Thursday

August 25, 2016
Number of results: 36,545

**Statistics **

I'm stuck on this homework question. If someone can just help get me started with the first one I'm sure I can do the rest. I'm just not sure how to begin. Thanks! 1. A production process produces 90% non-defective parts. A sample of 10 parts from the production process is ...
*April 12, 2015 by Emily*

**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*

**statistics help please :( **

A shipment of 50 parts contains 11 defective parts. Suppose 3 parts are selected at random, without replacement, from the shipment. What is the probability that exactly 2 parts are not defective?
*December 14, 2015 by Izabella*

**Statistics/Binomal**

I really need help I do not understand how to start this problem. A machine that manufactures automobile parts produces defective parts 15% of the time. If 7 parts produced by this machine are randomly selected, what is the probability that at least 3 of the parts are ...
*August 14, 2015 by Mary Ann *

**statistics**

A shipment of 50 parts contains 12 defective parts. Suppose 3 parts are selected at random, without replacement, from the shipment. What is the probability that all 3 parts are defective?
*December 13, 2015 by blah*

**SCIENCE HELP**

How will the spacecraft for this mission be designed? What parts are for overcoming the challenging conditions? What parts are for collecting data? What are other parts of the design? I planned to go to mercury- what do I put:(((
*November 5, 2015 by Areana*

**science PLEASE CHECK MY ANSWERS**

1. 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 animas. c. The soft parts cannot be buried in sediment.>>>my answer d. the soft parts from petrified fossils. 2....
*April 11, 2016 by FluttershyK22*

**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 *

**Statistics**

In a shipment of 21 parts, four of the parts are defective. If three parts are selected at random without replacement, find the probability that : a.) All three parts selected are defective. 4/21*3/20*2/19=.003 b.) None of the tree parts selected are defective. 3/17*2/16*1/15...
*February 26, 2016 by Grace*

**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 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*

**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*

**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*

**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*

**PHYSICS**

An object of mass M is divided into two parts ,which are placed at distance d.if gravitational force of attraction is maximum between parts,then find the ratio of mass of both parts
*April 3, 2015 by Tanya*

**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*

**Calculus**

Evaluate using Integration by Parts. x^2 cos(3x) dx
*November 11, 2015 by Anonymous*

**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*

** 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**

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*

**Calculus**

Use integration by parts to evaluate the definite integral. S 12 x/sqrt of x+4 dx 0
*November 12, 2015 by Justin *

**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*

**math **

im a girl ok um 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? A. 15 B. 30 C. 38 D. 67
*February 25, 2016 by jj buenrostro *

**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 *

**math**

Leah has two same size rectangles divided into the same number of equal parts.One rectangle has 1/3 of the parts shaded,and the other has 2/5 of the parts shaded.What is the least number of parts into which both rectangles could be divided?
*January 5, 2015 by Samuel Reingold*

**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*

**math**

A number is divided into two parts such that one part is 10 more than the other. If the two parts are in the ratio 5:3. Find the number and the two parts
*February 13, 2016 by sim*

**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**

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*

**Math **

In a shipment of 400 parts, 15 were found to be defective. How many defective parts should be expected in a shipment of 1000 parts?
*December 10, 2015 by Megan*

**Math**

One alloy is 2 parts iron to 3 parts silver and another alloy is 7 parts iron to 3 parts silver. How much of each should be combined to produce a 30 pound alloy that is 1 part iron to 1 part silver?Please show me how to do this
*April 14, 2016 by Bob*

**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**

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*

**Calculus**

divide 64 into two parts such that the product of one of them plus the cube of the other is a maximum
*July 28, 2016 by Jj*

**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**

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*

**Quantitative, stastics and business**

A company has three machines A, B and C which all produce the same two parts, X and Y. of all the parts produced, machine A produces 60%, machine B produces 30%, and machine C produces the rest. 40% of the parts made by machine A are part X, 50% of the parts made by machine B ...
*April 24, 2016 by Tofik*

**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**

How do you simplify vectors? 1)AB + BC + CD 2) BC - FE - BA + DE - DC Calculus - Steve, Tuesday, September 22, 2015 at 11:39pm AB+BC = AC so, AB+BC+CD = AD BC-DC = BC+CD = BD See if you can use that idea to rearrange +/- terms so the ends line up in order Calculus - Anonymous...
*September 22, 2015 by Anonymous*

**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*

**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*

**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*

**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(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*

**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*

**Math **

Compare the models for 1/3 and 2/6. How does the number of parts relate to the sizes of the parts?
*January 4, 2015 by Howard*

**math**

compare the models for 1/3 and 2/6. How does the number of parts relate to the size of the parts.
*January 23, 2016 by A*

**Math**

A circle is divided into 8 equal parts. What is the total angle measure of 4 parts?
*January 20, 2016 by Sara*

**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*

**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*

**Math**

a circle is divided into 9 equal parts. What is the angle measure of two of those parts
*February 9, 2015 by Anon*

**Math**

a circle is divided into 9 equal parts. That is the angle measure of two of those parts?
*March 24, 2016 by T*

**parts of speech**

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

**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*

**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*

**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*

**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*

**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*

**Calculus**

First make a substitution and then use integration by parts to evaluate. The integral of (x)(ln(x+3))dx What do you substitute first?
*July 31, 2016 by Anonymous*

**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*

**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*

**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*