Wednesday

September 3, 2014

September 3, 2014

Total # Posts: 1,328

**Calculus**

How do you do this question. f(x) = (5x-1)/(2-3x), find f^(-1)(x). The answer is supposed to be (1+2x)/(5+3x). -------------------------------------- And can you please explain this one to me. Suppose that xy^(3)+2y^(2)+xy+2x^(3) = 0. Find the general expression for dy/dx. ...
*November 5, 2008*

**Calculus**

Don't you have to do implicit differentiation?
*November 5, 2008*

**Calculus - Damon**

Thanks so much!
*November 5, 2008*

**Calculus - Damon**

Find the line which passes through the point (0, 1/4) and is tangent to the curve y=x^3 at some point. So I found the derivative which is 3x^2. Let (a, a3) be the point of tangency. 3x^2 = (a3 - 1/4)/(a-0) I'm not sure how to solve for a. Yes, the point is (0,1/4) but it&#...
*November 5, 2008*

**Calculus part 3 so sorry**

y = e^2xsin3x Find the derivative. So I used the product rule and I got sin3x(e^2x)+cos^3x(e^2x). But the actual answer is sin3x(2e^2x)+cos^3x(3e^2x) Where the the 2 and 3 before the e come from?
*November 4, 2008*

**Calculus Part 2**

y = tan(sqrtx) Find dy/dx. So I found it and I got the answer as sec^2(sqrtx) but the answer is (sec^2(sqrtx))/2(sqrtx)...why? ---------------------------------- 2) Find the line which passes through the point (0, 1/4) and is tangent to the curve y=x^3 at some point. So I ...
*November 4, 2008*

**Calculus questions..really need help, please!**

1) Find the value of the lim(x->0) ((sin5x/sin2x)-(sin3x-4x)). I have no idea where to start so if someone could start it off for me it would really help. 2) If f(x) = (2x-3)/(5x+4) then what's the inverse of f(x) So I replaced x with y x = (2y-3)/(5y-3) Now am I ...
*November 4, 2008*

**Calculus**

Can someone explain the method of implicit differentiation to me. I know that we differentiation both sides of the equation with respect to x (I don't understand what they mean by with respect to x). And then y is a function of x...I don't understand what that means. ...
*November 3, 2008*

**Calculus**

Can someone explain the method of implicit differentiation to me. I know that we differentiation both sides of the equation with respect to x (I don't understand what they mean by with respect to x). And then y is a function of x...I don't understand what that means. ...
*November 3, 2008*

**Math**

22 layers
*October 27, 2008*

**Math**

Edward H. White, the first astronaut to spend 20 minutes free-floating in space, had to wear a special suit to protect him from heat, radiation, and particles. the number of layers in his suit is the number that is the only palindrome between 12 and 30. how many layers did his...
*October 27, 2008*

**Science**

are u saying that miles are bigger than km
*October 27, 2008*

**Science**

Which of these rates of speed is the fastest? 40 km/h 28 mi/h 19 knots/h I believe it is 40 km/h am I correct?
*October 27, 2008*

**Science PLEASE, PLEASE, PLEASE ANSWER DUE TOMORROW**

My body is covered with bony plates, but i am a fish. I am male, but i take care of all my young. i can swim, but i prefer to be carried by ocean currents. i look like a familiar land animal. What am i?
*October 22, 2008*

**Verb form " to be"**

How can I introduce or teach 3rd graders how to use the Correct Verb Form of the verb "to be"? I want to tell them when to use the words: am, is, are, was, and were....
*October 21, 2008*

**US history**

ok thank you,, do you know the flaws of the anti federalist views???
*October 20, 2008*

**US history**

Do you know the flaws of the federalist views
*October 20, 2008*

**US history**

Do you know the flaws of the federalist views? haha sorry...
*October 20, 2008*

**US history**

What are the flaws of the federalist views thank you guys so much!
*October 20, 2008*

**US history**

What were the key points to the Federalist viewpoint? Flaws?
*October 20, 2008*

**US history**

what/who did the antifederalists support? (what is diff. from them and the federalist beliefs)
*October 20, 2008*

**US History**

Was there anyone missing from the constitutional convention and if so who was missing from the constitutional convention? I didnt know some people were missing. Can some explain this?
*October 20, 2008*

**Biology**

What is 8 characteristics of animals?
*October 16, 2008*

**11th grade**

1. Bruce, an appliance salesman, earns a commission of $50 for each washing machine he sells and $100 for each refrigerator. Last month he earned $500 in commissions. Find all possibilities for the number of each kind of appliance he could have sold. 2. Luis has 95 cents in ...
*October 15, 2008*

**7th grade**

Maybe just comparing the differences of the elements?
*October 9, 2008*

**math problem**

on monday Sheldon brewed 1 bottle of tonic, on tuesday he brewed 4 bottles, wednesday he brewed 9 and thursday 16. How many bottles did he brew on friday? Is it 30?? I'm 10 years old thanks
*October 9, 2008*

**Math question**

Thank you very much. Sorry
*October 9, 2008*

**Math question**

I don't understand your answer?
*October 9, 2008*

**Math question**

on monday Sheldon brewed 1 bottle of tonic, on tuesday he brewed 4 bottles, wednesday he brewed 9 and thursday 16. How many bottles did he brew on friday? Is it 30?? I'm 10 years old thanks
*October 9, 2008*

**math**

on monday he brewed i bottle of tonic tuesday he brewed 4 bottles, wed he brewed 9 and thursday 16. how many bottles did he brew on friday?
*October 9, 2008*

**6th grade**

How can you make an input output division chart
*October 8, 2008*

**Math**

1808
*October 7, 2008*

**Math**

Jefferson Davis, President of the Confederate States of America, lived a square number of years. he died in 1889. The digits of the year in which he was born sum to 17. When was Jefferson Davis Born.
*October 7, 2008*

**Science**

Javier lives in an area where there is a lot of igneous rock. What is probably near by.
*October 7, 2008*

**Science**

I do not have shape or volume. You cannot see me, but i fill any container in which i am placed. I have weight, but you cannot hold me.What am I? Is it air?
*October 7, 2008*

**Math**

By how many degrees Fahrenheit do the frezzing point and the boiling point of water differ?
*October 7, 2008*

**Science**

I can live in both fresh water and salt water. When full grown, I migrate long distaces to my place of birth. What am I?
*October 7, 2008*

**PreCalculus**

Thanks! I didn't realize it could be so easy!
*October 6, 2008*

**PreCalculus**

I'm so confused... I've always been good at math but this year I'm just not getting it. But I know i can I always get help and a REAL explanation from the people on here so... A steel drum in the shape of a right circular cylinder required to have a volume of 100 ...
*October 6, 2008*

**Science**

Cells make tissue and tissue makes what?
*October 5, 2008*

**math**

Without actually graphing it, show that the graph of the equation x^3+y=x is symmetric with respect to the origin
*October 2, 2008*

**Pre Calc**

Without actually graphing it, show that the graph of the equation x^3+y=x is symmetric with respect to the origin.
*October 2, 2008*

**Pre Calc**

simplify the expression x-4 when x is less than 4
*October 2, 2008*

**Science**

Whats an example and non-example for cardiac muscle? Thanks again
*September 30, 2008*

**Science**

Whats a characterisic for axial skeleton? Thanks
*September 30, 2008*

**Science**

Whats an example and non-example of an axial skeleton?
*September 30, 2008*

**supposed to be math**

how many u.s. patents did Thomas Edison have? The number is 93 more than the number of pounds in half a ton. so basically i just need to know how many pounds are in half a ton
*September 30, 2008*

**fifth grade**

where can light travel, but not sound?
*September 30, 2008*

**fifth grade**

thanks
*September 30, 2008*

**fifth grade**

how many grams in a lb.
*September 30, 2008*

**science**

thanks
*September 30, 2008*

**science**

a cup of coffee, a 10 gallon aquarium, and a bottle of ginger ale were on the same table. on which container was there the greatest amount of air pressure
*September 30, 2008*

**Science**

thanks so much
*September 30, 2008*

**Science**

what is the largest organ human beings have
*September 30, 2008*

**English**

thank u greatly apreciated
*September 30, 2008*

**English**

what is a guide word and an entry word on a dictionary page. the one that i'm stuck on is what is a guide word
*September 30, 2008*

**math**

ok ya that could work. thanks ms sue!:)
*September 28, 2008*

**math**

im sorry that's what it says in my book its my last question. i know it doesn't make sense but tom im gonna get in trouble for not doing it, and there's no answer in the back of the book either for this one so im dead. that's exactly what it says i read it over.
*September 28, 2008*

**math**

sorry i wrote it wrong: Can you use a proportion to solve any ratio problem? if your answer is yes,which ratio problem would you not use a proportion to solve? if your answer in no, which ratio problem could you not use a proportion to solve?
*September 28, 2008*

**math**

Can you use a proportion to solve any ratio problem? If your answer is yes, which ratio problem would you not use a proportion to solve? if your answer is no, which ratio problem would you be able to solve?
*September 28, 2008*

**math**

thank u. :)
*September 28, 2008*

**math**

how would u do 60% of 65?
*September 28, 2008*

**Math**

its just at school for questions i can't ask for help, im fine with homework and all because ur here to explain but i don't have anyone right by my side for the tests. On the math tests the questions are really weird and stuff that wasnt even in our textbooks.
*September 28, 2008*

**Math**

lol ur so awesome!! im not so sure i did so well on my test last week though. i depended on u for all my homework, and for the test i had no help and i was frustrated. :(
*September 28, 2008*

**Math**

thanks Ms sue ur the best teacher ever! im for sure getting great in math this term! :D
*September 28, 2008*

**anatomy**

C- left common cartid artery It may be helpful to think of the aorta as a big hose coming out of the heart to supply the different parts of the body with oxygenated blood, that is fresh and high in oxygen. As that hose (Aorta) leaves the left ventricle it first gives a branch ...
*September 28, 2008*

**language arts**

I have to put together and present a strategy that is effective in the teaching of language arts at a specific grade level. What would a good idea be for around the grade 2 level? and why is it important?
*September 27, 2008*

**health care**

WATCH THE MOVIE BY MICHEAL MOORE! ITS GOOD but then again biased- but you can take your own views out of it!
*September 27, 2008*

**math**

n=30
*September 23, 2008*

**english**

nothing
*September 23, 2008*

**Science**

I grew in a cave, but i'm not alive. i began as water and minerals, but now i am solid. i grow upwards, but i never see the sky. What am i?
*September 23, 2008*

**math**

you take 10x10=100x10=1,000 then u take 1,000x500=500,000
*September 23, 2008*

**8th grade Social Studies**

hello
*September 20, 2008*

**Descriptive Writing**

Colby gave her Romeo a lecture for the mean comment he made about her in front of his friends. Is this a simile, metaphor, personification or hyperbole?
*September 11, 2008*

**science**

What happens when you rub and ebonite stick with a wool cloth?
*September 9, 2008*

**Algebra**

I'm having trouble with inequalities. Basically my problem is about which way the sign goes. Here's an example.. X(X+1)>2 so then it becomes X^2 + X>2 Correct? Then X^2 + X - 2>0 then factor so it becomes (X+2)(X-1)>0 And so I end up with X>-2 and X>1...
*September 9, 2008*

**Science**

What is an example of aerobic organisms? Thank You
*September 1, 2008*

**math**

How do i find the area of a triangle? For example: A squared + b squared= c squared 8.5 squared + 6.4 squared= c squared 72.25 + 40.96= c squared 113.21=c squared 10.6400188=c even tho i thought this was the answer it is not because it does not solve the code on the worksheet...
*August 29, 2008*

**geometry**

find the circumference of each circle. use 3.14 for
*August 28, 2008*

**english**

i had an essay prompt, write about what Machiavelli would think if he encountered mencius' novel, mencius. I was looking for ideas to get started. Ways I thought he would disagree with Mencius is the importance of profit (Mencius- for the people, Machiavelli- for the ...
*August 16, 2008*

**geometry**

waht can I do to get help with my graph question ?
*August 12, 2008*

**english**

hi could anyone help me i need pun words for sucker and lollipop
*July 14, 2008*

**biology**

I was wondering if anyone could help me to better understand the Dichotomous Key and how to fill one in.
*July 12, 2008*

**ethnics cultural diversity**

I have to write a 700-1,050 word essay about my ethnic group but I don't know where to begin or where to search, do you have any advice?
*July 11, 2008*

**math**

IT CANT BE REDUCED
*July 8, 2008*

**Vocabulary**

i dont understand an homework it is to do with findind a diffrent word otherwase than walked.
*July 7, 2008*

**algebra**

6. Find the equation of each parabola described below. a) parabola with vertex (0,0) and the focus (0,7) b) parabola with focus (-3,0) and directrix x=3 c) parabola with vertex (3,3) and directrix x=-1 d) parabola with focus (-2,-1) and directrix y=5 e) ysquared=-6x translated...
*June 15, 2008*

**chem**

Water---> H2O (bi7) Fl2
*May 29, 2008*

**social studies**

Its china
*May 28, 2008*

**Science ( the sun)**

Is the sun a high mass star or a low mass star?
*May 28, 2008*

**Science**

Is the sun a high mass star or a low mass?
*May 28, 2008*

**Literature-Poetry**

All of Ashley's answers are right.
*May 28, 2008*

**geography**

for my homework i need to find out about broughton airbus factory.i need to write a report and a paragraph about these questions:- where it is what alterations have been made to the factory how it helps the airbus industry how the wings are transported to other countries when ...
*May 22, 2008*

**GEOGRAPHY**

for the question about how the wings are transported to toulouse it says about the A380 wings does this apply to all airbus. thanks ms sue for your help i appreciate it.
*May 19, 2008*

**Science**

What is another name for atmospheric conditions?
*May 18, 2008*

**Math**

i like to do maths
*May 16, 2008*

**Algebra II**

Oh, I see. So there would be two solutions for both B and C. I would just solve it like a regular triangle, and B' and C' would be 180 minus the values of B and C. Thanks!
*May 15, 2008*

**Algebra II**

How do you solve a triangle with two solutions? The problem says that A=40 degrees, b=10, and a=14. So I did this: 14>(10)(sin 40) And this means that there are two solutions according to the equations my teacher gave me. What do I do now?
*May 15, 2008*

**Algebra**

Sorry for asking another question, but I don't know how to set this problem up. Ship A is due west of a lighthouse. Ship B is 12 km south of ship A. From ship B the bearing to the lighthouse is N63E. How far is ship A from the lighthouse?
*May 14, 2008*

**Algebra**

I'm fine with angle of elevation problem, but angle of depression problems are tricky for me. Is this right? From a balloon 835 m high, a command post is seen with an angle of depression of 7 degrees. How far is it from the point on the ground directly below the balloon to...
*May 14, 2008*

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