of the problem? also, how does 15k/20k reduce to 4/5? thanks for
1. 0 answers
2. asked by Joshua
3. 466 views
Which element results if 2protons and 2neutrons with the atomic number 88 and mass number 226? Show workingsHelp please Since
1. 0 answers
2. asked by Fraser
3. 466 views
hi, how would we find the y intercept , given slope of 11/2.54 and points (5,1.49). can you show me the steps so i can solve it.
1. 0 answers
2. asked by gorden
3. 464 views
THE STUDENTS IN MR HENLYS CLASS PREDICTED THAT IF THEY EACH ROLLED A DIE 90 TIMES THE RESULT OF 1 OUT OF EVERY 6 ROLLS WOULD BE
1. 0 answers
2. asked by Jamee
3. 439 views
The resolution of metal poor red giants in the core of the Andromeda Galaxy by Walter Baade in the 1940s led to the discovery of
1. 0 answers
2. asked by Liz
3. 437 views
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
1. 0 answers
2. asked by margie
3. 415 views
What's 1/3 of 12 Marbles?What's 2/3 of 12 Marbles? If 8 Children go on a picnic, 6/8 of them wear jeans. How many wear jeans?
1. 0 answers
2. asked by Shaleece
3. 409 views
write the equation of line passing through (6,-10)and (6,-6)I notice that as x is constant, y changes, so it must be a vertical
1. 0 answers
2. asked by Tony
3. 405 views
sqrt(1+tan x)-sqrt(1+sin x)lim all divided by x^3 x-->0
1. 0 answers
2. asked by Matt
3. 403 views
can anyone simplify and multiply the rational expressions 10m/11p x 44p/20k x 15k/8m? and then explain it to me?have patience.
1. 0 answers
2. asked by Joshua
3. 398 views
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
1. 0 answers
2. asked by margie
3. 387 views
Hi, just a short question. How do i find the x intercepts for the equation y=-2x^3+1 ?I tried to let y equal zero but i could
1. 0 answers
2. asked by elle
3. 387 views
what is the equation of a line that passes through point (0,-9) with a slope of 6(y - (-9))/(x - 0) = 6 (y+9)/x = 6 y = __ x +
1. 0 answers
2. asked by Tony
3. 384 views
Does anyone here know how to computeH^3(G,Z) where G is the klein 4 group?
1. 0 answers
2. asked by Bibi
3. 372 views
what are the top five enviromental factors that help organizations achieve optimal function? What are examples of them?
1. 0 answers
2. asked by Anonymous
3. 343 views

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