Wednesday
April 23, 2014

Posts by jane


Total # Posts: 1,318

1st grade
They all have scales. can i used this as a sentence

1st grade
He doesn't wants to read Snow White. Is that a sentence

AP Bio
Transpiration Lab- I need to calculate the rate for each of the treatments. Here is the data These are the results of an experiment that was done you need to graph the results and answer the questions. Class Average Cumulative Water Loss in ml/m2 Time (minutes) Treatment 0 10 ...

Help me expand my paper PLEASE
as many subtopics as possible, and thanks to everyone that contributed

Help me expand my paper PLEASE
I'm doing it on overfishing I need subtopics :[

science-writing-research paper
I need tips on how to expand a research paper..my subject is overfishing and I need help with what to talk about..like what are some subtopics? Help is greatly appreciated

haha how do i respond to responses?
omg i can't believe i just forgot c in part c. it's even called part c! and thank you for the help with part b. i completely forgot about that!

calc
i did this problem and it isn't working out, so i think i'm either making a dumb mistake or misunderstanding what it's asking. A particle moves along the x axis so that its velocity at any time t greater than or equal to 0 is given by v(t) = 1 - sin(2pi*t). a. Acce...

reading
what does this mean "by the skin of their teeth"

science
what types of materials are volcanoes like Mount St. Helens made of?

science
why does a cinder cone have such steep sides? PLEASE HELP THIANKS!

science
i found this from my textbook is it right it erupt violently releasing large qualities of ash and gas. its eruptions have rendered more than half of montserrat uninhabitabe. it caused widespread evacautions.

science
Describe the processes that have led to the formation of the Soufriere Hills volcano. how have the inhabitants of Montserrat been affected by this volcano?

Business Communication
D - I am not so sure about my answer

Calculus
There was a typo in last question A company estimates that the cost ($) of producing x units of a certain product is given by: C= 800 + .04x + .002x^2 Find the production level that minimizes the average cost per unit.

Calculus
I still do not see what the answer would be . Is x = .001

Calculus
Sorry for the typo - you are correct it should be -.002x^2

Calculus
Here's one more that I do not understand A company estimates that the cost ($) of producing x units of a certain product is given by: C= 800 + .04x + .0002x^2 Find the production level that minimizes the average cost per unit. Thank you so much

Calculus
This is the question - you are designing a rectangular poster to contain 256 in^2 of printing with a 3 " margin at the top & bottom and a 2 " margin at each side. What overall dinmensions will minimize the amount of paper used? Round to the nearest whole inch if nece...

Calculus
Here's another one that I do not really understand. A company estimates that the cost (in dollars) of producing x units of a certain product isgiven by: C=800 + .04x + .0002x^2. Find the production level that minimizes the average cost per unit.

HS Calculus
Having trouble with this questions. Please help. A particle moves on the x-axis so that its position at any time t (is greater than or equal to) 0 is given by x(t) = 2te^-t a) Find the acceleration of the particle at t=0 b)find the velocity of the particle when its acceleratio...

spanish
How do you say great great grandmother and great great grandfather in spanish?

college
What was the result of your IAT, and do you feel that the test produced valid results in your case? o In your opinion, is it difficult to accurately measure prejudice? Why or why not? o Describe other measurements sociologists use to calculate prejudice

Chemistry
thx 4 the help.

Chemistry
Why might exposure to organic chemicals be a problem? Refer especially to halogenated hydrocarbons and alcohols. Help please. thx

calculus
f(x) = cos(x) - (cos(x))^2 for -pi is less than or equal to x is less than or equal to pi 1) x-intercepts? 2) x and y coordinates of all relative maximum points? 3) intervals on which f is increasing? then i have to sketch f, so tips on doing so would be appreciated. thank you!

Aantomy
How would damage to inter neurons in the spinal cord affect nervous system function?

calculus
thanks!

calculus
Find the exact value of: cos(arctan(2) + arctan(3)) Please explain how you got your answer. I have the answer, but I don't know how to get to it.

i lied. very quick calc problem.
f(x) = abs(sin(x)), -pi less than or equal to x less than or equal to pi g(x) = x^2 let H(x) = g(f(x)) i got that H(x) would equal sin^2(x). THIS IS WHERE I AM STUCK! find the domain of H. do i still need to account for "-pi less than or equal to x less than or equal to p...

last calc question, i promise!
the second one would be x = 2, resulting in the original point (2,1), i think. but other than that, thank you sooooo much!

last calc question, i promise!
ALSO ALSO ALSO - on my first calc question (a couple posts down!), i added more to the problem that i forgot, so i need help with that too.

last calc question, i promise!
i mean: do i just set (-1-y)/(x+4y) equal to -1/3 AND use the original formula to come up with an answer? like a two-variable system?

last calc question, i promise!
given the curve x + xy + 2y^2 = 6... a. find an expression for the slope of the curve. i got (-1-y)/(x + 4y) as my answer. b. write an equation for the line tangent to the curve at the point (2,1). i got y = (-1/3)x + (5/3). but i didn't any answer for c! c. find the coord...

calc again!
thank you sososososo much! i was pretty sure of these, but i wanted to double-check.

calc again!
i got answers for this one, but i feel like i did something wrong. f(x)= 2x+1 when x is less than or equal to 2 (1/2)x^2 + k when x is greater than 2 1) what value of k will make f continuous at x = 2? my answer: i got k = 3 because it would make the two parts of the function ...

calculus please
i forgot the part that said "for -pi is less than or equal to x is less less than or equal to pi" this was attached to the f(x) - does it change the answer? the domain?

calculus please
given f(x) = abs(sin x) and g(x) = x^2 for all real x: 1) let H(x) = g(f(x)) and write an expression for it. 2) find domain and range of H(x). 3) find an equation of the line tangent to the graph of H at the point where x = pi/4.

Algebra
3) ab+mn+an+mb ab + an + mn + mb a(b + n) + m(n+b) (a + m)(b + n)

Algebra
6) P = 22 A = 24 2l + 2w = 22 lw = 24 l = 24/w 2(24/w) + 2w = 22 48/w + 2w = 22 48 + 2w^2 = 22w w^2 - 11w + 24 = 0 (w - 8)(w - 3) = 0 w = 8 or 3 l = 3 or 8 dimensions = 3 x 8

Algebra
4) GARDEN width = w length = w +5 GARDEN w/CEMENT WALK width = w + 6 length = w + 5 + 6 = w + 11 a = 546 ft sq. a = lw a = (w+6)(w+11) 546 = (w+6)(w+11) 546 = w^2 + 17w + 66 0 = w^2 + 17w - 480 w = (-17 +/- sqrt(289 - 4(1)(-480))/2 w = (-17 +/- sqrt(289 + 1920))/2 w = (-17 +/-...

French
Can you please unscramble these letters into 4 words with this spacing. xxx xxx xx xxxxxxxx? CPOBETULEEIQSAUL Thank you

Organic chemistry
Write contributing (important) resonance structures for each of the following compounds and predict their relative C=O vibrational frequencies based on the importance of the contributing resonance structures. List in them order from highest to lowest frequency. a.) Cyclohexano...

chemistry
I am trying to synthesize CH3CH2CH2CH2CL from only 2HC=CH2, and am unsure about which mechanism to use, any ideas?

chemistry
I am trying to synthesize CH3CH2CH2CH2CL from only 2HC=CH2, and am unsure about which mechanism to use, any ideas?

math
f''(x) = 24x^2(x^2-1) + 6(x^2-1)^2 when is the graph of f concave upward?

Organic chemistry
Suggest an appropriate reducing reagent for the following substrates and predict the product of the reaction: a) 2-hexanone b) ethyl 4-nitrobenzoate (reduction of the nitro group) c) hexanal

history
oh wow, thank you so much!

history
i have a bunch on her rule in my history notes, but i wanted some extra information and she apparently doesn't exist by that name online! she ruled china in place of several child rulers and ruled during a war in maybe the late 1800s? that's all i have and i need more.

history
i really need to know who zuxi is and google isn't coming up with anything and for some reason, my last question was deleted. help please?

history
Why did westernization fail in the Ottoman Empire?

chemistry another Q
Which, 9-fluorenol or 9-fluorenone, would have higher Rf value on a silica gel plate with 30% acetone/70% hexane at the eluent? Explain.

chemistry
Calculate the amount (volume) of 5.25% (wt./vol.) NaOCl solution (commercial bleach) required to oxidize 100mg of 9-fluorenol to 9-fluorenone. Whenever appropriate, use balanced chemical equations as a part of your calculation.

history
Was Westernization the best policy for China, Japan, Egypt, and the Ottoman Empire? i don't need a direct answer, just links to websites that could help me out with this. google didn't come up with anything for me.

how children learn
according to carl jung what are the two main ways that people process information

Calculus
Got a midterm worksheet. Realized how confused I am. Here are some questions: lim x^3 + 12x^2 - 5x/5x x->0 Find the indicated limit: lim 11x/absolute value x x->0+

calculus
Consider curve given by x^2+ 4y^2= 7 + 3xy.. Three part question A) show that dy/dx = 3y-2x/8y-3x B) Show that there is a point P with x-coordinate 3 at whiich the line tangent to the curve at P is horizontal. Find the y-coordinate of P. C) find the value of d^2y/ dx^2 at the ...

Calculus
Find: 1)x^2-y^2=15, normal at (-8,7)

Eth125
What was the result of your IAT, and do you feel that the test produced valid results in your case? o In your opinion, is it difficult to accurately measure prejudice? Why or why not? o Describe other measurements sociologists use to calculate prejudice

Calculus
I rewrote the quesion y = sqrt (4 + sin 10x)

Calculus
y = sqrt (4 + sin 10x)

Calculus
More questions on - finding dy/dx 1) y = sqrt 4 + sin 10 x - I am lost again 2) y = 10/sin x answer: - 10 csc x cot x 3) y = sin x/ 8x

Calculus
Need help to find dy/dx: 1) y = (sin x) ^-1/3 answer dy/dx = - 1/ 3(sinx) ^4/3 2) y = sqrt 8 + sin(6x) answer - lost

spelling
brother is to mother like fly is to? 4 letters and must include scr spr str or thr

Calculus
Answer ? - impicit differentiation Find dy/dx & d^2y/dx^2 y^2 - x^2 = 2 is the answer dy/dx=x/y; d^2y/dx^2= y^2-x^2/y^2

Calculus
I did miss the sign but would the answer be: 7x^6 - ----- csc^2y

Calculus
Here's another one - I think that I am starting to understand it. Find dy/dx by implicit differentiation: x^7 = cot y My answer is csc^2y / 7x^6

Calculus
Thanks Remy. I have one more - 2y + 9xy-4=0 I got -9y/2 + 9x

english
Neither Shanti nor Neelima have an extra pen. I think

Calculus
I am lost. Find dy/dx by implicit differentiation. 1) 5y-2x^2=x-3

PHysics
describe briefly how a generator works. Well, I'm in the electricity unit of my course, so would this mean I have to describe how electricity's generated?

english
annagrams aeiifglnhpwystThis is an event that will never happen. However, I suppose it could on any given Saturday Night. Here are your letters, you will have 3 left over. A E I I F G L N H P W Y S T

english
solve this puzzle make two words you will have one letter left. aeeioumnrrstv

physics
In the figure below, a uniform sphere of mass m = 2.50 kg and radius r = 2.4 cm is held in place by a massless rope attached to a frictionless wall a distance L = 10.2 cm above the center of the sphere. (a) What is the tension in the rope? N (b) What is the force on the sphere...

physicscalculus
An automobile with a mass of 1310 kg has 3.10 m between the front and rear axles. Its center of gravity is located 1.78 m behind the front axle. The automobile is on level ground. (a) Determine the magnitude of the force from the ground on each front wheel (assuming equal forc...

english
i have to devise a writing exercise which has to involve all children working on writing one text.so i need some ideas

english
hello:)i have to give my class a writng exercise which has to involve all children.they all have to work on writing out one and the same text?any ideas?

math
97.3 is 7% of what number?

math
roberto has 22% of his pay withheld for deductions. if he earns $680 per week, what amount is withheld?

sci/275
Raw carrot 52 calories per serving. Energy Calculator Trophic level Type of producer or consumer Total energy available from previous level (100%) Energy from total gained by consumer (10%) Energy from total lost when consumed (90%) First Primary producer 52 N/A N/A Second Pri...

sci/275
Identify the fruit or vegetable you selected and relate the second law of thermodynamics to the changes in energy observed in Appendix CHow did the amount of energy gained compare to the amount of energy lost as heat at the second through fourth trophic levels? Considering the...

literature
trust me i got a 85% which is a disappointment so if you want a 100% take this down 1.B 2.B 3.B 4.B 5.D 6.C 7.A 8.D 9.C 10.C 11.D 12.C 13.A 14.A 15.C 16.A 17.C 18.D 19.A 20.A

math
Ms. Jordan has been given a loan of $2,500 for 1 year. If the interest charged is $275, what is the interest rate on the loan?

english
need some help!which language learning strategies are you using when you need to solve these tasks: 1.Rewrite the sentences using adverbs I'm a terrible dancer.I dance_______ 2.Read the text and make questions and 3.Make subject and object questions So which language learn...

english
yes, i will be teaching ESL classes.I'll look through this page and see what is says.:)

english
Hey everybody:) Question:How can I as a future teacher help my students to practice how to use language?

deutsch
Hallo!Versteht hier jemand deutsch?Ich muss einen Bericht schreiben.Muss ein Thema sein das etwas mit Kroatien zu tun hat.Eher was aktuelles.Wenn jemand mir Hilfe leisten kann könnte dann wäre ich sehr dankbar!

government
are third party efforts essentially a waste of time in America? who were the 4 greatest presidents and why? (did anyone know the site or where i could find the answer for this???)

Niagara Falls
So you mean the characteristics of Niagara Falls???

Niagara Falls
Well, I'm doing a project that I picked in science and one of the questions said "What are the physical features of Niagara Falls" and I don't know what that means, so please help me!!!

health
Well, you could say that how he's gonna ruin the family or what's going to happen if he drinks a lot.

HS Calculus
I have one more that I really am lost at. Question - find the points on the graph y=2x^3-3x^2-12x+20 at which the tangent is parallel to tthe x-axis. I do not even know where to begin. We were told we could use the shortcut for this one.! Thanks again

HS Calculus
Thank you . I think that I understand alittle better. It is oblivious that I do not understand this material.

HS Calculus
Definition of the derivative to calculate f'(x) if f(x) = square root 2x. Find the equation of the tangent & normal line to the graph of f at x=2. Tangent line - y=2x-x Normal line - y = 1/2x +3 I do not know whether these are the correct answers.

HS Calculus
Let f(x) = 2/3-x a) find the slope of the tangent to the graph of f at a general point x0 using the definition of the dervative. b) use the result in part a to find the slope of the tangent at x0=1. I am very confused. My answer for (a) 1/ 6-6x-x^2 (b) -1 I compared them to a ...

Calculus
what is the limit of x/(ln x) as x approaches 0?

math
235 x 0.3 = x 235 - x = the amount you have to pay

HS Calculus
1) Limit theta approaching zero sin squared theta/ tan theta 2) Lim x appraoches zero x + sin x/x x + sin x/x = x/x + sinx/x 0 + 1 =1 My answer : 1 Is this correct

HS Calculus
Help Have some more that I do not understand. Limit theta approaching zero SinTheta minus Tan theta/ sin cubed theta

HS Calculus
1) Limit theta approaching zero sin squared theta/ tan theta 2) Lim x appraoches zero x + sin x/x x + sin x/x = x/x + sinx/x 0 + 1 =1 My answer : 1 Is this correct

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