March 22, 2017

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Number of results: 16,712

January 26, 2009 by lANEY

dT/dt= k(T - Tm), t > 0 where k is a constant of proportionality, T and Tm are measured in degrees Fahrenheit, and time t is measured in hours. Because Diff wants to investigate the past using positive values of time, he decides to correspond t  0 with 6:00 A.M., and so...
September 27, 2012 by armut

Diff eq
y'(x)=sqrt2y(x)+7, y(4)=1 Solve the seperable diff eq
February 24, 2013 by Melissa

Put slice of "potato" in four diff bowls. Add diff "solutions" to each bowl. Which is Dependent Variable and which is Independent Variable?
October 26, 2011 by LW

Please help me on this calculus question. I am getting the wrong diff. equation and so my answers to the remaining parts are wrong. ---------------------- A thermometer reading 85 degress outside is brought into a room with a constant temperature of 72 degrees. The rate of ...
September 29, 2009 by Matt

Calculus Help
use logarithmic diff. to find the derivative of the function. Show steps please! so I can see how it is done. Thank you so much! y=(e^(-x)cos^(2)(x))/(x^(2)+x+1)
March 18, 2014 by Maho

physical science
if two lighting volts heat exactly they same place at they same time in are frame of ref.,it is possible that observed in other frames will see the volts heating at diff. time r at diff. places????? explain.
September 25, 2011 by angie

I want to know how we know if a function is continuas or discontinuos and what are the types and diff if discontinuos functions?
September 22, 2008 by Mia

Implicit diff. y^2 + 4xy +4y^2=40 2yy'+ _______ + 8y*y=0 I am confused with the 4xy. Would you write this out to be 4x*y'+4y OR 4x*4y' + 4y*4x'? Please help
October 5, 2014 by Annette

Calculus Help Please!!!
If x^3 - y^3 =3 , use only implicit diff. to find d^2y/dx^2 . Express your answer in terms of x and y only and write is as a proper fraction that is completely simplified as much as possible.
April 8, 2014 by Tanya

"Leave the answer as a definite integral, but indicate how it could by evaluated by using the fundamental theorem of calculus." I solved the problem to a definite integral. Proceeding via the fundamental theorem, would involve finding the indefinite integral (or antiderivative...
July 3, 2012 by Parker

Calculus Help Please!!! Urgent!!!
If x^3 - y^3 =3 , use only implicit diff. to find d^2y/dx^2 . Express your answer in terms of x and y only and write is as a proper fraction that is completely simplified as much as possible. d^2y/dx^2= -6x/y^5 (this is the answer I should get but i don't know how to show ...
April 9, 2014 by Tim

actually an ODE question(but there's no diff. eq. subforum) (y^2)(dy/dx)+y^3/x =2/x^2 using substitution u(x)=y^3 so I've been doing a few of these and getting them all wrong and this problem... I don't know where to start. I tried (1/u)(du/dx)+u/x(du/dx)=2/x^2 but that gives ...
January 30, 2012 by bob

Calculus Help STEVE
find y'' by implicit differentiation. 2x^3 + 3y^3 = 8 I got the first derivative as you but the problem was asking for second derivative by implicit diff. this is where i got confused. Thank you!!!
March 20, 2014 by Matt

Calculus Help Please!!!
Use implicit diff. to find dy/dx of each of the following. In the following x,y and (a) are all variables. Show step by step please! Thank you! 1) y^2 = x^2+a^2 2) y^2+ay = x^2+ax+a^2
March 16, 2014 by Josh

A particle is moving along the parabola 4y = (x + 2)^2 in such a way that its x-coordinate is increasing at a constant rate of 2 units per second. How fast is the particle's distance to the point (-2, 0) changing at the moment that the particle is at the point (2, 4)?
November 18, 2010 by KAREEN

Two Boats the Picadilly and the Orange are competing for a spot in the Cup races. They race over a part of the course SEVERAL TIMES. The sample times in minutes for the Picadilly are 12.9, 12.5, 11.0, 13.3, 11.2, 11.4, 11.6, 12.3, 14.2, and 11.3. The sample times for the ...
August 20, 2015 by August

diff calculus
1.) triangular corner lot has perpendicular sides of lengths 120 feet and 160 feet. Find the dimensions of the largest rectangular building that can be constructed on the lot with sides parallel to the streets.
October 17, 2014 by west

Diff Calculus
a swimming pool is 5m wide, 10m long, 1m deep at the shallow end, and 3 m deep at its deepest point. a cross section is shown in the figure. if the pool is being filled at a rate of 0.1 m3/min, how fast is the water level rising when the depth at the deepest point is 1m?
August 18, 2015 by Gene

diff eq
solve 2y^2(y'')+2y(y')^2=1
February 17, 2013 by jump

Diff EQ
is the integration of (x-2)^2 = 1/3(x-2)^3 Yes, that is correct.
January 22, 2007 by nicole

diff in fact oppinion
January 3, 2011 by no name

Find out the partial derivative w.r.t 'x' and 'y' of f (x,y) = log(y) x Now, log(y) x = ln x / ln y Partial Diff w.r.t 'x' = 1/ x ln y so can you find out what will be the partial derivatives w.r.t 'y'
March 1, 2015 by Akki

What are the steps in finding the diff quotient for f(x)= sq rt of x?
November 3, 2008 by Kassi

What is the diff. Between parabola and ellipse
May 10, 2016 by Anonymous

Biology - URGENT Enzyme Lab
Did a catalase producing hydrogen peroxide lab, used manganese dioxide, fresh frozen liver, potato, ice, fine clean sand, etc. Basically just added hydrogen peroxide to the catalysts under diff conditions and stuff. Just don't get this question which is : how do you account ...
April 5, 2013 by Shreya

trying to find the sims and differences for the following --------------------------------------- fertilization v pollination sim's both part of the process of sexual repro diff. pollination doesnt involve direct contact since it is transfer from the anther to the stamens by ...
July 27, 2009 by Jim_R

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

diff between actual and formal parameter
October 25, 2011 by computer

state diff. between HTML AND DHTML
June 5, 2012 by Shivansh Tomar

whats the diff b/w figure of speech and figurative language?
January 2, 2008 by BEN

social studies
how is the iroquois confederacy diff. from the colonial government?
March 25, 2010 by lauren

what is the the diff betwwen the three: imperative, active and passive
June 28, 2015 by jaydee

differential equations
the general solution of the diff. eq. y' = (1/x)(y/(1-y)) - (1-x)(y/(1-y)) in implicit form is?
August 4, 2015 by Anonymous

What diff will appear in the mass no.if the no. of neutron is halved no. of electron is doubled in 8 O 16
November 6, 2016 by Ayushi

The Erie Run Outlet mall has two NIKE stores, one is on Liberty street and the other on Barnes St. Two stores laid of differently, both owners claim their stores maximizes the amounts customers will impulse purchase. A sample of 10 customers at the Liberty st store revealed ...
August 20, 2015 by August

Diff EQ
Find all critical points of the given system and investigate the stability of each. dx/dt = y - 1 dy/dt = x^2 - y
April 4, 2011 by Alex

Can someone check my answer please i don't know if I am doing this right x^ (2):x= sum (x^2 )+ (x)=x^2+x diff (x^2 )-(x)= (x^2-x) Product (¡¼x)¡½^2 (x)=x^2^x
September 20, 2013 by Rick

the general solution of the diff. eq. is y' = (1/x)(y/(1-y)) - (1-x)(y/(1-y)) what is the implicit form? what method would I use for this?
August 1, 2015 by Anonymous

Diff Calculus
Find the interval(s) where the function is increasing of decreasing. find the: a) critical value(s) b) critical point(s) c) max. value + max. point d) min.value and min. point e)point on inflection if there is: 1) y=x^4-3x^3+22x^2-24x+12 thanks:)
October 2, 2011 by unknown

I am working on a research project. I am concerned about my opening paragraph. Could anyone read this to see if it makes sense. My topic is C. Diff. In 2009 according to the CDC and US Deparmtne of Social Secirty there were 2,437,163 people that died that year. During 2009, ...
August 23, 2012 by Jenifer

home economics
What are the, equipments,materials used for farm crop production.
June 4, 2012 by bing

Im so tired of being frustrated can someone help get the sum diff and product of this problem 3^x ∶ x^2-3^x+ 2
September 19, 2013 by tela

math grd 11
how do u draw an asymtote ? diff btwn set and interval notation? and example plz
April 15, 2010 by forki

can someone help me with this crazy problem please I have to do the sum diff and product for class x^3- ¡¼2x¡½^2 + 3x-1 ¡Ã x^2- x+4
September 20, 2013 by Rick

Please can you help out: 1)The Potential diff across the terminals of a battery is 8.5v when there is a current of 3amps in the cct from the -ve to the +ve terminal. When the current is 2amps in the reverse direction, the potential diff becomes 11volts. a) what is the internal...
April 17, 2007 by Charles

Pre Calculus 12
Im on the chapter of permutations/combinations/fundamental counting principle need help with 2 questions 1. emma is arranging her books in piles on her desk. she has 5 math books, 3 english books, and 4 science books. how many ways can she arrange them if she wants to keep the...
January 18, 2013 by Shreya

how do u draw an asymtote ? diff btwn set and interval notation? and example plz
April 15, 2010 by forki

A swimming pool is 12 meters long, 6 meters wide, 1 meter deep at the shallow end, and 3 meters deep at the deep end. Water is being pumped into the pool at ¼ cubic meter per minute, and there is 1 meter of water at the deep end. a. What percent of the pool is filled? b. At ...
October 18, 2014 by JR

How do we identify or interpret when to get the screen away or towards the mirror in different situations? Please tell me diff. cases---phy practicals
March 6, 2017 by meg

Calculus - please check my work
differentiate each function a) y = cos^3x b) y = sin(x^3) c) y = sin^2 xcos3x my answers: a) y' = 3cos^2 x(-sinx) b) y' = cos(x^3)(3x^2) c) for this one, i don't know which one is correct. i got 2 different answers but i think they may be the same.. im not sure, i did it twice...
June 19, 2012 by Henry

math grd 11-midterm tomm
please explain how do u draw an asymtote ? and whats the diff btwn set and interval notation? and example plz thanks
April 15, 2010 by just wondering

Polynomials check my answer please
I need help bad i been doing this homework since i got home at 4:00 and am stuck on this problem. X -1 : X-2 =sum (x+1)+(x-2)=(x+x+1-2) diff (x+1)-(x-2)=(x-x-1-2) Product (x-1)(x-2)=(x^2-1)
September 19, 2013 by johnnie

can someone please help me with this problem I have to get the sum diff and product I keep trying to work it out but i really think im blowing it. x^3- ¡¼2x¡½^2 + 3x-1 ¡Ã x^2- x+4
September 21, 2013 by Rick

i am three digit number below 100 sum of my digit is 14 and the diff is 4 who am i
June 11, 2014 by belina

sources said that differentiation of GIF is 0 but x in GIF is variable .and diff.of simple x is 1.?
October 1, 2015 by Edward

Diff Eq
If y(t)=3e^(t^2)is known to be the solution of the initial value problem y'+p(t)y=0, y(0)=y_0, what must the function p(t) and the constant y_0 be?
September 7, 2012 by Joe

you have 8 different flavors of ice cram and 10 diff toppings how many different desserts could you make
September 9, 2016 by Anonymous

Do they need to match twenty days and 90 days. In the same paragraph but referring to diff requirements?
October 5, 2016 by Lizzie - MS SUE

i did and iv already got that info so i need diff info
October 11, 2009 by holly

Can someone show me step by step how to get the sum diff and product of this problem x^3- 〖2x〗^2 + 3x-1 ∶ x^2- x+4
September 19, 2013 by tela

Polynomials check my answer
My brother said I did this wrong can someone check this for me please X Y-1 = sum(x)+ (y-1)=(X+y-1) diff(x)-(y-1)=(x+y+1) Product (x) (x-1) = (xy-1) = (xy-1)
September 19, 2013 by tela

find the 5 diff. ways a collection of 100 coins-pennies, dimes, and quarters- can be worth exactly worth $4.99.
January 27, 2009 by Julie

math percentage diff
a value of 2.40 increased to 4.48 in 5 years. what is the change in percentage each year? this one was difficult to figure out..
March 24, 2010 by danny

Microeconomics: Describe the diff. market forms ( I've done that) Under which equlibria and under which circumstances is sustainable profir possible? ( I am lost)
January 5, 2007 by Angel

how do u draw an asymtote ? diff btwn set and interval notation? and example plz
April 15, 2010 by forki

If a ball is thrown off a 123 m cliff at a speed of 18 m/s, how far from the base of the diff is the ball? Givens: Unknown: Equation: Substitute: Solve:
September 22, 2016 by Anonymous

what is autism? autism is a developmental disablity that affects a person's way of communicating with others, their social interaction, and educational performance. how i put this in diff words?
February 28, 2010 by Anonymous

compute theoretical yield (g) ~2Al+3Cl2->2AlCl3 ~2g Al, 2g Cl2 [ans:2.5g AlCl3] i need the calculation work bcus i got diff from the ans which is 7.12 g.
July 20, 2011 by lily

polynomials help me please
Im sorry here is the problem rewritten X^3 -2x^3 + 3x-1 : X^2-x+4 I have to get the sum diff and product and it kicking my tail i think i keep doing it wrong can someone please help me
September 21, 2013 by Rick

Math - derivative of f(x) (check)
f(x)= (x^2-1)^3,is its derivative f'(x)= 6x^5 -12x^3 + 6x. Is there an alternative answer, because a computer generated answer is diff then mine. please help.
October 27, 2010 by Anonymous

Old Bridge
Sue has 8 pairs of dress shoes. How many diff. way can she arrange five pairs of her shoes in her closet?
February 25, 2012 by Jane

Diff eqn- IVP
A simple pendulum of length is oscillating through a small angle θ in a medium for which the resistance is proportional to the velocity. Obtain the differential equation of its motion and discuss the motion.
March 12, 2011 by shasha

There are four children of diff erent ages in a family. Their mom purchases six di erent gifts and decides to divide the gifts randomly between the children. Assuming that a child can receive no gift or multiple gifts, answer the following questions: (a) What is the ...
September 7, 2014 by navera

ALG II - Probability
Owners of a restaurant advertise that they offer 1,114,095 diff lunches based on the fact that they have 16 “free fixins” to go along with any of their 17 menu items (sandwiches, hot dogs, and salads). How did they arrive at that number?
May 18, 2010 by Cole

Then, do isotopes have different atomic radii? since they all have different numbers of neutrons. Even if they only differ by 10^-23 m, there is still some diff right?
February 29, 2008 by Kurst

phys. science
when most matter is heated it expands right? & doesnt water expand when it is heated? & what is the diff. b/w thermal conductor and thermal insulator? & in which direction will heat spontaneously flow?
May 15, 2008 by leann

Sum of radii of two spherical ball is 22 cm and the diff of their volumes is 3050 2/3. Find radii. In this question if i r+R= 22 (eq 1)and Pi(r2-R2)=3050 2/3 (eq 2) and subs value of r from eq 1 in eq 2; my answer wont match with textbook. What should i do???
November 4, 2014 by Esha

I have a few diff questions: 1. Georgia _____________) esta enojada or teine tos)porque tiene varicela y no puede ir a la fiesta de Anita I put in the blank tiene tos
February 3, 2008 by sam

Diff eqn- IVP
The differential equation that governs the forced oscillation is shown below: 0.2 d²y/dt² + 1.2 dy/dt +2y = r(t) where r(t) is the external force. Given that r(t) = 5 cos 4t with y(0) = 0 . find the equation of motion of the forced oscillations
March 14, 2011 by shasha

Diff eqn- IVP
A particle moves on the x-axis with an acceleration, a=(6t-4)ms⁻1. Find the position and velocity of the particle at t=3 , if the particle is at origin and has a velocity of when t=0
March 12, 2011 by shasha

a mixture of 50g of S & 1x10^2g of Cl2 reacts completely to form S2Cl2 &SCl2. Find the mass of S2Cl2 formed. (ans:20.2g) i need the calculation work bcus i got diff. from the ans which is 70.2g.
July 20, 2011 by lily

differential equations
Solve the following equation explicitly by expanding up to order x5, the following 2nd order diff equation. y''(x) = (1 + x^2)*y(x) pls show working y =f(x)
November 29, 2011 by zac

help spanish
I am having a very diff time with htis answer these questions negatively - indicating that wjta is being asked already happened. 1. Vas a buscar una tiends de computadoras en el centro comercial? 2. Vamos a encontrar muchas rebajas en el centro?
January 26, 2008 by sam

a sample of an unknow metal exists as a perfect cube that meausres 0/78 in on a side and weighs 61.4 grams. what would be the mass, in grams, of a diff sample of this metal that has a volume of 25.0 cm^3
September 18, 2012 by Helen

chem org
dipole-dipole means? and diff between non polar and polar? is it really part of organic chem?
June 28, 2015 by jaydee

A simple pendulum with bob of mass m and conducting wire of length L swings(is hanging ) under gravity thro' an angle 2theetha. The earth's magnetic feild component in the direction perpendicular to swing is B. the max potential diff induced across pendulum is?
July 7, 2016 by somya

A plane sound wave propagated in air has individual particles which execute a periodic motion such that their displacement y from their rest position at any time t is y=5x10^(-6)sin(800pie(t)+theta). Calculate (i) wavelength. (ii) phase diff in degree between particles 17cm ...
March 22, 2010 by Edwin

if two lighting volts heat exactly same place at the same time in are frame of ref,it is possible that observes in other frames will see the volts heating at def. time or diff. places? explain
September 25, 2011 by angie

chemistry - empirical formula
write the empirical formula for each of the following molecular formulae" a)P4O10 b)C2H6 Confused as to what the b/w empirical and formula...have no idea how to answer these b/c they look like empirical formulas to me
May 23, 2008 by Sarah

I am too embarassed to ask this Calculus (really pre-calculus) question in tutoring, because I know I should know. Is the inverse of f(x)=3x-1 actually f(x)=1/3x+1? How do I find it? What if it asks the same equation replaced with f to the -1 power (x)? I think I know how the ...
July 1, 2008 by Molly

Help please... some diff equation prbolems... 1.) Transform 2xdy - y(x+1)dx + 6y^3dx = 0 into a Bernoulli Equation. 2.) The equation of the tangent line of the one-family of curve x^2 + y^2 = 25 at P(4, 3) is_______ 3.) The complete solution of 2x^3 dy = y (y^2 + 3x^2) ...
December 14, 2009 by Therese

Which ones apply to a solution ? i thought it was 2,6,7 and 8 1. Does not settle on standing 2. scatters light 3. can separate when allowed to stand 4. contains only fixed amts of components 5. Often appears cloudy 6. components do not lose their own properties 7. looks the ...
October 6, 2007 by claire

Which ones apply to a compound? i thought it was 4 and 6 1. Does not settle on standing 2. scatters light 3. can separate when allowed to stand 4. contains only fixed amts of components 5. Often appears cloudy 6. components do not lose their own properties 7. looks the same ...
October 6, 2007 by claire

elow kindy ans. my question pls.. what is optium point in budget line and indefference curve, and also what is the diff. between budget line and indefference curve?..
February 21, 2009 by vanie

An oil drop ‘B’ has charge 1.6 × 10−19 C and mass 1.6 × 10−14 kg. If the drop is in equilibrium position, let 10 k be the potential diff. between the plates. [The distance between the plates is 100 mm] Then what is the value of k.
October 12, 2013 by preet

Indicate which of the following are exact numbers. the mass of a stapler? i think its inexact because all staplers are different sizes. Is that correct? Also,the mass of a postage stamp. is that inexact? because they can also be diff. sizes?
August 17, 2012 by Hannah

Finite Math
Fifty percent of students enrolled in calculus class have previously taken pre-calculus. Thirty percent of these students received an A for the calculus class, whereas twenty percent of the other students received an A for calculus. Find the probability that a student selected...
June 10, 2015 by Nikole

Maths A level
A large cylinrical tankor radius 40cm contins a liquid and at time,t the depth is h cm. There is a hole in the bottom and liuid leaks out at a rate of 32pi h to power of 0.5. Show at time t, the heighth of the liquid in the tank satisfies the diff. eqn..dh by dt=-0.02 h to ...
May 23, 2014 by Thomas

What is the use of Calculus? How is it use in jobs? What jobs use Calculus? Calculus is used in engineering, economics, any physical science, and in business (e.g., actuary studies and statistics).
May 5, 2007 by Anonymous

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