Wednesday

November 26, 2014

November 26, 2014

Total # Posts: 1,662

**Calculus**

position function is x(t)=(t-1)^3 (2t-3) how do you find the velocity of the particle at nay time when t is greater or equal to 0? i got the derivative equation (6t-9)(t-1)^2 + 2(t-1)^3 but that is for all t.
*October 28, 2008*

**Calculus (Answer Check)**

A particle moves along the x-axis so that its velocity at time t, 0(less than or equal)t(greater or equal to)5 is given by v(t)=3(t-1)(t-3). at time t=2 the position of the particle is x(2)=0. 1. find the minimum acceleration of the particle 2. find the total distance traveled...
*October 27, 2008*

**Calculus (Answer Check)**

A particle moves along the x-axis so that its velocity at time t, 0(less than or equal)t(greater or equal to)5 is given by v(t)=3(t-1)(t-3). at time t=2 the position of the particle is x(2)=0. 1. find the minimum acceleration of the particle 2. find the total distance ...
*October 27, 2008*

**Calculus (Answer Check)**

Are my answers right? If they are wrong you dont have to tell me how to do it its okay =) A particle starts at time t=0 and moves along the x-axis so that its position at any time t(greater or equal to) 0 is given by x(t)=(t-1)^3 (2t-3) 1.find the velocity of the particle at ...
*October 27, 2008*

**math**

a man is building a studio that has a circular base. the interior of studio has a diameter of 40 feet. what is the area of the floor space?
*October 26, 2008*

**5th grade social studies**

Forest,rivers,mountains,and oceans because they grow vegetables and drink water
*October 23, 2008*

**5th grade social studeis**

What types of geographical features helped settlements grow and succed.why?
*October 23, 2008*

**math**

skip counting on the hundred chart the question is What patterns do you see with skip counts by 10's and 3's?
*October 22, 2008*

**8th grade**

Speculate about how the invention of the microscope might have helped doctors to understand what caused diseases?
*October 21, 2008*

**physics**

A boxcar of mass 200 tons at rest becomes uncoupled on a 2.5 degree grade. If the track is considered to be frictionless, what speed does the boxcar have after 10 seconds?
*October 20, 2008*

**english**

One of the two passages below follows the old-new contract. Identify it. I think it is passage one can anyone help verify if I am correct 1. The old/new contract is another principle for writing clear closed-form prose. Beginning your sentences with something old – ...
*October 19, 2008*

**english**

What is the topic sentence I think it is sentence 3 please let me know if you think it is as well Voice mail is usually part of your firm’s phone system. It is a way to digitally record messages, and it allows “random access” so you can skip, delete, save, and ...
*October 19, 2008*

**enviromental science**

what are three ocean resource problems
*October 19, 2008*

**physics**

how much time does it take for a student running t an average speed or 5.00m/s to cover a distance of 2.00km?
*October 17, 2008*

**6th grade**

what is an organism and how do i do a report on how to explain one
*October 14, 2008*

**math**

trying to figure it out so I can help my 5th grade son figure it out. No textbooks to help parents
*October 6, 2008*

**math**

Make up a set of at least 12 numbers that have the following landmarks. Maximum: 8 Range: 6 Mode: 6 Median: 5
*October 6, 2008*

**Calculus**

Using the derivative definition of f ‘ (x) = (f (x+h) – f (x)) / (h) find the derivatives of the following… 1. f(x) = (2x-1) / (x+2) 2. f(x) = sqrt (3x-1) 3. f(x) = 3x^4 my answers were: 1. –x+3 2. (3) / [2(sqrt(3x-1))] 3. 12x^3 are my answers right?
*October 4, 2008*

**english**

When I want to say in a sentence: The word unprecedented means..... does unprecedented have to be in italics, quotes, or is it fine the way it is?
*October 1, 2008*

**chemistry/math**

If aluminum has a density of 2.78 g/ml, how much space would 32 grams occupy?
*September 29, 2008*

**biology**

Would two nucleotides be sufficient to provide enough codons to code for all 20 amino acids and why? how many amino acids could be coded for by codons containing only two nucleotides? Will three nucleotides per codon work and why or why not?
*September 29, 2008*

**British Literature, **

I don't see how those examples fit the deffenition of satan being a round character either. It doesnt show that hes changed.. I mean the story is all around more indepth about him but those quotes to show that.
*September 28, 2008*

**pre calculus**

NAdia has 7 more nickels than dean has dimes. If dean gives nadia 4 of his dimes, then dean will have the same value of money as nadia. how much money do they have together (nadia only has nickels and dean only has dimes) ned has nickels, dick has dimes, and quincy has ...
*September 28, 2008*

**math**

If Mark types 79 words per minute, and he types for 44 minutes, it looks like this: 79 words per minute x 44 minutes = 3476 words in 44 minutes. (Which is the answer)
*September 25, 2008*

**4th grade English**

If you write: "Gorillas are shy, so most of them never fight", it makes sense. They're shy, therefore they don't fight. If you write: "Gorillas are shy, but most of them never fight", it implies that being shy would make them more likely to fight. ...
*September 25, 2008*

**math**

If Summer grades 25 papers in 30 minutes, and there are 4 half-hours in two hours, multiply 25x4= 100. Summer can grade 100 math papers in 2 hours. Larry can grade 22 papers in 20 minutes. 60 minutes (one hour) is three times twenty minutes, so two hours is six (doubling the ...
*September 25, 2008*

**Chemistry**

That sounds about right. K is more unstable, and reacts more readily.
*September 24, 2008*

**dictionary**

noun
*September 24, 2008*

**Calc 1 - Factoring??**

Solve the inequality. Express the solution sets as intervals or unions of intervals and show them on the real line. Use the result (square-root of a^2) = |a| as appropriate. (x+3)^2 < 2
*September 24, 2008*

**College Sophmore**

x=The Width of the Grand Canyon 381 m = x/76 This simplifies to 381 meters multiplied by 76 = 28956 meters wide.
*September 24, 2008*

**arithmetic**

1+2+3+4+5+6=21 So the number is 123456.
*September 22, 2008*

**spell**

Is the following words nouns/pronouns or verbs. They're you've weren't needn't there'd they've mustn't what'll doesn't hadn't
*September 22, 2008*

**gemotry**

Eduardo owned 6/7 of a family business. He sold 1/5 of the business to his son. wat portion of the business does he still own
*September 21, 2008*

**geog- still**

sorry to be a pain but it still doesn`t answer the question . my homework is a wordsearch and i only have clues its to do with diversity in the uk. the only 2 i can`t find is sikh temples and muslim mosques i can`t find anything in the wordsearch that matches . im so stuck ive...
*September 20, 2008*

**geog- still**

sorry to be a pain but it still doesn`t answer the question . my homework is a wordsearch and i only have clues its to do with diversity in the uk. the only 2 i can`t find is sikh temples and muslim mosques i can`t find anything in the wordsearch that matches . im so stuck ive...
*September 20, 2008*

**geography year 8**

my homework is diversity in the uk . i have a wordsearch and need to find people who have come to britain. 1/ gaelic dance - i think its jig or irish 2/ synagogues - jewish 3/ churches constructed after conquest in 1066 - Normans 4/ chop suey from a soho restaurant - chinese 5...
*September 20, 2008*

**math**

1. give an example of an absolute value inequality whose solution set is the empty set 2. explain why \x+2\ is greater than or = to -4 has all real numbers as its solution set. please help
*September 16, 2008*

**math**

can you please help me?
*September 16, 2008*

**math**

1. give an example of an absolute value inequality whose solution set is the empty set 2. explain why \x+2\ is greater than or = to -4 has all real numbers as its solution set.
*September 16, 2008*

**ecology**

thank you soooo much!!!
*September 14, 2008*

**ecology**

Why are 2nd order consumers more likely to be affected by a toxin than 1st order concumers?
*September 14, 2008*

**human services**

compare and contrast program planning and program evaluations in human service agency's.
*September 14, 2008*

**Statistics**

Hello I need help solving a statistics problem and have no idea where to start. Can anyone help? In a recent national survey, the mean weekly allowance for a nine-year-old child from his or her parents was reported to be $3.65. A random sample of 45 nine-year-olds in ...
*September 11, 2008*

**social studies**

I need a defination for "Direct Democracy"
*September 10, 2008*

**Art**

What is the type of artist that used Rhythm the most?
*September 8, 2008*

**english**

i have to write a ballad. The 1st and 3rd lines need to be in iambic tetrameter and 2nd and 4th in iambic trimeter. is this right? Today I told my friend about The dream I had one night. “This red rose grew alone In a small lot without sunlight.”
*September 4, 2008*

**12th grade government/economics**

should the u.s move to an electonic currency and remove paper currency
*August 24, 2008*

**Poetry**

If this be error and upon me proved, I never writ, nor no man ever loved. These lines are an example of a/an
*August 21, 2008*

**maths**

Would y=2 be the equation for the line that has the co-ordinates (0, 2) and is parallel to the x-axis? im not exactly sure, please help and explain?
*August 19, 2008*

**catering**

it's a contract isn't it?
*August 18, 2008*

**Calculus**

for f(x) = 2+x : Domain: (negative infinity to -3] Range: (-infinity to -1] f(x) = x^2 : Domain: (-3,-1) Range: (9,1) f(x) = 6 : Domain: [-3,-1] Range: [6] i don't know how to put them all together though. is this right?
*August 13, 2008*

**Calculus**

The following information is given, f(x) = 2+x x<(less than or equal to) -3 f(x) = x^2 x > -3 , x < 1 f(x) = 6 1 < (less than or equal to) x I graphed it, but i don't know how to find the domain and range.
*August 13, 2008*

**science need info please**

what I need to do
*July 25, 2008*

**Law and Ethics**

I see alot of you arewith Penn Foster, as well as myself. I have struggled as well on some of these questions. Just be careful on the answers you choose, make sure you do search other websites and resources. I have been told some answers are not correct and a friend of mine ...
*July 20, 2008*

**History**

why did African Americans in the South lose many of their civil rights until 1950s and 1960s? please help me
*July 8, 2008*

**Biology**

Find an angiosperm that has modified leaves, stems, roots or flowers that do not function in a normal manner? Example: Claifornia Barrel Cactus has spines in place of leaves to reduce water loss.
*July 7, 2008*

**critical thinking**

When you encounter the word "since" in a sentence you should generally conclude that it is acting as which of the following
*July 6, 2008*

**health**

what population or groups were most adversely affected by deinstitutionlazion?
*June 29, 2008*

**maths**

how do i make p the subject of the formula q=5/3+p
*June 20, 2008*

**Grammar**

Thanks, Writeacher. I thought the second one was correct, but for some reason it just didn't "sound" right to me :)
*June 6, 2008*

**Grammar**

Hi there, Which is correct: Your kindness, patience, encouragement and dedication *is* evident. -or- Your kindness, patience, encouragement and dedication *are* evident. Thank you! Michelle
*June 6, 2008*

**sewing**

sorry-#2 is thread clipper
*June 6, 2008*

**sewing**

#1--I'm stumped #2--thread ripper
*June 6, 2008*

**Chemistry**

nvm, PART D is correct.
*May 8, 2008*

**Chemistry**

I think the answer to part 1 is (E): Cu(s) Cu2+(aq) 2Ag+(aq) 2Ag(s)
*May 8, 2008*

**Science**

An argumentative article for the Sunday Gleaner discouraging people from hunting endangered species.
*April 7, 2008*

**math riddle ALGEBRA WITH PIZZAZZ**

Yeahh, its in a tenths situation. Thanks for the people who posted that. It really helped.;]
*April 6, 2008*

**Chemistry - Solution Stoichiometry**

A piece of nickel is placed in a beaker with 350 mL of copper (II) sulfate. Calculate the concentration of the copper (II) sulfate solution. Initial mass of nickel - 15.5 g Final mass of nickel - 11.4 g What do i do with the final and initial masses of nickel?
*April 2, 2008*

**unscramble**

C)a city
*March 19, 2008*

**physics**

if a motorboat travels at 25km/hr down a river whose velocity is 4km/hr wgat is the boats actual velocity? a. 21km/hr b. 29km/hr c. 100km/hr d. 6.2km/hr please repost the answer
*March 18, 2008*

**Algebra**

the set of values assigned to the independent variables of a function. does this help?
*March 13, 2008*

**Science**

What do elements and compounds have in common? How do they differ?
*March 12, 2008*

**french**

How do you say its 12:03. Do you say Il est midi trois. or Il est douze heures trois?
*March 11, 2008*

**Biology**

Describe four ways that plants protect themselves from environmental conditions using one example from each of the following categories: a. hormone b. tropism c. plants structure d. plant process In your answer be sure to include the specific threat and solution. Please help ...
*March 11, 2008*

**french-SraJMcGin**

What I don't get is in my text it says for noncountable food items, we use de la, du, or de l' but only for certain verbs like prendre, boire, manger, etc. For others we use le, la, les. But what if the verb is manger but the food is countable?
*March 8, 2008*

**french**

for je vais, je fais, ils vont, ils font, they sound the same don't they? how can i tell the difference?
*March 8, 2008*

**french**

We are learning about food items and I don't really get the rule of de la, du, and de l' and also the countable and non countable items. Can anyone please explain it to me?
*March 7, 2008*

**french**

why is it not la grande-mere but la grand-mere since it is feminine?
*March 5, 2008*

**math**

Thank you.
*March 5, 2008*

**math**

Hi, I have a math problem that I can't understand how to write the equation for. The question says: a ball is thrown upwards from an initial height of 20 meters at an initial velocity of 10 meters per second. Write an equation for the height (h) of the ball at time (t). ...
*March 5, 2008*

**calculus - vectors**

i don't get how that proves that |x dot y| equals the right side. can you please continue
*February 28, 2008*

**calculus - vectors**

Show that x dot y = 1/2 ( |x + y^2| - |x|^2 - |y|^2 )
*February 28, 2008*

**Math (Vectors)**

Show that x dot y = 1/2 ( |x + y^2| - |x|^2 - |y|^2 )
*February 28, 2008*

**accounting**

how do i find the net income
*February 23, 2008*

**composition**

Usually when you are ask to write about your family, do you usually have to write about yourself too?
*February 23, 2008*

**french**

what is the difference between all of these? nouveau, nouvel, nouvelle, neuf
*February 21, 2008*

**English**

what is a negative connotation and how do I make it a positive connotation?example:Traffic along Maple Street today was horrible, all because of a family of silly geese. The two words that need to be changed are horrible and silly. thanks michelle
*February 20, 2008*

**Gr. 12 Data Management**

Five different CD-Rom games: garble, trapster,zoom, bungie, and blast'em are offered as a promotion by SugrRush cereals. One game is randomly included ith each box of cereal. Determine the probability of getting all 5 games if 12 boxes are purcahsed.
*February 16, 2008*

**Math (Ughh)**

So what exactly is the defenition to Rate? Cumon is it that hard!
*February 13, 2008*

**Psychology**

Scenario: John is an 18-year-old freshman at New York University. John was the starting quarterback at his high school in a small town in Indiana. He enjoys playing sports and hanging out with friends. John has always been popular and done well in school and sports. Once he is...
*February 6, 2008*

**algebra**

How do you write the 3rd root of 88 in simplest form?
*February 3, 2008*

**Psychology**

I have to do a paper and am looking for some links for the following question:) Explain what role psychology has played in understanding and managing these health problems: cancer, cornorary heart disease, and headaches I only have to choose two.
*January 28, 2008*

**biology: the study of life**

false
*January 27, 2008*

**Basic Math**

Im so confused with these questions: which of the following numbers are composite? 0,1,15,19,23,31,49,55,59,87,91,97,103,105 A. 1,23,31,59,91 B. 15,49,55,87,91,105 c. 0,1,19,23,31,105
*January 22, 2008*

**physics**

an elecrton is placed in a uniform electric field of 232 n/c charge. if the electron is at rest at the origin of t=0 and the field is in the positive direction, what are the x and y coordinates of the electron at t=2.3 ns
*January 16, 2008*

**Science**

How do cells recycle molecules after apoptosis? Which molecules do they recycle and why?
*January 14, 2008*

**science**

What volume of helium would be in a balloon the size of a soft drink bottle?
*January 12, 2008*

**AP Biology**

This is my second one, but my last one to ask that i didn't understand IS it possible for a population's genotype frequencies to change from one generation to the next but for its gene (allele) frequencies to remain constant? Explain by providing example.
*January 7, 2008*

**AP Biology**

wait i am missing a part to it, this is the final question in complete XD i skipped a sentence The ear tuft allele in chicken is autosomal and produces feathered skin projections near the ear on each side of the head. This gene is dominant and is lethal in the homozygous state...
*January 7, 2008*

**AP Biology**

The ear tuft allele in chicken is autosomal and produces feathered skin projections near the ear on each side of the head. This gene is dominant embryos do not hatch from the egg. Assume that in a population of 6000 chickens, 2000 have no tufts, and 4000 have ear tufts. what ...
*January 7, 2008*

Pages: <<Prev | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | **15** | 16 | 17 | Next>>