Sunday

December 21, 2014

December 21, 2014

Total # Posts: 1,670

**chemistry**

In a reaction, 25.0 grams of magnesium are added to a beaker containing 75.0 mL of 2.00 M nitric acid, HNO3. Which reactant is limiting? Which is in excess?
*February 17, 2010*

**Algebra Word problem**

Suppose you are an event coordinator for a large performance theater. One of the hottest new Broadway musicals has started to tour, and your city is the first stop on the tour. You need to supply information about projected ticket sales to the box office manager. The box ...
*February 14, 2010*

**english**

wat r prepostions
*February 11, 2010*

**Algebra**

What is the difference between and equation and an expression? Include an example of each. Can you solve for a variable expression? Explain. Can you solve for a variable in an equation? Explain. Write a mathematical phrase of sentence that can be translated.
*February 9, 2010*

**algebra**

How do I perform an indicated operation and reduce to lowest terms? The problem is (-12b^3)^2
*February 9, 2010*

**school**

yes there is , i cant remember the names but i know quite a few
*February 6, 2010*

**Math**

Assume that the weight loss for the first two months of a diet program has a uniform distribution over the interval 6 to 12 pounds. Find the probability that a person on this diet loses between 10.5 and 12 pounds in the first two months.
*February 5, 2010*

**business**

why di business systems still need more development
*February 2, 2010*

**Algebra**

Thank you for your help, however my test is multiple choice and the answers do not correspond with the formulas. a- 1/2,2 b- 1, 4 c- 15/2,-6 d- 15, -12
*January 31, 2010*

**Algebra**

Find the midpoint of the line segment having the given endpoints: (8,-4) and (-7,8)
*January 31, 2010*

**Algebra**

Find the vertical line through (6, -6)
*January 31, 2010*

**Algebra**

Arianna is 25 years older tha Emma. In 15 years, Arianna will be twice as old as Emma. What will their ages be in 15 years?
*January 30, 2010*

**Chemistry II**

If the volume of a cylinder is 1.01 L at STP (0 C and 760 Torr). If the piston is depressed 5.62 cm further into the cylinder, by how many times will the gas pressure increase? What formula would I use to solve this problem? I tried using P1V1 = P2V2, but I don't know how ...
*January 29, 2010*

**Bus/210**

i need to konw about a business scenario
*January 28, 2010*

**english**

gime 30 sentences of ice skating in different tence.
*January 26, 2010*

**chemistry**

Calcium oxalate dihydrate is CaC2O4 2H20. Write the equation for the reaction which will occur when this hydrate is heated to a temperature slightly in excess of 100 degrees C.
*January 26, 2010*

**hca 240**

Write a 150- to 200-word script for a radio ad that promotes a healthy musculoskeletal system in old age. Address the risk factors for arthritis, osteoporosis, and injuries from falls. Incorporate prevention strategies such as proper nutrition (calcium, diet).
*January 25, 2010*

**Math**

I can't figure out 6 - 2/3r = 1 1/2 The way we're learning how to solve it, is by using the LCD. the LCD I use is 6 The book says the answer is 6 3/4 But I keep getting the wrong answer.
*January 25, 2010*

**Early Childhood Growth and Development**

What a child repeats a behavior or action simply to observe that action, you would not infer that
*January 24, 2010*

**physics**

A car travels due east with a speed of 35.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. The traces of the rain on the side windows of the car make an angle of 40.0° with the vertical. Find the velocity of the rain with respect to ...
*January 24, 2010*

**physics**

An astronaut on a strange planet finds that she can jump a maximum horizontal distance of 15.0 m if her initial speed is 2.40 m/s. What is the free-fall acceleration on the planet?
*January 24, 2010*

**physics**

Mayan kings and many school sports teams are named for the puma, cougar, or mountain lion Felis concolor, the best jumper among animals. It can jump to a height of 13 ft when leaving the ground at an angle of 40.4°. With what speed, in SI units, does it leave the ground to...
*January 24, 2010*

**physics**

Mayan kings and many school sports teams are named for the puma, cougar, or mountain lion Felis concolor, the best jumper among animals. It can jump to a height of 13 ft when leaving the ground at an angle of 40.4°. With what speed, in SI units, does it leave the ground to...
*January 24, 2010*

**Art**

I need to unscramble this, dargne
*January 21, 2010*

**Algebra**

Write the equation for the linear equation: x-5 10 15 20 25 30 y-20 30 40 50 50 50
*January 21, 2010*

**Math**

What are the differences between linear and quadratic equations? How are these differences displayed in a graph? Write a brief scenario that can be modeled with a linear equation. Summarize a situation modeled by a quadratic equation. Are there equations that are neither ...
*January 17, 2010*

**Math**

The areas of the faces of a rectangle box are 48 m2, 96 m2, and 288 m2. A second box is cubical and each of its faces has area 16m2. Find the ratio of the volume of the first box to the volume of the second box.
*January 17, 2010*

**Algebra**

What is the difference between domain and range? Describe a real-life situation that could be modeled by a function
*January 12, 2010*

**juvenile justice**

It has to talk about current ones or else it wouldn't ask you to compare the two.
*January 12, 2010*

**juvenile justice**

IN order to answer this question correctly you need your text materials. It will give you the past policies and then you will be able to answer your question.
*January 12, 2010*

**computers**

What security issues must be taken into consideration with regard to an organization’s hardware?
*January 11, 2010*

**computer**

what are types of information systems
*January 11, 2010*

**math**

The area of a triangle is 40cm2. if its height is 5cm, what is its base?
*January 9, 2010*

**college**

I need to write a 3 page paper for my computer class that identify and describe how information systems are used to support the business processes in an organization. I don't know what to write about.
*January 7, 2010*

**Math**

Show that Euler's formula holds for a right pentagonal prism.
*January 7, 2010*

**Math**

Why is it possible for a regular polygon with more than six sides to tessellate the plane?
*January 7, 2010*

**Math**

What characteristics help you determine whether a polyhedron is regular or irregular? How can you check for symmetry and rotational symmetry of polyhedra?
*January 7, 2010*

**7th grade Math**

lalalalala i dont no plzzzzzzzz help haha
*January 4, 2010*

**algebra**

can u explain this more clearly?? i need help and im confused how do i find the length of a rectangle when the area is (R cubed-24R-5) cm sqaured and the width is (R-5)cm ??? how would i be able to get (r^2+5r+1)
*December 29, 2009*

**algebra**

how do i find the length of a rectangle when the area is (R cubed-24R-5) cm sqaured and the width is (R-5)cm ???
*December 29, 2009*

**algebra**

i still dont get how do you divide (3q cubed +q+6)/(q-2) help!=] i also need help in... the volume of a rectangular prism is 2x cubed + x -2. the height of the prism is 2x-1, and the length of the prism is x+2. find the width of the prism. im confused
*December 29, 2009*

**Science**

What is a 7 letter word for a tentacled marine creature
*December 28, 2009*

**algebra**

how do you divide (3q cubed +q+6)/(q-2)
*December 28, 2009*

**Math**

How many different three-digit numbers can be written using digits from the set of 1, 2, 3, 4,5 without any repeating digits?
*December 21, 2009*

**Math**

How many different ways can a teacher line up 5 students for lunch?
*December 20, 2009*

**Math**

A game is played flipping three coins. If all three coins land heads up you win $15. If two coins land heads up you win $5. If one coin lands heads up you win $2. If no coins land heads up you win nothing. If you pay $4 to play, what are your expected winnings?
*December 20, 2009*

**chemistry**

Foe Fe(OH)2, Ksp=8 x 10^-16. What is the molar concentration of OH- in a saturated Fe(OH)2 solution?
*December 18, 2009*

**Biology **

Dr. Paul is blood type O. His father was blood type A and his mother was blood type B. What were the genotypes of his parents and what are the possible blood types and ratios expected for crosses involving these parental genotypes?
*December 14, 2009*

**English**

It sounds a bit awkward to me to be honest because it does not sound like the sentence agrees. I would say something more along the lines "the swirling snows gives you mental blissfulness...?" Not sure if that sounds too great for your poem but hope it helps!
*December 14, 2009*

**TRIG - BEARING PROB.**

-75
*December 14, 2009*

**law**

What are the two main functions of criminal law? Describe the written sources of American criminal law and their purposes.
*December 13, 2009*

**algebra 2**

x(x+3)-18(x+3)
*December 13, 2009*

**Math**

The game of dots is played by rolling a fair die and receiving $1 for each dot showing on the top face of the die. What cost should be set for each roll if the game is to be consdiered a fair game?
*December 12, 2009*

**Math**

On a TV game show, the contestant is asked to select a door and then is rewarded with the prize behind the door selected. If the doors can be selected with equal probabiltiy what is the expected value of the selection if the three doors have behind them a $40,000 foreign car,a...
*December 12, 2009*

**Math**

Suppose that pizzas can be ordered in four sizes(small, medium, large and Illini-size), with three crust choices (thin, thick, and Chicago style), four choices of meat(sausage, pepperoni, hamburger, and none) and two tupes of cheese (regular or double.) How many different ...
*December 12, 2009*

**Math**

What's wrong with the argument that the probability of rolling, a double 6 in two rolls of a die is 1/3 because 1/6 + 1/6= 1/3?
*December 12, 2009*

**math**

how do I solve this unit rate: $11.49 for 3 pacages? I was absent, so I have no clue how to get the answer
*December 9, 2009*

**biology**

5 steps to a scientific method
*December 9, 2009*

**psychology**

I need to do a school paper on positive psychology the subject focus should be emotional intelligence. I can't get started and I've run out of time. writters block, fear.. many concerns but most important I have run out of time. Suggestions please?
*December 9, 2009*

**college Math**

A recent article in a computer magazine suggested that the mean time to fully learn a new software program is 40 hours. A sample of 100 first time users of a new statistics program revealed the mean time to learn it was 39 hours with the standard deviation of 5 hours. At the 0...
*December 7, 2009*

** RESEARCH AND EVALUATION II**

A recent article in a computer magazine suggested that the mean time to fully learn a new software program is 40 hours. A sample of 100 first time users of a new statistics program revealed the mean time to learn it was 39 hours with the standard deviation of 5 hours. At the 0...
*December 7, 2009*

**Science**

An energy convesion makes the telephone a useful machine. Explain.
*December 7, 2009*

**Algebra**

Determine if linear equation is so put into satandard form. 3x = 5y 7y = 2x + 5x 3/x + 4/y = 2
*December 3, 2009*

**algebra 1**

Put into standard form 3/x + 4/y = 2
*December 2, 2009*

**college math**

A box, with rectangular sides, base and top is to have a volume of 4 cubic feet. It has a square base. If the material for the base and top costs 10 dollars per square foot and that for the sides costs 20 dollars per square foot, what is the least cost it can be made for?
*December 1, 2009*

**trig**

find all soultions of the equation sec^s x-1=0 in the interval{0,2pi}
*November 23, 2009*

**Chemistry**

a.cross magnesium and sulfate, sulfate has -2 charge and mg +2 charge, same charges cross out, MgSO4 c.chlorine is Cl -1 charge, beryllium has +2 charge, cross charges, BeCl2
*November 5, 2009*

**finance**

preparing a deposit slip for each day
*October 30, 2009*

**maths PLEASE HELP**

What happened to the grocer who stacked all of the liquid detergent no the high shelf ?
*October 25, 2009*

**maths PLEASE HELP**

how to work out partial fraction decomposition when given 1/x(x^2+1) and 2x-1/(x+4)(x-3) if you could give me an idea of the formula and what changes i need to make to the formula when the denominator changes that would help and please use idiot speak because the text books ...
*October 25, 2009*

**maths**

i think i worked out the second one but i still cant do the first is it = 9/7(x+4)+5/7(x-3)???
*October 25, 2009*

**maths**

how to work out partial fraction decomposition when given 1/x(x^2+1) and 2x-1/(x+4)(x-3) if you could give me an idea of the formula and what changes i need to make to the formula when the denominator changes that would help and please use idiot speak because the text books ...
*October 25, 2009*

**us history**

was the women's movement important because doing the war they were able to take on jobs that were usually worked by men. During this time that fought for the right to vote and better working wages. ( not to sure about this question)
*October 20, 2009*

**us history**

Why was the women's movement so central to social reform during the progressive era?
*October 20, 2009*

**Physics**

All you do is multiply your percentage by gravity...so 0.11*9.8
*October 13, 2009*

**Psy 210**

The following table describes five situations in which a person reacts to stress in an unhealthy manner. For each: a. identify the stressor(s). b. briefly explain why the person's reaction is an unhealthy choice. c. briefly describe one healthy alternative way of reacting ...
*October 10, 2009*

**math**

How long will it take a bus traveling at 60 miles per hour to overtake a car traveling at 40 mph if the car had a 1.5 hour head start?
*October 6, 2009*

**Health**

Discuss coding for obstetrics,including items covered by the global fee for antepartum and postpartum periods of normal pregnancy.
*October 6, 2009*

**ethics 125**

write an essay on the migration and etermination of korean americans.
*October 4, 2009*

**business law**

When there is a unilateral mistake, in what three types of situations may a contract not be enforced? Explain your answer. 20 points
*October 1, 2009*

**Accounting**

I am having the worst time: I need to build a four year projected balance sheet. I've already done my four year profit projection and was wondering if someone could help me with the balance sheet. I did year one, can't go any further: Below is the four year profit ...
*September 29, 2009*

**critical thinking**

How can a problem statement be formulated so that it is considerate of stakeholder's perspectives
*September 26, 2009*

**spanish**

Si ___ el n?ero de mi jefe, le __ para decirle que no puedo ir al trabajo hoy. a)sabr?, llamara b)llamar?, supiera c)supiera, llamar? d)llamara, sabr? __ a la fiesta si __ encontrar un vestido a)apropiado para llevar. b)Viniera, podr? c)Vendr?, pudiera d)Podr?, viniera Pudiera...
*September 25, 2009*

**CRT 205**

How thinking critically will influence the ways you process information.
*September 17, 2009*

**HCA 220**

Does anyone know where I can purchase the HCA 220 textbook for reasonable price?
*September 17, 2009*

**math 116 algebra 1A**

You have to follow the Order of Operations. Try this phrase out. "Please Excuse My Dear Aunt Sally" PEMDAS P=parantheses E= Exponents M=Multiplication D=Division A=Addition S=Subtraction It sounds stupid but it works.
*September 17, 2009*

**earth science**

Thank you!
*September 16, 2009*

**earth science**

What may form when falling precipitation runs off the surface of the ground? Explain how the form of precipitation may affect runoff. I don't understand what they are asking. What do they mean by "What may form?" does it mean like a puddle? or mudslide? or ...
*September 16, 2009*

**math**

i don't know.
*September 13, 2009*

**12th grade**

this is my english class and we are to write on how young people can change the world by their actions.
*September 9, 2009*

**12th grade**

is there any sites that can you can suggest for an essay that I'm doing on how young people who believe in their words and ideas can change our world?
*September 9, 2009*

**grade 7 math**

thank you very much...i wasn't sure if it was correct.
*September 9, 2009*

**grade 7 math**

so...441 = 21 121 = 11 900 = 30 10 000 = 100
*September 9, 2009*

**grade 7 math**

Calculate the dimensions of a square with each of these areas A. 441 m2 b. 121 m2 c 900 m2 d. 10000 cm2
*September 9, 2009*

**math**

graph y-7>-14
*September 8, 2009*

**ACCOUNTING CONFUSED!! HELP**

Andy Wright,D.D.S., opened a dental practice on January 1, 2008. During the first month of operations the following transactions occurred. 1. Performed services for patients who had dental plan insurance. At January 31, $875 of such services was earned but not yet recorded. 2...
*September 3, 2009*

**Chemistry II**

what is the molar mass of a gaseous organic compound with a density of 3.38 g/L at 40oC and a pressure of 1.97 atm? I got 4.41M, is this correct?
*September 2, 2009*

**Chemistry II**

what is the molar mass of a gaseous organic compound with a density of 3.38 g/L at 40oC and a pressure of 1.97 atm? Ok, I am little confused because I am not sure of where to plug in the density and the atm?
*September 2, 2009*

**Chemistry**

Determining the Molar Mass of a Volatile Liquid
*September 2, 2009*

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