Monday

April 20, 2015

April 20, 2015

Number of results: 4,903

**math / linear programming**

Two factories manufacture 3 different grades of paper. The company that owns the factories has contracts to supply at least 16 tons of low grade, 5 tons of medium grade, and at least 20 tons of high grade paper. It costs $1000 per day to operate the first factory and $2000 per...
*January 2, 2007 by Tim*

**statistics**

Among 17 metal parts produced in a machine shop, 6 are defective. If a random sample of four of these metal parts is selected, find: (a) The probability that this sample will contain at least three defectives. (Do not round the intermediate answers. Round your answer to 4 ...
*April 8, 2011 by Kate*

**alg 2**

Given the following functions, perform the indicated operation and state the domain. f(x) * g(x) 3X^1/2*6X^1/3. I got 18X^5/6. But without using a calculator how do i find the domain?????? Thanks:)
*March 18, 2008 by Miley*

**Algebra**

I am in 5th grade and we are to find out who invented the order of operation. I understand how to use it and found web sites, but I am unable to locate who invented it.
*November 27, 2011 by Beau*

**physics**

If 2.00 multiplied by 1020 electrons move through a pocket calculator during a full day's operation, how many coulombs of charge moved through it?
*August 21, 2013 by Justin*

**French**

Please check the sentence for grammar. Son opération préférées dans les mathématiques est la multiplication. I'm not sure about son or sa.
*November 18, 2014 by Anonymous*

**programming**

Can You Please help me understand how to do this and what i have to do to solve the problem.... Please!! Consider the following selection statement where X is an integer test score between 0 and 100. input X if (0 <= X and X < 49) output "you fail" else if (50 <= X ...
*June 11, 2008 by Anonymous*

**heat**

in a gasoline engine the area in the cylinder head where the air and fuel mixture is burned is called the? What is the combustion chamber?
*August 19, 2005 by angela*

**Physics**

How long does it take a 19 kW steam engine to do 6.8x10^7 of work? I have no idea how to solve this... Would someone please help?
*January 29, 2008 by Cassidy*

**physics**

calculate the acceleration of a 2000-kg single air plane just before takeoff when the thrust of its engine is 500 N
*February 5, 2013 by tony*

**algebra**

Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.42 * 10^5 watts cm^2 what is the db?
*November 11, 2013 by lisa*

**Algebra**

Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.50 * 10^5 watts cm^2 what is the db?
*November 7, 2014 by Roger*

**physics**

Please Help!! How much power is developed by a jumbo jet that cruises at 250 m/s. When the trust of its engine is 100,000 N? Thanks!!!
*November 24, 2014 by yena*

**math**

Square cushion measures 65 cm by 65cm and 10 cm thick. I got help of the measurements from 1:20 scale to 3.25 by 3.25 by .5cm I drew out and labeled them. I need help with the next step. The square cushion is made of 3 component parts a top bottom and sides. Draw the cushions ...
*January 7, 2013 by nj*

**Math**

Square cushion measures 65 cm by 65cm and 10 cm thick. I got help of the measurements from 1:20 scale to 3.25 by 3.25 by .5cm I drew out and labeled them. I need help with the next step. The square cushion is made of 3 component parts a top bottom and sides. Draw the cushions ...
*January 7, 2013 by nj*

**Chemistry**

1. What is the percent by mass of a solution that contains 50 grams of solute dissolved in 200 grams of solution? What is the concentration of the same solution in parts per million? 2. What is the percent mass of a solution that contains 75 grams of salt dissolved in 150 ...
*March 25, 2011 by Leora *

**Early Childhood Education**

Appropriate materials and equipment for outdoor play should contain which? 1. a lot of immovable parts 2. some loose parts 3. large,simple,steel units designed for a single purpose. 4. hard,strong surfaces for ground cover Shouldn't the materials and equipment contain a lot of...
*April 2, 2007 by Natasha*

**chemistry ( chemistry lab)**

-'Gasoline engine' what are the waste products form this engine ? what element must gasoline be composed of ? -'fuel cell'what are the waste products from this cell ? what is the fuel used in the fuel cell? MY ANSWERs : - C02 , h20 and heat energy are waste products from ...
*September 10, 2012 by Maria*

**Algebra**

Hi I am in need of help, please... The question says to perform the indicated operation. x^2+2x-3/x^2-9 Divided By x^2-1/x^3-27 I put divided by in the middle to show that it is dividing two rational expressions.
*March 18, 2008 by Jeff*

**gen studies**

identify the advantages and disadvantages of organizational structure. how it affects day to day operation of managing a counseling center for domestic abuse victims
*December 14, 2008 by lele*

**algebra**

Reduce to lowest terms 3x-6/x^2-4x+4 perform operation w^2-1/(w-1)2 times w-1/w^2+2w+1 Find LCD and convert rational express. to equivalent rat. exp. with LCD as the denominator: 4/a-6 , 5/6-a
*February 2, 2009 by allie*

**Science (Ecology)**

I need to search for an organization that works toward Water Development, other than World Water. I have to include what it does, countries of operation and funding
*March 10, 2010 by ...*

**Science**

A 1000-MWe plant uses coal with 3% sulfur content. How many tons of SO2 will be emitted into the air during the operation of the plant for a day?
*February 13, 2013 by Crobar*

**Business plan**

Please give a written example of this question Explain the daily operation of the business its location equipment people process and surrounding environment.
*December 29, 2013 by Anitaq*

**English **

I need help figure out to cite this source that I got on the computer. On google search Operation Just Cause Joint History Office am not sure how to cite it.
*March 27, 2015 by m*

**Physics**

Conventional engines ignite their fuel by using the spark from the spark plug. But in a diesel engine, the air enthers the chamber at the temperature of the atmosphere and is compressed by the piston until it reaches 550 degrees Celsius, at which time the fuel is injected itno...
*December 2, 2007 by Jen*

**physics**

Conventional engines ignite their fuel by using the spark from the spark plug. But in a diesel engine, the air enthers the chamber at the temperature of the atmosphere and is compressed by the piston until it reaches 550 degrees Celsius, at which time the fuel is injected itno...
*December 2, 2007 by Jen*

**Statistics**

The production process of computer parts uses two machines one old & one new. If the old machine is used the probability that the defected part is produced is .13 if the new machine is used the probability that the defective part is produced is .04. moreover, the new machine ...
*October 12, 2011 by Erica*

**math**

im supposed to perform the indicated operation and simplify if possible 49x over 2(7x+1) minus 1 over 2x(7x+1)plus 11 over x
*November 6, 2010 by eric*

**PHY**

A drag-racing car accelerates forward because of the force exerted on it by the road. Why, then, does it need an engine? Explain. what is the answer plz
*May 11, 2012 by MHD*

**statistics**

I want to examine the relationship between gas mileage of cars and the engine size ( displacement in cubic inches). The explanatory variable is?
*September 6, 2012 by Gee*

**statistics**

I want to examine the relationship between gas mileage of cars and the engine size ( displacement in cubic inches). The explanatory variable is?
*September 6, 2012 by Gee*

**math**

Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.65 times 10^-5 watts/cm^2
*March 16, 2013 by Andrew*

**math**

Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.65 times 10^-5 watts/cm^2
*March 17, 2013 by Andrew*

**physics**

A 750 kg rocket accelerates straight upward from the ground at 60 m/s2. What is the force (thrust) provided by the engine? with a gravitational pull of 10 m/s2 down
*February 3, 2014 by Troy*

**Algebra**

find the number of decibels for for the power of the sound given. Round to the nearest decibel. a rocket engine, 2.4 X 10 -5 watts/cm2
*February 14, 2014 by Adrienne*

**FIU**

(1)You are preparing a budget for the month of January and are trying to estimate maintenance cost for the month. The maintenance cost is an overhead cost that is categorized as being mixed – that is it has both a fixed and a variable component. To arrive at the budgeted ...
*March 8, 2011 by omar brown *

**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*

**English**

Swimming Strokes by Lee Carroll Paragraph 1: There is three types of strokes you must master if you want to be a proficient swimmer: the crawl stroke, the breast stroke, and the backstroke. These three strokes will help you deal with almost all the situations people will ...
*March 22, 2011 by katelyn*

**college alg help!**

cannot figure a way to do this problem: An investment of $98,000 was made by a business club. The investment was split into three parts and lasted for one year. The first part of the investment earned 8% interest, the second 6%, and third 9%. The total interest from the ...
*November 18, 2010 by alexandra*

**Statistics**

Suppose you were in charge of advertising for an automotive dealership when the gas prices increased to $4 per gallon. Most of your cars are fuel-efficient, but you have two models that have extremely poor fuel economy, that is, a low number of miles per gallon. How would you ...
*January 16, 2013 by Maimee*

**Math**

Perform the indicated operation by hand. Show or explain your steps. 17.525 ÷ 25? Am I supposed to move the decimal over one? If I do then the answer is 7.01, if I don't then the answer is 0.701. I am confused.
*October 17, 2009 by Anonymous*

**ipc**

Two metal balls have their centers 2.0 meters apart. One has a mass of 6.0 kg and the other has a mass of 8.0 kg. Choose the operation that will calculate the gravitational force between them.
*February 26, 2010 by kassandra casias*

**Math 7 - Extra Credit Project**

Which source that tells how to do order of operation step by step. I'm making a booklet explain how to do it. I'm also going to make it pretty and creative.
*December 29, 2011 by Lauren *

**Chem 221**

I know during the preparation of synthetic banana oil the gas that was released was CO2, but what are the balanced equations for two reactions that took place during the operation?
*February 27, 2013 by Jazzmine*

**Algebra**

The following is a report of defective parts reported by inspectors in 3 electronic factories: Brookline= 3 per 10,000 Brookville= 5 per 100,000 Brooklyn= 13 per 1,000,000 Which of the following best expresses the portion of defective parts in three factories combined: (A) 5 ...
*August 17, 2014 by Nozomi*

**Algebra**

I am having trouble with -4less than or equal to -3x-13 less than or equal to 26 -4 < -3x-13 < 26 Add 13 to all three parts of the inequality. 9 < 3x < 39 Divide all three parts by 3. 3 < x < 13 The < signs should all be "less than or equal, but I can't ...
*March 14, 2007 by Kim*

**matsh**

The picture below shows a figure in the complex plane, consisting of two circles of radius 1, with centers (3,0) and (−3,0) and a lower half of the circle of radius 2 with the center (0,−23√). Find the number of positive integers n≤1000, such that for ...
*June 23, 2013 by Anonymous*

**Parts of Speech**

I had a list of 50 words to change the parts of speech of. I got most of them but I can't seem to find these anywhere. Conjure - change to a noun and adj. pernicious - change to a noun and verb diffident - change to a noun and verb lament - change to an adj. rancor - change to...
*September 24, 2007 by Samantha*

**Physics**

The Spent Rocket Parts: During launches, rockets often discard parts. A certain rocket starts from rest on the launch pad and accelerates upward at a steady 3.3 m/s2. When it is 235 m above the launch pad, the rocket discards a used fuel canister by simply disconnecting it. ...
*November 20, 2012 by Zalak*

**Statistics Behavior Science**

Suppose you were in charge of advertising for an automotive dealership when the gas prices increased to $4 per gallon. Most of your cars are fuel-efficient, but you have two models that have extremely poor fuel economy, that is, a low number of miles per gallon. How would you ...
*February 19, 2012 by Ariah*

**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*

**Math**

Jocelyn made a spinner If Jocelyn spins only one time what is the probability that the arrow will not land on a red section of the spinner? 3 parts are red 4 parts are blue 1 part is white A.1/8 B.5/8 C.3/8 D.1/2 B Palmer participated in sports for 8 hours and drama for 5 ...
*April 16, 2013 by Jerald*

**ms.sue and SraJMcGin**

it isnt showing what you said. i put in the search engine education programs in wiscon sin for high school drop outs
*May 31, 2009 by scooby91320002*

**Physics**

A racing car with mass (including the driver) of 900 kg accelerates from rest to a speed of 200 km/hr in 6 seconds. what is the power output of the engine?
*September 4, 2012 by Ftin*

**math **

Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.33 10−5watts/cm2
*June 5, 2013 by tekeria*

**math**

Find the number of decibels for the power of the sound given. Round to the nearest decibel.A rocket engine, 2.42 * 10^−5 watts/cm2
*November 11, 2013 by Anonymous*

**Maths**

Find the number of decibels of sound produced by a jet engine at a distance of 50 metres if the intensity is 10 watts per square metre.
*February 15, 2014 by Donna*

**U.S. History**

Which invention was the basis for the major developments in American transportation? a.steam engine ** b.wagon axle c.canal lock d. gold spike
*February 17, 2014 by Anonymous*

**Technology**

i'm not really sure about this answer, because i didn't find it in my book. i think i'm correct. please check: 10. A wrench uses the principle of a(n)__________ in its operation. a. lever b. inclined plane c. pulley d. wheel and axle B?
*October 27, 2009 by y912f*

**Physics**

A car of mass 1200kg starts from rest, accelerates uniformly to a speed of 4.0 meters per second in 2.0 seconds and continues moving at this constant speed in a horizontal straight line for an additional 10 seconds. the brakes are then applied and the car is brought to rest in...
*December 4, 2012 by Ken*

**Math**

Given P (x) = x-1/ 2x-3, Find P (-2) The notation P(-2) for your given P(x) means that wherever you see an x, replace it with -2, then evaluate so P(-2) = (-2-1)/-4-3) = -3/-7 = 3/7 (The way you wrote your expression, according to the order of operation, would be P(x) = x - (1...
*July 24, 2007 by Nicole Maberry*

**Health/ Basic Clinical Procedures**

please check my answer thanks True or False the review of systems is a history of the patient's previous diseases, injuries and operation . I said False
*April 20, 2008 by Helana*

**math**

with clear illustrations and examples explain how arithmetic and geometric progression can be used to solve problems related to a)construction of business b)banking business c)production/operation function
*December 11, 2010 by shadrack*

**Pre-Calculus**

Perform the indicated operation, then simplify. 5a2 + 12a + 4/a4 − 16 ÷ 25a2 + 20a + 4/a2 − 2a I think I'm supposed to switch the top and bottom, and then multiply. Is this correct?
*September 11, 2013 by Anonymous*

**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*

**Personification**

Think of two things that can have human body parts substituted for their own. What parts does a clock have that a human body has? Now use the objects you though of in a line of poetry. The face of Big Ben watches over the city of London. Big Ben's hands showed that it was ...
*January 15, 2009 by Larry*

**Mathamatics**

Choose the two true statements from the following. Options A) If the rate of inflation as measured by the RPI is 2%, then a pension index linked to the RPI will increase by 2%. B) A price ratio of 0.8 corresponds to a price decrease of 80%. C) If the price of transport rises ...
*June 4, 2010 by S Rey*

**Calculus**

A machine earns the company revenue at a continuous rate of 62000 t + 43000 dollars per year during the first six months of operation, and at the continuous rate of $74000 per year after the first six months. The cost of the machine is $155000. The interest rate is 5.5% per ...
*April 15, 2008 by Jackie*

**math**

Whatwould be the answer 3+9+6+52x963+??? The answer depends upon where you put the parentheses. The order of operation makes a big differnece The answer depends upon where you put the parentheses. The order of operation makes a big differnece I agree with drwls...... But, ...
*February 23, 2007 by Crystal*

**programming**

I am in IT/210 and am having problems with the entire class. But what I am stuck on is as follows: Consider the following statement where X is an integer test score between 0 and 100. input X if (<0=X and X<49) output = "you fail" else if (50 <=X and X < 70) output...
*April 7, 2010 by Sandy*

**Business**

Thomas Kratzer is the purchasing manager for the headquarters of a large insurance company chain with a central inventory operation. Thomas’s fastest moving inventory item has a demand of 6000 units per year. The cost of each unit is $100.00, and the inventory carrying cost is...
*September 20, 2010 by Jackson*

**System Operations management**

Your boss has asked you to help new employees understand uses of data in systems-operation management and the various statistical process controls they will experience on a daily basis
*December 14, 2010 by Mayra Rosado*

**PreCalculus II**

perform the indicated operation (3sinx-2)(sinx+1) I need someone who can help me to understand what I am supposed to be doing with this problem, a step by step would be increasingly helpful so that I can apply it to other problems like this.
*January 30, 2013 by Amber Lance*

**Social Studies**

According to Procopius two sixth century Christian monks undertook an elaborate smuggling operation to provide Byzantium with the expertise to produce what? A) steel B) iron C) ceramics D) gun powder E) silk
*March 2, 2009 by Kathryn*

**physics**

An engine provides a 10kw of power to lift a heavy load at a constant velocity a distance 20m in 5s. what is the mass of the object being lifted?
*April 7, 2011 by Anonymous*

**physics**

Assuming maximal power output, how long, in seconds, would it take a 1,535 kg car with a 128 hp engine to accelerate from 50 km/h to 102 km/h? (1 hp = 746 W)
*November 8, 2011 by Lydia*

**algebra**

Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine,2.44 cross 10^(−5)watts/cm2.
*May 12, 2013 by Tierra*

**algebra**

Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.67 cross 10−5watts/cm2
*August 26, 2013 by Anonymous*

**algebra**

Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.54 cross 10−5 watts/cm2
*February 8, 2014 by samuel louijeune*

**math**

Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.42 cross 10−5 watts/cm2
*May 23, 2014 by tasha*

**algebra**

Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.42 cross 10−5 watts/cm2
*May 29, 2014 by Mary Ann *

**algebra**

Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.42 cross 10−5 watts/cm2
*May 29, 2014 by Mary Ann *

**math**

Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.37 cross 10−5 watts/cm2
*June 5, 2014 by neal*

**physics**

Please Help. I am not sure how to set up or do this problem. Thanks A car is traveling along a road, and its engine is turning over with an angular velocity of +199 rad/s. The driver steps on the accelerator, and in a time of 14.2 s the angular velocity increases to +263 rad/s...
*October 28, 2010 by bethany*

**PHYSICS**

A car is traveling along a road, and its engine is turning over with an angular velocity of +199 rad/s. The driver steps on the accelerator, and in a time of 14.2 s the angular velocity increases to +263 rad/s. (a) What would have been the angular displacement of the engine if...
*October 29, 2010 by JOHN*

**Physics**

A car is traveling along a road, and its engine is turning over with an angular velocity of +190 rad/s. The driver steps on the accelerator, and in a time of 13.0 s the angular velocity increases to +300 rad/s. (a) What would have been the angular displacement of the engine if...
*November 1, 2014 by Sanz*

**French**

2. you will also need to include 8 colorful adjectives to describe your body and face. For example: you can write "les jambes jaunes, les yeux verts... Remember to make sure that your adjectives agree with the gender and the number of the body parts you are describing. You ...
*September 30, 2009 by Anna*

**physics**

How much work can a 22 kW car engine do in 60 seconds if It is 30% efficient It is 100% efficient
*May 8, 2012 by Melissa*

**physics**

A heat engine receives 7.0 x 10^3 J of heat and loses 3.0 x 10^3 J in each cycle. What is the efficiency? 1-30% 2-43% 3-57% 4-70% 5-100%
*February 24, 2014 by shirly*

**math**

Operations with scientific notation Perform the indicated operation. Each final answer must be written in scientific notation. 1. (2.34*10^5)*(-4*10^-8) 2. (4*10^3)*(4.5*10^-3) 3. (5*10^5)*(4.3*10^2)
*January 17, 2008 by shay*

**Social Studies**

List one example of economic,social & political development. List five benefits of co-operation.
*February 3, 2009 by Rhonda*

**geog**

what heat engine transfers heat energy from the tropics to the poles?
*February 27, 2011 by anonymous*

**College English**

I work for a large company. My boss was fired and I get promoted. I must do a power point to address a customer issue. A client was promised 10,000 bolt cups to use in their new truck engines. The parts were received for us to manufacture, but they were flawed. It took 2 ...
*October 31, 2010 by Maurice D*

**literacy**

which search engine would be best to use for a broad search for scholarly literature
*October 8, 2012 by which of the following is an article from a popular magazine*

**Computer Literacy **

A strong search strategy for a search engine would include which of the following?
*April 3, 2013 by Anonymous*

**internet basic**

All of the following search engines are meta-search engine with the exception of
*June 12, 2014 by coral*

**Algebra**

Perform the indicated operation and state the domain. Let f(x)=x-1 and g(x)=x+1 f(x) - g(x) Heres my work (x-1) - (x+1) x-x=0 and -1-1=-2 Answer =-2 because the x's cancel each other out. How do i find the domain when there is no x in the answer?
*April 10, 2011 by Maya*

**math**

what is 10^3 ( )9^2 ( )190 = 10. i try to work it out;( 1000 - 190 ) divided by 190 = 10 But when i think about BODMAS then i do not know how to choose the correct operation to make this statment true,can u help me please ,thanks
*April 18, 2013 by rica*

**English, about my essay**

Hi, thanks for your kind reply. I am following MLA format, except some parts need to be underlined ("Welcome" IRRI) -> IRRI has to be underlined, but this site doesn't have underlines, i think. My teacher told me that what I did was write, so that's ok. English is my second...
*February 11, 2009 by Jennifer*