Saturday

February 13, 2016
Total # Posts: 1,649

**Calculs**

(tan x + sqrt 3)(2 cos x + 1)=0
*November 19, 2007*

**Calculs**

Solve the equation on the interval [ 0, 2 pi] (tan x + ?3)(2cos x + 1) = 0
*November 19, 2007*

**Math**

I don't doubt you it doesn't make sense to me either but those are the choices I'm given let me look into this a little more and I'll re-post if need be
*November 19, 2007*

**Math**

My options are -1/2 sqrt2 + sqrt2 1/2 sqrt2 + sqrt-2 -1/2 sqrt2 - sqrt2 1/2 sqrt2 + sqrt2
*November 19, 2007*

**Calculus**

Thanks I'm sorry for not being more specific I'm new to this site. Thanks for your help.
*November 19, 2007*

**Calulus**

Solve the triangle.Round lenghts to the nearest tenth and angle measurements to the nearest degree. B = 43 C = 107 B = 14
*November 19, 2007*

**calculus**

3logy^3 + log y^2 I had this on a test I put logy^18 was the answer 3 logy^6 ?
*November 18, 2007*

**calculus**

Use the even odd properties to find the exact value of the expression. It may be helpful to draw the unit circle graph sin(-pi)
*November 18, 2007*

**human resources**

I'm having a rough time understanding this assignment. Can someone explain it to me in a way that I might be able to understand it more clearly? Submit a response recommendation analysis of 200-300 words of how large firms and small firms could utilize change management ...
*November 15, 2007*

**Chemistry - DrBob222**

what about NaOH+NO ?
*November 11, 2007*

**english**

oh thank-you very much..i've been looking for a while on the computer for a good picture of this but i never came across this one
*November 10, 2007*

**english**

can someone help me finda picture or painting where a man puts his coat over a puddle so a woman does not have to walk across it
*November 10, 2007*

**history**

list all the ways Julias Caesar worked to gain political power in Rome. =] thanks!
*November 8, 2007*

**history**

Describe why the senate was so important to Rome. =] thanks
*November 8, 2007*

**history**

okay thank you
*November 8, 2007*

**history**

Identify some greek influences on roman culture. =] thank you
*November 8, 2007*

**history**

thanks for the help =]
*November 8, 2007*

**history**

list some advantages to Rome's location. thanks for the help =]
*November 8, 2007*

**current events (cont)**

how is the situation in Ireland with the Protestants and catholics different in term of nationalism when compared to the conflict in Israel/Palestine?
*November 6, 2007*

**current events**

Ms. Sue the answer you posted really helps! Thanks as well to GuruBlue and Anonymous.
*November 6, 2007*

**current events**

Can someone explain what is currently going on in Israel today and their relationship with the Palestinians?
*November 6, 2007*

**social studies**

What is the longitude and latitude of the Kuwait Towers?
*November 4, 2007*

**Japanese (extramural: linguistics/culture/history)**

hey joshua , yep i have the same problem, i can't find the history of a maga picture any help from anyone plz...?????
*November 3, 2007*

**another bio ?**

what direction along a DNA strand does DNA polymerase add base pairs
*November 1, 2007*

**biology**

When does DNA synthesis occur? What is meant by leading and lagging strands?
*November 1, 2007*

**current events..help again please!**

regarding the situation in northern Ireland, what do you think is the most probable outcome regarding the situation between the Protestants and the Catholics? The Protestants want to remain apart of the United Kingdom but the Catholics want to unite with Ireland.
*October 31, 2007*

**history, current events**

in todays world can you name a conflict that is presently occurring in which a nation would like to expand into another nation or obtain more territory which has caused a conflict (Expansionist Nationalism)
*October 31, 2007*

**current history**

can anyone name two contrasting conflicts that have to do with nationalism around the world ( ex. one conflict could be between teo religious groups.....)
*October 30, 2007*

**English**

In what stories have characters claim the accomplishments of another?
*October 29, 2007*

** honors Algerba**

what is hypotenuse triangle
*October 27, 2007*

**history**

what are three reasons to how nationalism developed fifferently in eastern and western europe?
*October 25, 2007*

**math**

Hi, I need help finding a data of women's pay over the year. Is there a website you could point me to? THanks!
*October 20, 2007*

**AP CHEMISTRY**

STATE THE HEISENBERG UNCERTAINTY PRINCIPLE AS IT RELATED TO THE DETERMINING THE POSITION AND MOMENTUM OF AN OBJECT.
*October 18, 2007*

**world history**

im not aloud to use wikipeida
*October 18, 2007*

**world history**

what were all of Isaac Newton's inventions or discoveries?
*October 18, 2007*

**world history**

who is isaac newton?
*October 18, 2007*

**Math**

There are three landscapers that are instructed to prune a tree. One of them alone can complete the task in 30 minutes, another is twice as fast as the first landscaper, and the thrid is a quarter as fast as the first two landscapers working together. Determine the time (in ...
*October 15, 2007*

**biology**

In tomatoes, red fruit is dominant to yellow fruit color. A farmer has plants that produce either red or yellow tomatoes. he has signed a contract with a large seed company to provide pure red dees and pure yellow seeds. the do not want hybrids. How can the farmer determine if...
*October 15, 2007*

**Spanish**

How do you say "ruins" in spanish [by ruins I mean the ancient Roman ruins, the physical ruings of great buildings, not "collapse"] ? I haven't been able to find a good spanish translation.
*October 10, 2007*

**glucose monitors**

In my class, we have to research on glucose monitors and pick two disadvantages and find a way to solve those disadvantages. The teachers know the students are not expert on designing a new product but using creativity, we have to come up with solutions For example: I put that...
*October 9, 2007*

**Physics**

A 50.0-kg student climbs a 5.00-m-long rope and stops at the top. (a) What must her average speed be in order to match the power output of a 200 W light bulb? (b) How much work does she do?
*October 7, 2007*

**Physics**

I keep getting a number that is very large for (a). Is mg 70kg * 9.81?
*October 7, 2007*

**Physics**

A skier of mass 70 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to pull him 60m up a 30 degree slope (assumed frictionless) at a constant speed of 2.0 m/s? (b) What power must a motor have to perform this task?
*October 7, 2007*

**sorry it's me but i need help in english.**

Living in the U.S. now for almost nine years has made me adapt to the life and culture here. Despite the fact I still miss my family in India, I’m content with my life in America so far. I look forward to going to school every day, I love living in my house, and I like ...
*October 4, 2007*

**english continued part 3**

Prior to my arrival to America, I thought life here was going to be hard to adjust and I was right. The environment was too quiet and empty, learning to speak English was difficult, and getting used to going to school was a challenge. However, I overcame the obstacles by ...
*October 3, 2007*

**english continued part 3**

Prior to my arrival to America, I thought life here was going to be hard to adjust and I was right. The environment was too quiet and empty, learning to speak English was difficult, and getting used to going to school was a challenge. However, I overcame the obstacles by ...
*October 3, 2007*

**english continued part 3**

Do you need to make it longer or is it time to tie it together? As someone who moved to the exact opposite - from the suburbs of Cincinnati to a crappy, noise-filled small town in Taiwan where people can't drive, I understood this completely and loved the essay. I think ...
*October 3, 2007*

**help please english part 2**

Living in the U.S. now for almost nine years has made me adapt to the life and culture here. Despite the fact I still miss my family in India, I’m enjoying my life in America so far. I look forward to going to school every day, I love living in my house, and I like ...
*October 3, 2007*

**help please english**

As an eight-year-old-girl, it was my first time on an airplane, traveling from my home in India to the United States with my mom and brother. I sat on the airplane for seventeen hours and felt restless just sitting in my seat. I was wrapped in my blanket and was watching a ...
*October 3, 2007*

**please revise english**

Going to a new school after moving to a new country can be exciting, but also overwhelming and confusing. I had just finished my first grade in India, so when I arrived in U.S.A., I was going to attend second grade. I remember my first day in school and my mom had just dropped...
*October 3, 2007*

**please revise**

Going to a new school after moving to a new country can be exciting, but also overwhelming and confusing. I had just finished my first grade in India, so when I arrived in U.S.A., I was going to attend second grade. I remember my first day in school and my mom had just dropped...
*October 3, 2007*

**u.s. government**

what do you think. should the u.s lead to nation building efforts around the world?
*October 2, 2007*

**Chemisty**

THANK YOU SO MUCH....I have thought for days to this and it just wasnt clicking to me... thanks so much
*October 1, 2007*

**Chemisty**

why do you use water in calorimeters?
*October 1, 2007*

**science(please help)**

so owuld it flow from the north canyon to nankoweap???
*September 30, 2007*

**science(please help)**

which way does the colorado river flow, from the north canyon to the nankoweap or vice versa? how do u know?? i need this by tomorrow
*September 30, 2007*

**Math**

my daughter is working on a math problem called factor capture have any idea as to the rules for understanding it
*September 25, 2007*

**Math**

My son is in third grade. He is suppose to make a place value chart for homework. He can't explain to me what he needs to do. He said at the bottom has to be ones tens hundreds thousands and then he needs to cut squares out. Any ideas?
*September 18, 2007*

**Calculus**

We're learning about different kinds of functions and I don't really understand the difference between rational and algebraic functions. I know that rational functions are functions that are a ratio of two polynomials, and algebraic functions are any functions that can...
*September 13, 2007*

**Algebra**

I'm really sorry I couldn't help!
*September 11, 2007*

**Algebra**

ok, that is really confusing! minus equals minus plus? that doesn't make sense!
*September 11, 2007*

**math**

anyone there?!?!?
*September 11, 2007*

**math**

hello?
*September 11, 2007*

**math**

I AM SO CONFUSED!!!! Does anyone know how to figure out positive 5 x 6m????!!??!?!?!?
*September 11, 2007*

**calculus**

Find an expression for the function whose graph is the given curve. a) The bottom half of the parabola x+(y-1)^2=0 b) The top half of the circle (x-1)^2 + y^2= 0 I think I have a vague idea of what I need to have in my expression for b; I know it's a circle with a center (...
*September 11, 2007*

**maths**

please can some one help me..? Part a - O is the centre of the circle, and P , Q are points on the circumference of the circle, with the angle POQ being a right angle. The radius of the circle is 3 cm. Choose the option that is the area of the smaller sector POQ, correct to 3 ...
*September 11, 2007*

**calculus/graphing calculator help**

We were given a worksheet on modifying functions with the equation y=Af(Bx+C)+D. The first function we're given is y1=f(x)= x + x^2 and we're supposed to graph it. Then we're told to graph y2=2f(x), and we're given instructions on how to enter it [y2=2 ->...
*September 9, 2007*

**Biology**

What type of tissue are neurons?
*September 4, 2007*

**Biology**

What is the difference between a simple colony and a complex colony?
*September 4, 2007*

**Spanish**

*facilitated
*August 31, 2007*

**Spanish**

I've actually cleaned up my translation a bit, so it reads more like: The collapse of the Roman empire facilitations the invasion of Spain from 409 d.C... but I'm still having trouble with the second half.
*August 31, 2007*

**Spanish**

Can someone help me translate this sentence? It was in a packet we were given for reading but I don't think I'm understanding it correctly. La crisis del Imperio Romano facilitó la invasión de España a partir del año 409 d.C., por varios ...
*August 31, 2007*

**calculus**

We were asked to solve the problem 1/x < 4. I solved it like so: 1<4x 1/4<x and wrote my answer in interval notation as (1/4, infinity). However, the answer in the back of my book said the answer was the union between (negative infinity, 0) and (1/4, infinity). How do...
*August 31, 2007*

**science**

What is the effect of an insoluble impurity, such as sodium sulfate, on the observed melting point of a compound?
*August 15, 2007*

**bio**

Under what situation(s) can a single environment be both coarse-grained and fine-grained. I was thinking in an envirnomental where many organisms exist, such as a field. To a herbivorous insect, it would be course-grained while to a cow or horse it would be fine-grained. But ...
*July 30, 2007*

**Government**

can federal government abuse its power?
*June 15, 2007*

**math (domain)**

whats the domain and range of sine and tan? The sine ranges from -1 to +1. Its domain is all postive and negative numbers. I will be happy to critique your thinking on tangent.
*June 6, 2007*

**Chemistry**

Describe the apparent relationship between H30+ and OH- concentrations when an endpoint is reached in an acid-base titration
*May 30, 2007*

**Physics Thanks**

Please help... Let g be the acceleration due to gravity at the surface of a planet of radius R. Which of the following is a dimensionally correct formula for the minimum kinetic energy K that a projectile of mass m must have at the planet's surface if the projectile is to ...
*May 13, 2007*

**Physics Work and Energy, Momentum**

Let g be the acceleration due to gravity at the surface of a planet of radius R. Which of the following is a dimensionally correct formula for the minimum kinetic energy K that a projectile of mass m must have at the planet's surface if the projectile is to escape from the...
*May 13, 2007*

**Physics HELP**

1.If a particle moves in a plane so that its position is described by the functions x=A*cos(wT) and y=A*sin(wT), the particle is ( w-angular velocity, T-period) A) moving with constant speed along a circle B) moving with a varying speed along a circle Thanx! Note that x^2 + y^...
*May 13, 2007*

**reading**

sentense with 11 elephant Please keep in mind that we don't do students' homework for them. Once you write a sentence, please re-post and someone here will let you know if you're right or need to work on it some more. =)
*May 9, 2007*

**Science**

state the number of electrons either lost or gained in forming each ion. Br- As3-
*April 25, 2007*

**ss**

The british army was trapped at yorktown by? a.an army led by friedrich von stueben b.a freet of spanish warships c. a fleet of french warships d. guerella fighters led by francis marion. Isnt it C I want this paper to be correct in all the answers as much as possible please ...
*April 23, 2007*

**s.s**

Which statement BEST describes the mood of the continental congress in May 1775? a. few delegates wanted a formal break all ties with britian. b.most delegates wanted to break all ties with britian. c.A majority of delegates believed that war with britian was inevitable. d....
*April 23, 2007*

**S.S**

The question is Wich statement BEST describes the mood of the continental congress in may 1775? a.Few delegates wanted a formal break with britian. b.most delegates wanted to break all ties with britian. c.a majority of delegates believed that war with britian was inevitable. ...
*April 20, 2007*

**maths**

Compass bearings of a carin are taken from two points A and B, 400 m apart, along a strsight north-south path, A being due north of B. the bearings of the carin from A and B are 110 degrees and 80 degrees, respectively. choose the two options which give the distances from A ...
*April 19, 2007*

**maths**

An investor invests £20 000 over three years in a scheme which offers compound interest of 4.5%, compound annually. Which one option gives the amount of money in the scheme after 3 years, rounded to the nearest pound? A. £22 891 B. £22 700 C. £22 833 D...
*April 18, 2007*

**maths**

Which three options are true about motion in a straight line. A. A particle which moves at an increasing velocity has a constant acceleration. B. If two particles always have the same velocity as each other, their separation does not change. C. A particle which has zero ...
*April 18, 2007*

**calc.**

find the sum of the series of (-2)^n/3^n+1. This is an alternating series... what if we rewrite it as an= (1/3)* (-2/3)^(n) Divide any nth term by the n-1 term and see if you get a ratio term r. This might be a geometric series.
*April 17, 2007*

**maths**

which three statements are true? a) if x= -10^4 then log 10 = -4 b)if x= 2^8 then log 2x = 8 c) log2 2= 4 d) if x= 3 then log10 3=x e) log 10 256-2log 10 a/log 10 b f)log 10 (a-b)= log 10 a/log 10 b g) the gradient of the graph of y= 2x^x at x= 2 is 2e^e h) the gradient of the...
*April 17, 2007*

**calc**

determine whethere the sequence a(n)=nsinn/n^3 converges or diverges. Explain why it does or does not converge. If it converges find the limit. Sin(n) is always between -1 and 1. So, you have: -1/n^2 < a(n) < 1/n^2 Both the lower bound and the upper bound converge to ...
*April 17, 2007*

**calc**

for the parametric curve defined by x=3-2t^2 and y=5-2t ...sketch the curve using the parametric equation to plot of the point. use an arrow to indicate the direction of the curve for o<t<1. Find an equation for the line tangent to the curve at the point where t=-1. x=3...
*April 17, 2007*

**Social Studies**

I have to do a project and I can't get motivated to start!! I want a good grade, but I don't know how to convince myself to get started!! PLEASE HELP!!!!!!! Sometimes motivation just doesn't come. You can't wait until you feel like doing it. I urge you to start...
*April 15, 2007*

**Calculus**

find the equation for an ellipse that satisfies the following condition Vertices at (-3,1) and (9,1) one focus at (7,1) I will assume you know the general equation of an ellipse and its properties in terms of a,b and c. the centre would be the midpoint of (-3,1) and (9,1) ...
*April 14, 2007*

**Calculus**

Determine whether the sequence A(n)=nsinn/n^3 converges or diverges. Eplain why it does or does not converge. It is converges find the limit
*April 14, 2007*

**Math**

Evaluate. (15 – 5) ÷ [(12 ÷ 2 • 2) – 2] I think the answer is 10. Is this correct. Correct. Please Excuse My Dear Aunt Sally applies.
*April 8, 2007*

**Math**

make a star. each intersection and vertex is a tree.
*April 3, 2007*

**Science**

We are having a science test soon and there is a question on the studie guide that I am not sure about. What is the differance between Michanical advantage and Ideal Michanical advantage? Isnt it frictions. Yep you are right it is friction
*April 2, 2007*

**calculus**

The integral of 3x^2 - 4x + 1 equals x^3 - 2x^2 + x. Is this always correct? Where is the constant of interation? wouldn't x^3 - 2x^2 + x + 23 also be correct?
*March 31, 2007*