Thursday

September 18, 2014

September 18, 2014

Total # Posts: 804

**Chemistry**

Besides the fact that it would reduce pollution, why would a hydrogen fuel based car be a better choice than a regular gasoline fosil fuel vehicle?
*April 13, 2011*

**science**

How many pounds of pressure does a 25 pound baby weigh in a head on collision when the car is traveling at 25 miles per hour. (and hits a stationary object)
*April 12, 2011*

**MATH**

IF A DOOR MEASURES 42" WIDE BY 84" TALL CAN A TABLE MEASURING 96" IN DIAMETER FIT THROUGH?
*April 7, 2011*

**Discrete Mathematics**

Step 1 Set a=1, b=1, c=2,and k=0 Step 2 while k < n (a) Replace c with a+b (b) Replace a with b (c) Replace k with k+1 endwhile Step 3 Print b
*March 30, 2011*

**C++**

For each of the following problems, write a program or a program segment that performs the specified action.Each problem refers to class Polygon (Fig. L 11.15). This class contains a dynamically allocated array of x-coordinates and a dynamically allocated array of y-...
*March 29, 2011*

**social studies**

I need a poem about the battle of lexington and concord.
*March 28, 2011*

**algebra**

how to: graph , substitution, and elimination y=2x+5 y=2x-8
*March 27, 2011*

**chemistry**

What quantity of solid compound? 300ml of 4% (w/v) ammonium chloride.
*March 23, 2011*

**human resources**

My book sure doesn't, that's why I'm searching the internet looking for help.
*March 22, 2011*

**USSO**

Please explain why the British Colonists in North America sought separation from the British Empire in1776. Explain not only the events that led up to the Revolution but the ideas that the colonists used to interpret these events and how they ultimately justified the War of ...
*March 16, 2011*

**math**

The president of the country PTA organization makes copies of membership lists for all of the elementary schools. Sometimes she may need only few copies but at other times she needs thousands of copies. TIP copy Service charges 3 ½ cents per copy plus a 42.00 set up ...
*March 14, 2011*

**math**

[][][][][] [] [] [] it looks like this
*March 14, 2011*

**math**

i dnt get ti ...this is so cionfusing
*March 14, 2011*

**math z score**

find the z score corrsponding to a score of X = 100 the mean = 80 and the standard devation = 5
*March 8, 2011*

**statistics**

find the z score corresponding to a score of X = 100 for a mean = 80 and standard devation of 10
*March 8, 2011*

**math**

In a department store, there were a certain number of red T-shirts, blue T-shirts, and yellow T-shirts. 3/7 of the T-shirts were red, 1/3 of them were blue and the rest were yellow. If there were 20 more red T-shirts than blue T-shirts, how many yellow T-shirts were there?
*March 7, 2011*

**geology**

Given a scale of 1:24,000: A. What is the ground distance in feet represented by three inches on the map? 72000in 6000ft B. What is the ground distance in meters represented by 5 cm on the map? 120meters C. How about the ground distance in kilometers represented by 5 cm on the...
*March 6, 2011*

**Statistics**

In a single toss of a fair die, what is the probability of obtaining an even number divisible by three?
*March 2, 2011*

**binominals **

multiply using FOIL - First Outer Inner Last. y^2 + 3y + 7y + 21. Now combine like terms to get y^2 + 10y + 21
*February 23, 2011*

**Math**

A 3 foot long pole leans against a wall. The bottom is 5 feet from the wall. How much farther should the bottom be pulled away from the wall so that the top moves the same amount down the wall?
*February 23, 2011*

**stats**

a die is rolled 10 times. find the chance of.... a)not getting 10 sixes b)all the rolls showing 5 spots or less I'm not sure how to do either, but for b, I think is it (5/6)^10 because each time there is a chance that the number will be 5 or less? Please help. thank you!
*February 22, 2011*

**science**

Does it take more effort to get up and walk a rolling chair accross the room than it takes to sit and scoot it accross the room Karen
*February 16, 2011*

**Physics**

Galileo threw a large rock upward from a tower balcony at an angle of 25.0o above the horizontal with an initial speed of 15 m/s. If the rock hits the ground 3.0 s later, how high above ground was the rock when it left Galileo’s hand?
*February 15, 2011*

**Science**

How was their small size helpful to the mammals of the Mesozoic?
*February 7, 2011*

**math300**

Run the simulation using n = 30 and N = 10 for a uniform, a bell-shaped, and a skewed distribution. Identify the mean of the sampling distribution of sample means for each distribution. Evaluate if the results are what you expected for each distribution. Run the simulation ...
*February 6, 2011*

**english**

Which words/phrase in this sentence is misplaced? Having been discovered, Rover looked up at his owner with puppy-dog eyes. a. with puppy-dog eyes b. been discovered c. his owner d. rover looked up I am torn between (a.) and (c.). Since the answer (c.) says "his owner&...
*January 28, 2011*

**english**

talking about the right to vote
*January 25, 2011*

**english**

i need help on describing women's suffrage
*January 25, 2011*

**algebra**

perform the indicated operation 75/80=15/16
*January 11, 2011*

**math**

7/12m + 2 is less but equal to 16 SOLVE!!!
*January 10, 2011*

**Calculus**

y=0^2+1/0^2+9 y = 1/9 y intecept
*January 10, 2011*

**English**

I was to write 2 paragraphs on how interest rates affect our purchasing decisions and underline the topic sentence of each one. I would like to know if my prargraphs are okay and if I chose the TS correctly. Since I dont know how to underline here the topic sentences I chose ...
*January 9, 2011*

**Math**

Is the numbers 5,12,26 a arithmetric or geometric or neither
*January 5, 2011*

**business**

#28 The following is a partial ANOVA table. Sum of Mean Source Squares df Square F Treatment 2 Error 20 Total 500 11
*January 5, 2011*

**arithmetic**

what does 2.75+.003+.158=
*December 22, 2010*

**physics**

A 2kg ball attached to the ceilling with a string is released and swings back and forth. Assume there is no air resistance. At the bottom of the path the lowest point the velocity is 4m/s. What is the velocity when it returns to the lowest point
*December 20, 2010*

**English**

Thank you so much! I have a really hard time with these!!!
*December 17, 2010*

**English**

Adjectives/Adverbs I need to underline the adjectives and bold the adverbs. Just need help if I did it correctly. Since this doesnst let me do underline and bold I will make the adjectives in () and the adverbs in ** Thanks I have had both *good* and *bad* experiences with ...
*December 17, 2010*

**math**

Please help! Car traveling at 35 MPH traveling 900'...how long to stop? Car traveling at 90 MPH traveling 900'...what is the difference on impact????
*December 17, 2010*

**Managerial Economics**

You are considering setting up a software development business. To set up the enterprise you will need to buy equipment costing $100,000. This equipment will be depreciated straight line over 5 years to a zero salvage value. Its market value at the end of the 5 years will be ...
*December 14, 2010*

**Math**

If a monkey falls from a 94 foot tree, how long does it take him to hit the ground.
*December 3, 2010*

**Chemistry**

A, C, E, and F are true
*December 1, 2010*

**physics**

What force is needed to accelerate a child on a sled with the total mass of 43kg at 1.5m/s
*November 30, 2010*

**math**

how do you convert fractions to decimals.
*November 22, 2010*

**grammar**

Thanks!
*November 21, 2010*

**grammar**

Wondering if I have correctly identified each verb in the following sentences: The role of education plays (simple present) a major role in successful financial planning. My Personal Finance class is helping (progressive present) me to learn how to budget successfully. I have ...
*November 21, 2010*

**Algebra 2/Math**

Can you check these thanks. Solve the system by substitution or elimination. 2x+y=1 3x-y=14 Answer: (3,5) x-3y= -12 2x + 11y= -7 Answer: (39,17) 4x+2y=8 12x+6y=24 Answer: no solution 4x-2y=5 2x-y= -1 Answer: no solution 4a+3b =6 8a-b= -9 Answer: no solution
*November 20, 2010*

**Physics**

A ceiling fan is rotating at 0.70 rev/s. When turned off, it slows uniformly to a stop in 2.9 s. (a) How many revolutions does it make in this time? (b)Using the result from part (a), find the number of revolutions the fan must make for its speed to decrease from 0.7 rev/s to ...
*November 16, 2010*

**algebra 2**

Find the rule for the quadratic. The h =24ft. The pumpkin retuerns to the ground after 6 seconds. Hint: wat is the height when it hits the ground? Use h +vt-16t^2
*November 16, 2010*

**physics**

a 2 liter bottle rocket has a thrust phase on .25 sec. The rocket goes straight up, reaches its apex, then plunges straight down. Total time is 8 sec. How do I calculate height, velocity and acceleration???
*November 15, 2010*

**history**

6. Which of the following accurately characterizes a difference in the way the House and Senate operate? (Points : 1) The House is more formal than the Senate. The Senate leadership is more powerful than the House leadership. Authority in the Senate is concentrated while ...
*November 11, 2010*

**7th grade Math**

how are the comparison methods juan uses similar to the method you use to compare the sizes and shapes of similar figures?
*November 10, 2010*

**Geometry**

what is the supplement of B if B=(3x-16)?
*November 6, 2010*

**Math**

Make your own equation. 1. A number is 6 times another number. The sum of the two numbers is 56. @. Donna has twice as many coins as Cathy. When Donna gives Cathy 2 coins, they each have the same number. How many coins do they each have? Let the number of coins that Cathy has ...
*November 5, 2010*

**ALGEBRA**

yes that is correct then on the graph it would be a filled in circle at -6/7 going to the right.
*November 4, 2010*

**ALGEBRA**

That is correct! good job! :)
*November 4, 2010*

**science**

what is the structure formula for the acrylate ion?
*November 4, 2010*

**math**

^ that is correct! because 2/1=2 and 2 is greater than 1/3
*November 4, 2010*

**science**

thanks that helped! also what is the structure formula for the acrylate ion?
*November 4, 2010*

**science**

why does the addition of acetone cause the polystyrene to change shape?
*November 4, 2010*

**English- **

I posted earlier but i wanted to added something... I need have to find a song that share similar views as Transcendentalists Here are some views of the Transcendentalists: -Intuition -they think we can understand ourselves through nature. - Individualism(the fact of being ...
*November 1, 2010*

**English**

do u think unwritten by natasha bedingfield represents it well?
*November 1, 2010*

**English**

thanks. do u by chance know any recent songs like in the last 10 years that follow those views?
*November 1, 2010*

**English**

I need some ideas of novels,songs,comics etc.(preferebly a song) that share similar views as Transcendentalists Here are some views of the Transcendentalists: -Intuition -they think we can understand ourselves through nature. - Individualism(the fact of being true to yourself...
*November 1, 2010*

**english**

Which group of words in the sentence is misplaced? Having been discovered, Rover looked up at his owner with puppy-dog eyes. a. with puppy-dog eyes b. been discovered c. his owner d. Rover looked up
*October 31, 2010*

**chemistry**

Glauber's salt undergoes a phase transition according to the following equation: Na2SO4*10H2O(s)--> Na2SO4*10H2O(l) DH = 74.4 kJ/mol Calculate the mass (g) of Glauber's salt (use the masses to two decimal places found in the front of your text) needed to lower the ...
*October 24, 2010*

**Literature/The Crucible**

Can you help me with these two questions thanks. Acts 1 and 2 Cause and effect relationships The Crucible Directions: Fill in the blanks to show what happened (effect) as a result of specific action (cause) 1. Because Sarah Good had mumbled in Mary Warren's hearing, then...
*October 21, 2010*

**Algebra/Math**

Can you check these for me. Directions: Find the slope of the line that passes through each pair of points. 1. (3,-8) and (-5,2) Answer: -10/8 2. (-10,-3) and (7,2) Answer: -5,-17 3. (-7,-6) and (3,-6) Answer: 9 4. (8,2) and (8,-1) Answer: 0 undefined Directions: State whether...
*October 17, 2010*

**Basic Math**

How do you convert 11.4mm into cm^3? I know it's simple, but I forgot. Thanks.
*October 13, 2010*

**math**

how could you show five less than a number using an expression?
*October 12, 2010*

**Chemistry**

Is DrBob222 available tonight? Please let me know, I need some chem help.
*October 11, 2010*

**Chemistry**

A total of 2.00 mol of a compound is allowed to react in a foam coffee cup that contains 141 g of water. The reaction caused the temperature of the water to rise from 21.0 to 24.7 degrees Celsius. What is the enthalpy of this reaction? Assume that no heat is lost to the ...
*October 11, 2010*

**Chemistry**

A 1L flask is filled with 1.25 g of argon at 25 degrees celcium. A sample of ethane vapor is added to the same flask until the total pressure is 1.45 atm. What is the partial pressure of argon in the flask?
*October 5, 2010*

**Chemistry**

A 1.994-g sample of gypsum, a hydrated salt of calcium sulfate, CaSO_4_, is heated at a temperture greater than 170 degrees C in a crucible until a constant mass is reached. The mass of the anhydrous CaSO_4_ salt is 1.577g. What is the mass percent of water in the hydrated ...
*October 4, 2010*

**3rd grade math**

draw a number line. make sure the following numbers are on the line: 1,472; 1,560, 1,481
*September 28, 2010*

**college (media culture & society)**

I need to elaborate on the points below: Mtv & popular culture: 1. testing ground for film techniques 2. promotes film not just music 3. introduces female performers, resistance and identity. 4. ground for social activism 5. standard in the advertising industry 6. addoptive ...
*September 25, 2010*

**math**

Kelly subtracted 2.3 from 20 and got 17.7. Explain why this answer is resonable.
*September 21, 2010*

**Physics**

your wrong you have to convert to kilograms first because that is the SI unit for Newtons. So maybe you need a tutor
*September 16, 2010*

**midway**

How do you write 67,000 in expanded form?
*September 15, 2010*

**reimbursement methodologies**

you're reviewing reimbursement for a Medicare surgical craniotomy case. the case falls into DRG 1, which has a relative weight of 3,0970 and a geometric mean length of stay of 6.3. the hospitals's current standard reimbursement rate $1500. calculate the DRG ...
*September 12, 2010*

**World Studies**

What is the region of North America where the vikings landed?
*September 6, 2010*

**Math **

a ball rebounds 1/2 of the height from which it is dropped. The ball is dropped from a height of 136 feet and keeps on bouncing. How far will it traveled when it strikes the ground the third time?
*August 29, 2010*

**college**

How do I download the ABC Health HIM organizational chart?
*August 20, 2010*

**statistics**

Suppose that about 20% of those called will find an excuse (work, poor health, travel out of town, etc.) to avoid jury duty. If 14 people are called for jury duty, what is the probability that all 14 will be available to serve on the jury? Round your answer to three decimal ...
*August 20, 2010*

**statistics**

Is the magnitude of an earthquake related to the depth below the surface at which the quake occurs? Let x be the magnitude of an earthquake (on the Richter scale), and let y be the depth (in kilometers) of the quake below the surface at the epicenter. Suppose a random sample ...
*August 20, 2010*

**statistics**

Find the sample variance s2 for the following sample data. Round your answer to the nearest hundredth. x: 23 17 12 35 29 a. 84.20 b. 67.36 c. 101.00 d. 88.84 e. 126.25
*August 20, 2010*

**statistics**

Consider the data that was obtained from a random sample of 45 credit card accounts. Identify all the averages (mean, median, or mode) that can be used to summarize the outstanding balance on each account. a. mean, median, and mode if it exists b. only median if it exists c. ...
*August 20, 2010*

**science**

correct c - a metamorphic rock formed from shale is slate
*August 20, 2010*

**science**

b) crust
*August 20, 2010*

**statistics**

The director of the campus-computing center did a study to determine the patterns of student computer usage. He found that 15% of the total student computer hours occurred during the first 5 weeks of the term, 25% during the middle five weeks, and 60% during the last 5 weeks. ...
*August 20, 2010*

**statistics**

Find the sample variance s2 for the following sample data. Round your answer to the nearest hundredth. x: 23 17 12 35 29
*August 20, 2010*

**statistics**

Given the following scatter diagram , the sample correlation coefficient r: Has a positive linear correlation Has a negative linear correlation. Has little or no correlation. Looks close to + 1.00
*August 19, 2010*

**math**

That's what I got too !!! May be it's a trick question - Thank you for trying
*August 19, 2010*

**math**

I have 10 boxes and 44 marbles .Can I put my marbles in the boxes so that each box contains a different number of marbles?
*August 19, 2010*

**statistics**

Do bonds reduce the overall risk of an investment portfolio? Let x be a random variable representing annual percent return for the Vanguard Total Stock Index (all Stocks). Let y be a random variable representing annual return for the Vanguard Balanced Index (60% stock and 40% ...
*August 17, 2010*

**statistics**

What is meant by the 95% confidence interval of the mean ? That 95% of my sample is OK to do more tests. That I am 95% confident that the confidence interval will contain the parameter being estimated. That 5% of my sample is not OK. That I am 95% sure that the population mean...
*August 17, 2010*

**math**

find the z-score of 78.5%. This was all the info given for the question and i have no clue how to figure it
*August 13, 2010*

**Science**

The independent variable is D (The material the cups are made of). An independent variable is what is changed! The amount of water in each cup is the same...50mL, so that is the control group.
*August 4, 2010*

**english**

A project design has been approved by management. The engineering team is about to start production of the new line. I want to be sure this process goes by smoothly. I need to come up with a communication plan to address successful development and delivery of the new product
*August 2, 2010*

**History 1301**

How did human history in North America during the period described in the Prologue differ from the events of Asia, Eurasia, and Europe? Be specific. How were these differences important to the international state of affairs in 1450?
*July 19, 2010*

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