Sunday

December 21, 2014

December 21, 2014

Number of results: 31,691

**chemistry**

The urine of horses are mixed with an excess of hydrochloric acid, after some time, a yellowish-brown crystalline precipitate, which have an unpleasant odor, that can't be removed by simply washing with water. This new compound has the following composition (parts by mass): ...
*September 11, 2013 by Ad*

**3rd grade**

alice folded a piece of paper into 12 equal squares and colored them. She had 3 times as many red parts as green parts and 2 more yellow parts than blue parts. How many parts did she have of eeach color?
*January 20, 2009 by tee*

**Science**

Why is it rare for the soft parts of an organism to become a fossil? A. the soft parts take a long time to decay. B. the soft parts can be eaten by other animals.* C. the soft parts cannot be buried in sediment. D. the soft parts form petrified fossils.
*October 30, 2013 by Anonymous*

**physics**

we just did an practical on newton's second law and we just have to do a report on it.... basically there are two parts to it, first part is when the overall mass of the system remains constant and the second part is when the force remains constant. there are two parts which i...
*September 20, 2008 by WT*

**French**

I know that the definite article is normally used when discussing parts of the body, but I have oftentimes seen possessive adjectives with parts of the body while reading. Why is this? Is it just done for clarification? Thanks!
*September 15, 2009 by RC*

**Mathematics**

A machine takes 4.2 hours to make 7 parts. At that rate, how many parts can the machine make in 28.8 hours 48 parts 41 parts 172 parts 17 parts
*November 21, 2012 by Nono*

**Science **

I just need to know if i got these right? 1.If we take out parts of our ecosystem, then other parts of it are affected. A. True B.False 2.All animals have the same risk of extinction. A.True B.False I think 1 is false and 2.is true
*November 10, 2011 by Anonymous *

**Calculus grade 12**

a) determine the derivative of y = sin2x b) determine the derivative of y = 2SinxCosx c) shoe that derivatives in parts a) and b) are equal d) explain why derivatives in parts a) and be should be equal.
*April 12, 2012 by Julie*

**Math/Calculus**

How would I integrate the following by parts: Integral of: (x^2)(sin (ax))dx, where a is any constant. Just like you did x^2 exp(x) below. Also partial integration is not the easiest way to do this integral. You can also use this method. Evaluate first: integral of sin(ax)dx...
*May 28, 2007 by COFFEE*

**Calculus**

xe^x using integration by parts
*May 21, 2014 by Laurie*

**Discrete Math**

A factory makes automobile parts, 5C7, 1O6 or 3Z0, which are of 5,000 parts, what is the minimum number of parts with the same serial number?
*October 27, 2011 by Rob*

**calculus**

The antiderivative of arctan(4t)dt by integration of parts.
*February 28, 2011 by Kate*

**Calculus B**

The antiderivative of ln(2x+1) using integration by parts.
*February 28, 2011 by Brandon*

**math**

A recipe for a fruit shake calls for 5 parts milk, 3 parts banana puree, and 2 parts strawberry juice. Find the quantity of each ingredient necessary to make an 8 ounce shake.
*December 5, 2013 by Katie*

**Calculus**

Find the outside and inside functions of the following to find their derivatives: 1) sqrt(2x+9) 2) cos(cos(x)) 3) tan(x) I already know how to find their derivatives I'm just not exactly sure what parts of the chain rule equation would be considered the outside and inside.
*June 18, 2013 by Robin*

** Algebra 1**

You are making up your own mix of concrete to patch a set of stairs. In order to have the proper mix, you need to mix 1 part of Portland cement with 2 parts of sand and 3 parts of gravel. A. How many total parts are in one batch of concrete? B. You make a mix with 4 parts of ...
*October 5, 2013 by KATIE*

**Calculus 2**

integral of xarctanxdx using integration by parts.
*September 26, 2012 by Heather*

**calculus**

INTEGRATION BY PARTS... 1) e^5t sin 3t dt 2) xe^3x dx 3) x sec^2 x dx **anybody can help me for this question?
*December 4, 2012 by kchik*

**calculus**

Use integration by parts to find ∫ 2x e-x dx.
*March 11, 2013 by mikey2*

**help with stochiometry**

can someone help me out with this one? balanced equation is: 2H2 + O2 > 2H2O My questions are: How many molecules of water are produced from 2.0 * 10 ^23 molecules of oxygen? How many moles of water are produced from 22.5 moles of oxygen? OK. First, it depends on if you ...
*January 24, 2007 by iearn*

**CALCULUS**

USE INTEGRATION BY PARTS TO FIND EACH INTEGRAL ƪxe^2x dx
*July 6, 2011 by renee*

**Calculus**

Use integration by parts to evaluate the integral xsqrt(2x+6)dx.
*September 26, 2013 by Taylor*

**major parts of speech**

select the incorrect statement. a. Major parts of speech are called content words because the carry most of the meaning fo communication b.Minor parts of speech are called function words because thay are concerned with meaning c. Major parts of speech include nouns verbs, and ...
*June 12, 2013 by Jim Collum*

**CALCULUS**

USE INTEGRATION BY PARTS TO FIND EACH INTEGRAL ƪx^5 Lnx dx
*July 6, 2011 by renee*

**calculus**

USE INTEGRATION BY PARTS TO FIND EACH INTEGRAL ƪx lnx dx
*July 6, 2011 by renee*

**math**

a bathroom cleaner contains 1 part of bleach with 4 parts of water. if you need 10 parts of bathroom cleaner, how much water and bleach do you need? If 1 part bleach and 4 parts water = 5 parts, then what do you need to do to get 10 parts? Although this does not solve the ...
*February 2, 2007 by mae*

**sciance**

what are the definitions of these words: Solute Infer Serial Dilute Parts per million parts per billion parts per trillion epidemiology epidemic contaminate microrgansims Quantitative Chlorine risk trade-off thanks
*November 28, 2007 by brittany*

**Math**

Three out of 200 machine parts were found to be defective. About how many parts would be expected to be defective out of 2500 parts?
*January 24, 2014 by James*

**Math**

Three out of 200 machine parts were found to be defective. About how many parts would be expected to be defective out of 2500 parts?
*January 24, 2014 by James*

**math**

Three out of 200 machine parts were found to be defective. About how many parts would be expected to be defective out of 2500 parts?
*February 3, 2014 by Na Bug*

**math**

Three out of 200 machine parts were found to be defective. About how many parts would be expected to be defective out of 2500 parts?
*May 14, 2014 by sam*

**Calculus**

How do I go about integrating sin[x^(1/3)]dx?? I tried doing integration by parts and I'm going in circles.
*February 13, 2009 by Hannah*

**Calculus**

Use either substitution or integration by parts to evaluate the integral: ∫(x+2)/(x+2) dx Thank you!!
*October 18, 2011 by Erica*

**Calculus**

How do I integrate (x^2)(e^(x^3)) dx? I think it is integration by parts but after trying that, I got confused?
*December 14, 2011 by Anonymous*

**Calculus (Parts A and B done, just help with C)**

The radius, r, of a sphere is increasing at a constant rate of 0.05 meters per second. A. At the time when the radius of the sphere is 12 meters, what is the rate of increase in its volume? B. At the time when the volume of the sphere is 36pi cubic meters, what is the rate of ...
*January 17, 2012 by Mishaka*

**stats**

Suppose a shipment of 500 machine parts contains 62 defective and 438 non-defective machine parts. From the shipment you take a random sample of 25. You are interested in the number of defective machine parts out of 25 trials and corresponding probabilities. When sampling with...
*October 21, 2012 by laura*

**Calculus II**

the gamma function r(x) is defined by r(x)= integral from 0 to infinity of x^n-1(e^-1)dx where n>0. Use integration by parts to show that r(n+1)=nr(n).
*April 7, 2014 by chelsea *

**Calculus**

How do I evaluate this integral: x^9cos(x^5)dx Hint: First make a substitution and then use integration by parts.
*February 22, 2009 by J*

**calculus**

How do I integrate x(arctanx) dx? Is it some sort of integration by parts? Can you please show steps? Thanks in advance!
*December 15, 2011 by W*

**Algebra 1--Please, help me!**

How am I supposed to graph the following functions? 1. A wholesaler is buying auto parts. He has $200 to spend. He recieves 5 parts free with the order. The number of parts y he can buy, if the average price of the parts is x dollars, is y = 200/x + 5. a. Graph the function. A...
*May 19, 2014 by Victoria*

**Discrete Math**

A factory makes automobile parts. Each part has a code consisting of a letter and three digits, such as C117, O076, or Z920. Last week the factory made 60,000 parts. Prove that there are at least three parts that have the same serial number.
*April 20, 2011 by Francesca *

**calculus help**

Is there any good calculus websites out there that teach every possible derivative there is? Such as the basic rules of differentiation, product and quotient rules, chain rule? ((I'm really bad a understanding the square roots. )) My book gives me examples but I just something...
*October 11, 2008 by student01*

**calculus**

how to take the integral of cos(square root of x) dx. need to use substitution and integration by parts but I don't know what to substitute
*January 21, 2008 by sarah*

**Calculus**

Use integration by parts to find the given integral: ∫_9^1 (7t - 42)e^(7 - t) = [-28(1 + e^8)] / e^2 Is my answer correct? or... is it.. = -70e^(-2) + 14e^6
*March 3, 2009 by Anonymous*

**8th grade math.**

He ripped a piece of paper into three parts, and tore each of those parts into three more parts. if he repeated this action 12 times, how many pieces of paper would he have?
*September 8, 2008 by sam*

**Calculus**

if you have g(x)=ln(x^10)+e^ln(x) would you just get 1/x^10+e^ln(x) or am i wrong the way it was explained to me that with e the derivative is just wat it is you dont change it
*October 8, 2012 by kieran*

**calculus**

The region R is defined by 1(</=)x(</=)2 and 0(</=)y(</=)1/(x^3). Find the number 'b' such that the line y=b divides R into two parts of equal area.
*January 26, 2010 by Stella*

**Calculus**

Use integration by parts to find the integral. Round the answer to two decimal places if necessary. (x+4)^ln x dx between 3 and 0
*November 23, 2011 by Jane*

**math/calculus**

Under what conditions can you extend a function f(x) to be continuous at a point x=c? Is this just rules for continuity or am I just really confused? If not what is this question asking?
*July 5, 2012 by Claire*

**calculus**

Integral of 10 / (5x^2 - 2x^3) Do not determine the numerical values of the coefficients. Just wanted to know why when I write out the form of the partial fraction decomposition there is A/x + B/x^3 + C/ (x^2 + 4) Why isn't it just A/x^3 + B/ (x^2 + 4)?
*March 2, 2013 by Daniel*

**calculus**

Use integration by parts to evaluate the definite integral. Intergral: xsec^2(6x) dx I set u=sec^2(6x) and dv=x, but the problems seems to get harder as I go on.
*February 27, 2009 by Jake*

**Progamming**

This is the Problem, I just want to get a little help on this problem. Suppose automile repair customers are billed at the rate of $35 per hour for labor. Also, costs for parts and supplies are subject to a 5% sales tax. Write a program to display a simplified bill. The ...
*October 23, 2010 by Lee *

**Calculus**

I need help solving the integral of t * e^-3t dt I know that I have to solve using integration by parts and so I've let u=t to rid of dt and dv=e^-3t which I believe would yield -(1/3) * e^-3t as v. Am I doing this correctly? Thanks. I appreciate the help. (:
*February 7, 2013 by Anonymous*

**Statistics**

Can someone please help me with this example, I do not understand it at all. Binomial problems: Advanced A machine that manufactures automobile parts is estimated to produce defective parts % of the time. If this estimate is correct, and parts produced by this machine are ...
*May 26, 2010 by Christi*

**Science-Pendulum**

The four parts in which I had to go through this investigation was: Part 1: Practice Part 2: Does mass affect the swing rate of a pendulum? Part 3:Does Arc length affect the swing rate of a pendulum? Part 4:Does Length affect the swing rate of a pendulum. It asks why was it ...
*February 5, 2010 by Sara*

**statistic math**

it is known that 5% of all parts manufactured at Plant F are defective. If 30 part are randomly selected what is the probability that all 30 parts are not defective and what is the probability that at least one of the 30 parts is defective?
*July 22, 2010 by alexis*

**chemistry**

If 19.7 g of CaCl2 are present in 200 mL of aqueous solution, what is the concentration in terms of the following? a. molarity 100 M CaCl2 b. weight/volume percent 0.1 % (w/v) c. parts per thousand 100 ppt d. parts per million 10E4 ppm e. parts per billion 10E7 ppb
*February 22, 2012 by krystal*

**math**

In a shipment of 750 parts, 75 were found to be defective. What percent of parts were faulty?
*July 23, 2008 by Ann*

**math**

If an IV drop has 15 parts per 1,000 ml, how many parts would there be in 430 ml?
*February 9, 2014 by Anonymous*

**Pre Calculus**

Applications of trigonometric functions Solve the missing parts of the triangle satisfying a=125 b=150 alpha=55 degrees There are two solutions
*October 14, 2011 by Josh*

**parts of speech**

What parts of speeech in English express huour
*January 31, 2011 by Ani*

**Math(Please help)**

1) h(t)=20(5/8) - 16(5/8)^2 + 10 = 65/4 All I need to know for this is how to calculate the fraction parts to get 65/4. I am not good with fractions. 2) A manufacturer's profit from producing x units of a product is given by P(x)=0.002x^3 - 0.01x^2 + 0.5x. At what production ...
*April 30, 2011 by Hannah*

**algebra**

What was the combined sales revenue in march for the parts and service devision of Jacks auto service. April 11,000.00- parts 70,000.00- service March percent increase 10%-Parts 25%-service
*February 11, 2009 by Domonique*

**Calculus**

How do you integrate [(x^2)(cos(2(x^3)))]? I tried to integrate by parts but I'm going in circles yet again...
*February 13, 2009 by Hannah*

**Calculus II**

Evaluate the integral using method of integration by parts: (integral sign)(e^(2x))sin(5x)dx
*February 22, 2009 by Kurai*

**Calculus B**

The Antiderivative of: x(arctanx)dx It's clearly integration by parts with u=arctanx and dv=x, but after that I go down hill. HELP!
*March 28, 2011 by Brandon *

**Calculus - Integration by Parts**

Please help me solve this integration problem. I don't understand how to do it. Thank you! ∫e^(2x)*sin(2x)dx
*May 18, 2011 by Emma*

**Science-Pendulum**

The four parts in which I had to go through this investigation was: Part 1: Practice Part 2: Does mass affect the swing rate of a pendulum? Part 3:Does Arc length affect the swing rate of a pendulum? Part 4:Does Length affect the swing rate of a pendulum. It asks why was it ...
*February 4, 2010 by Sara*

**maths**

Split 597 into three parts such that these are in A.P. and the product of the two smallest parts is 796.
*September 20, 2013 by partha*

**math**

Split 597 into three parts such that these are in A.P. and the product of the two smallest parts is 796.
*September 28, 2013 by Neil*

**Math**

The decimal number 0.75 means: A. there are seventy-five parts of a whole unit that has 100 parts. B. there are seven-and-a-half parts of a whole unit. C. that a whole unit consists of seventy-five parts. D. seventy-five tenths of a whole unit.
*July 14, 2012 by Loulou*

**physiology**

what are the parts of the cerebrum the receive and interpret somatic senory signals? I have searched my ext just cant find the answer.
*April 22, 2011 by lulu78*

**Statistics**

1) A Motor Company has purchased steel parts from a supplier for several years and has found that 10% of the parts must be returned because they are defective. An order of 25 parts is received. What are the mean and standard deviation of the defective parts? A) Mean = 3.5; ...
*February 15, 2009 by BEARHUG*

**Math**

Max creates a lavender dye by mixing 3 parts of red dye. Will a mixture of 14 parts of blue dye with 23 parts of red dye create the same shade of lavender?
*October 25, 2012 by Juan*

**Alegebra**

For a science project, Tyronce is misxing a solution that is 6 parts of sugar to 25 parts of water. How would you wirte this as a decimal
*February 17, 2009 by Michelle*

**grammar**

in classifying a sentences u underline the _______ parts once and the ________ parts twice? can someone please help my daughter
*April 5, 2011 by Makayla*

**Social Studies**

Need help figuring out what 3 parts they are talking about in the question: List the 3 parts of the Containment Policy. Thanks...
*March 7, 2014 by Brandi*

**Physics**

A woman driving her car approaches an intersection and begins to accelerate just as the traffic light turns green. Her velocity is the function of time described by the equation: v(t)=2t^2-8t+10 (A) Use calculus to find her instantaneous acceleration at t=8.0seconds (B) Use ...
*June 11, 2012 by Genny*

**Calculus**

Hello, I just wanted to verify if my work was good. Calculate the following integral by parts: ∫ upper limit is 1/5 and lower limit is 1/10. of 10sin^-1 (5x)dx so first I named the variables: u = 10 sin^-1 (5x) du = 50 / sqr(1-25x^2) dv = dx v = x so we get: = 10 sin^-1...
*September 7, 2012 by Robert*

**Kharkutta govt. School**

Split 597 into three parts such that these are in A.P. and the product of the two smallest parts is 796
*October 7, 2013 by Silkhan momin*

**Calculus**

First make a substitution and then use integration by parts to evaluate. The integral of (x^9)(cos(x^5))dx What do you substitute first? I do not understand what they are asking for. Please help. thanks!
*November 11, 2010 by Adam*

**Calculus**

First make a substitution and then use integration by parts to evaluate. The integral of (x^9)(cos(x^5))dx What do you substitute first? I do not understand what they are asking for. Please help. thanks!
*November 16, 2010 by Adam*

**Biology**

what is the lense in the eyepiece of a microscope called? I thought it was just called a lens. However, since this is not my area of expertise, I searched Google under the key words "microscope parts eyepiece" to get these possible sources: http://www.microimaging.ca/...
*November 28, 2006 by sydney*

**statistics**

Suppose a shipment of 500 machine parts contains 62 defective and 438 non-defective machine parts. From the shipment you take a random sample of 25. You are interested in the number of defective machine parts out of 25 trials and corresponding probabilities. I believe the ...
*October 20, 2012 by Brenda*

**Pre Calculus**

There are ten equal parts to a circular track for 2 toy cars and the distance from the inner to the outer is 3.4 inches. What is the width of the track?
*January 29, 2013 by Richard*

**physics**

A mass M is split into two parts, m and M - m, which are then separated by a certain distance. What ratio m/M maximizes the magnitude of the gravitational force between the parts?
*December 6, 2008 by johnny*

**matha school.alleppey**

300 is divided into 2 parts so that half of one part may be less than other by 48.then the parts are?find the linear equation
*June 16, 2013 by jennath*

**math-calculus**

30/x^2-25 = 3/x-5-2/x+5 i be left with 30 = 3x^2-75-2x^2+50 i not sure what to do? i use the quadratic formula? math-calculus - Steve, Saturday, January 7, 2012 at 3:38pm First, you have to simplify properly: 30/(x^2-25) = 3/(x-5) - 2/(x+5) 30 = 3(x+5) - 2(x-5) You were ok ...
*January 7, 2012 by Shreya*

**Quick Calc Question**

I can't remember how to integrate ye^ey with respect to y. Is it (y^2)e^xy? or do i need to do integration by parts? i just cant remember.
*November 4, 2007 by Michael*

**Math**

Find a unit rate for number of parts manufactured per hour if 1628 parts are made in seven hours round to the nearest integer
*March 15, 2012 by Sam*

**Math finance**

I just brought a finanical calculator and i don't really know how to use it yet. The textbook said to calculate the price of the bond: Price=Coupon x Annuity factor (r, T)+ Par Value x PV factor (r, T) I was just wondering how to punch in the annuity factor and PV factor parts...
*December 8, 2008 by Yvonne*

**PLEASE HELP ME!!!**

I have to do a 4 pg report on the mediterranean ineed to know the native plants. please dont give me a full report. i just want the name of the plants and a brief summary. Olive trees are in the warm parts. Some of the plants you see everywhere in most parts of Italy are the ...
*November 15, 2006 by Princess24*

**calculus**

sketching the level curve of f(x,y) = y/(x^2 + y^2) Just wondering if there is a way to get the equation of the line cause I have no clue if im supposed to do it another way or im just rusty and need to review my precalc notes.
*February 25, 2012 by Bryan*

**Calculus**

I have to use integration by parts to integrate tan^-1 (1/x)dx. I'm not sure what to use as u or dv. We were taught to use uv-integral of (vdu) to do this.
*February 15, 2012 by Elaine*

**Algebra**

When you're breaking down the square root in the quadratic formula into several parts- say it was the originally the square root of 80 so you break it down to square root of 4 and square root of 20-would the results be added or multiplyed? Because I know when you further break...
*October 5, 2009 by Peter*

**calculus**

This problem has two parts but I can only see this so far. I probably over thinking..what is this asking for? How do I answer it? To evaluate lim x→ infinity sqrt(x^2 + 4) *first consider that as x becomes infinitely large x^2+4 -> __?__
*September 12, 2012 by maura*

**Definite integral by parts (correction)**

Hello, I just wanted to verify if my work was good. Calculate the following integral by parts: ∫ upper limit is 1/5 and lower limit is 1/10. of 10sin^-1 (5x)dx so first I named the variables: u = 10 sin^-1 (5x) du = 50 / sqr(1-25x^2) dv = dx v = x so we get: = 10 sin^-1...
*September 5, 2012 by Robert*

**math**

Identify the rate,base, and amount in the following application at this point. Business and finance. In a shipment of 750 parts, 75 were found to be defective. ahat percent of the parts were faulty?
*September 3, 2008 by Joe*

**Algebra**

find the unit rate for number of parts manufactured per hour if 1630 parts are made in 6 hours. round to the nearest integer. SHOW ALL WORK.
*November 28, 2010 by Amber *

**calculus**

The region R is defined by 1(</=)x(</=)2 and 0(</=)y(</=)1/(x^3). a) Find the number 'a' such that the line x=a divides R into two parts of equal area. b) Then find the number 'b' such that the line y=b divides R into two parts of equal area.
*January 21, 2010 by Martha*

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