Tuesday

March 3, 2015

March 3, 2015

Total # Posts: 712

**Chemistry**

A chemist ran the reaction and obtained 5.70 of ethyl butyrate. What was the percent yield? How do I solve this problem?
*December 6, 2011*

**4th grade math**

Is 1,725+346 more or less than 2,000? Explain how you can tell without actually adding.
*December 1, 2011*

**4th grade**

Explain how you would use front-end estimation to subtract 189 from 643.
*November 30, 2011*

**Chemistry**

Determine the final end (final) value of n in a hydrogen atom transition, if electron starts in n = 1 and the atom absorbs a photon of light with an energy of 2.044 X 10^-18J? A) 3 B) 4 C) 2 D) 6 E) 5
*November 28, 2011*

**math**

there are 7 red balloons and 4 fewer blue ballons. use cube trains to model the set of ballons.
*November 18, 2011*

**algebra**

During the first part of a trip, a canoeist travels 69 miles at a certain speed. The canoeist travels 2 miles on the second part of the trip at a speed 5 mph slower. The total time for the trip is 3 hrs. What was the speed on each part of the trip?
*November 16, 2011*

**english**

What is the def. Of the word thing-a-ling how how to put it into a sentence. Can not find in dictionary.
*November 14, 2011*

**chemistry**

0.386M
*November 6, 2011*

**chemistry**

Calculate the volume of 1.60 in milliliters that contains 6.00 of solute.
*October 29, 2011*

**Algebra, Geo and Measurement**

The diagonal of a tv screen is 21 in. The television's diagonal forms angle "m", which measures 50 degrees. What is the height of the screen?
*October 21, 2011*

**Math**

a) f(x) = 4.1x +92.16 b) f(x) = 17.9x + 19.36 c) f(x) = 8.8x + 55.4 ANSWERS: a) 4.8 b) 0.93 c) 2.2, i just have no clue how they got these answers EXTRA INFO: The demand function for a new product is p(x)= - 4x +42.5, where x is the quantity sold in thousands and p is the ...
*October 20, 2011*

**Math**

a) f(x) = 4.1x +92.16 b) f(x) = 17.9x + 19.36 c) f(x) = 8.8x + 55.4 ANSWERS: a) 4.8 b) 0.93 c) 2.2, i just have no clue how they got these answers EXTRA INFO: The demand function for a new product is p(x)= - 4x +42.5, where x is the quantity sold in thousands and p is the ...
*October 20, 2011*

**math**

arrays and an expanded algorithm 23*17
*October 10, 2011*

**Math**

Kosuke wrote a mathematics contest consistingof 25 multiple choice questions, the scoring system gave 6 points for a correct answer, 2 points for not answering, and 1 point for an incorrect answer.Kosuke got x correct and left y unanswered questions a) write an expression for ...
*October 9, 2011*

**Psychology**

I have to examine at least two mental disorders and two mental illnesses from the perspective of psychology. Do you know of any sites that can help me with this. Thank you.
*October 5, 2011*

**social studies**

I don't believe that punishment can be positive, using the usual definitions. Do you mean reinforcement?
*October 1, 2011*

**algebra**

2x-18=1/2x
*September 21, 2011*

**Biology**

Since Golgi bodies create lysosomes which are used in cellular digestion, b is correct. Since A is Mitochondria and that is used for energy production (ATP) and the question asks about nutrients, A is incorrect. Break down of macromolecules releases nutrients. Lysosomes break ...
*September 15, 2011*

**statistics**

a sample of 120 men and women randomly divided into 3 groups with 40 people per group. group 1 members varied their workouts. group 2 performed the same exercise at each workout. group 3 had no set schedule or regulations for their workouts. by the end of the study 18 people ...
*September 10, 2011*

**hemistry**

does glucose sometimes act as a monomer? explain your answer
*September 2, 2011*

**basic dressmaking processes**

1. A Correct 2. D Correct 3. B Correct 4. C Correct 5. A Correct 6. D Correct 7. C Correct 8. B Correct 9. C Correct 10. D Correct 11. C Correct 12. C Correct 13. A Correct 14. B Correct 15. D Correct 16. C Correct 17. A Correct 18. A Correct 19. B Correct 20. B Correct
*August 30, 2011*

**earth**

Why is the Earth's atmosphere rich in oxygen and poor in carbon dioxide?
*August 18, 2011*

**physics**

a charged particle with a charge ratio of 5.7E8 C/kg travels on a circular path that is perpendicular to a magnetic field whose magnitude is 0,27T, How much time does it take for the particle to complete one revolution
*August 10, 2011*

**Health**

I am trying to understanding what is required " Identify one trend in global health and discuss how this trend may affect public health in your community." Am I right by thinking that this like how prevention of hiv by cdc can affect local communities. I am trying to...
*July 25, 2011*

**british literature**

what is the meter of sonnet 73 what is the rhyme scheme of sonnet 73
*July 18, 2011*

**british literature**

review the metrical feet box on page 35 in your study guis and the model of scanned poem in your textbook page 42. then ,scan the following sonnet 73. mark the syllables, separate the feet with shorts vertical lines, and indicate the rhythem scheme that time of year thou mayst...
*July 18, 2011*

**Healthcare Administration**

Metropolis currently has $1,150,000 in cash. How long would it take them to accumulate $2,000,000 in cash? Assume an interest rate of 5 percent.
*July 4, 2011*

**physics**

Factory Worker A is exposed to a sound of a constant intensity of 6.30 × 10–4 W m–2 at a distance of 1.00 m from a noisy machine. The frequency of the sound is 4.00 kHz. (a) What is the sound level in decibels (dB) of this sound? (b) By what factor would the ...
*June 12, 2011*

**Finance**

suppose a computer that costs $3000 new is only worth after 3 years .What is the average annual rate of depreciation?
*June 9, 2011*

**College Algebra**

Solve the following equation: 7m^2 = 12 - 17m If more than one solution, separate with commas
*May 26, 2011*

**criminal justice**

Prepare a 6–8 slide PowerPoint presentation that addresses the following questions: •What are some of the ways that organized crime impacts you and a community and/or city (of your choice) directly? (This element will account for 20% of your grade.) •What are ...
*May 18, 2011*

**Life orientation**

5 ways in which the human enviromental problem impacts on the community.
*May 13, 2011*

**physics**

If an equal force acts on the following objects, which will have the greatest acceleration: 1) a golf ball 2) a football 3) a soccer ball 4) a baseball
*May 12, 2011*

**math**

In a group of 28, 16 are boys 12 are girls. what fractional part of the group are boys?
*May 10, 2011*

**College Algebra **

great!!! thanks so much ...... you are a life saver!!!!! =)
*May 10, 2011*

**College Algebra **

sorry ...it is cubing binomials and the avove problem
*May 10, 2011*

**College Algebra **

SOLVE: (3x-5)^3 that's to the third power
*May 10, 2011*

**british literature**

this are the choices A. old english B. Elizabeth English C. Gothic English D. Middle English
*May 9, 2011*

**british literature**

inverted word order, unclearpronouns,and variable spellings are characteristics of what type of english?
*May 9, 2011*

**grammar and writing**

what is the adverb in this sentence: pete sometimes pretends he is a strong, silent cowboy.
*May 2, 2011*

**system of equations**

solve using any method and identify the system as consistent, inconsistent or dependent. 3x-4y=8 6x-2y=10 I want to use elimination. this is taking me forever!
*April 26, 2011*

**College Algebra**

solving using the elimination method and identify the system as consistent, inconsistent or dependent. 3x-4y=8 6x-2y=10
*April 26, 2011*

**College Algebra**

A coin jar contains nickels, dimes and quarters. There are 46 coins in all. There are 11 more nickels than quarters. The value of the dimes is $1.00 less than the value of the quarters. How many coins of each type are in the jar?
*April 26, 2011*

**psychology**

I am new to the subject so all I need are guidelines on how I can tackle the question.
*April 25, 2011*

**psychology**

its not like i want the whole assignment to be done for me while i am relaxed no,i just want to be helped to brainstorm on what i should mainly focus on wen i am answering the question.
*April 25, 2011*

**psychology**

Susan Sharp is a 35year old lady who has recently been diagnosed with diabetes.She is overweight and smokes.She is aware that she does not have a healthy lifestyle but finds it hard to resist fast foods and alcohol.She is a single parent of two young children.She claims that ...
*April 25, 2011*

**Finance**

How do I calculate a present value? 7,000 in 5 years at a quarterly discount rate of 6% I have looked at the material, but I am confused. Thank you
*April 22, 2011*

**Finance**

Present value, How do I calculate the present value of: 7,000.00 in 5 years at a quarterly discount rate of 6%? I have read over the material, but I don't get it. Thank you
*April 22, 2011*

**Finance**

Why is time such an important factor in financial matters? How does the frequency of interest compounding, regardless of the rate of interest or period of accumulation, affect the future value of any given amount? Explain your answer. How might you use the principles of the ...
*April 20, 2011*

**College Algebra**

Thank you ...thank you ...thank you! =)
*April 19, 2011*

**College Algebra**

If 24% of your monthly pay is withheld for federal income taxes and another 6% is withheld for Social Security, state income tax, and other miscellaneous items, leaving you with $989.50 a month in take-home pay, then the amount you earned before the deductions were removed ...
*April 19, 2011*

**College Algebra**

If 24% of your monthly pay is withheld for federal income taxes and another 6% is withheld for Social Security, state income tax, and other miscellaneous items, leaving you with $989.50 a month in take-home pay, then the amount you earned before the deductions were removed ...
*April 18, 2011*

**College Algebra**

Plz help with the above equation
*April 18, 2011*

**College Algebra**

G - 0.24 G - 0.06G =989.5 Sorry that is the equation
*April 18, 2011*

**College Algebra**

If 24% of your monthly pay is withheld for federal income taxes and another 6% is withheld for Social Security, state income tax, and other miscellaneous items, leaving you with $989.50 a month in take-home pay, then the amount you earned before the deductions were removed ...
*April 18, 2011*

**College Algebra **

If 24% of your monthly pay is withheld for federal income taxes and another 6% is withheld for Social Security, state income tax, and other miscellaneous items, leaving you with $989.50 a month in take-home pay, then the amount you earned before the deductions were removed ...
*April 18, 2011*

**College Algebra**

THANKS!!!!! =)
*April 18, 2011*

**College Algebra**

The length of a rectangle is 3 times the width . If the perimeter is to be at least 48 meters, what are the possible values for the width? (If the perimeter is at least 48 meters, then it is greater than or equal to 48 meters.) Enter the expression for the width as an ...
*April 18, 2011*

**math true/false**

True
*April 13, 2011*

**business**

i need an answer
*April 6, 2011*

**chemistry**

write the products of these combination reactions: K + O2 ---> Ca + S ---> F2 + Al --->
*April 5, 2011*

**math**

find the sum of 9.98 and $15.00
*April 5, 2011*

**math**

identify what is the 90 percent confidence interval for occupational prestige for respondents with only a bachelor's degree (N=750), given you have known their mean=52.74, standard deviation=12.67.
*April 4, 2011*

**Stats**

identify what is the 95 percent confidence interval for upper class respondents, give you have known their mean=15.34, standard deviation=3.48,and cases=38
*April 4, 2011*

**math**

F=Gm1m2/r^2, for G
*March 31, 2011*

**Pre-Algebra**

Find any numbers for which each rational expressionis undefined. 9y^5+y^3/9
*March 31, 2011*

**Math**

The following data show the number of Chinese citizens who immigrated to the U.S. Use the data to predict how many Chinese immigrated to the U.S. during the 1990s. Decade No. of Chinese Immigrants 1950s 10,000 1960s 35,000 1970s 124,000 1980s 389,00
*March 29, 2011*

**chemistry**

how much energy is given off when 2.00 mol of CH4 are burned?
*March 28, 2011*

**Human Relations**

Which of the following steps will elicit a meaningful feedback from a passive person? A. confront the person. B. engage in a small talk to fill the uncomfortable empty pauses during a discussion. C. Set time limits. D. Ask close-ended questions. I think the correct answer ...
*March 27, 2011*

**physics**

A 13.0 {\rm g} plastic ball is dropped from a height of 2.80 {\rm m} and is moving at 3.20 {\rm m/s} just before it hits the floor. How much mechanical energy was lost during the ball's fall? delta E mech = ____ J
*March 23, 2011*

**physics**

A racing dog is initially running at 20.0 m/s, but is slowing down. Question: How fast is the dog moving when its kinetic energy has been reduced by half? Question: By what fraction has its kinetic energy been reduced when its speed has been reduced by half?
*March 21, 2011*

**physics**

A constant horizontal pull of 8.25 N drags a box along a horizontal floor through a distance of 19.1 m. Q How much work does the pull do on the box? Ans: i got the answer as W = 158 J But i have problem with the second question? Question: Suppose that the same pull is exerted ...
*March 21, 2011*

**world history**

For the period from 1500-1830, compare North American racial ideologies and their effects on society with Latin American/Caribbean racial ideologies and their effects on society
*March 21, 2011*

**physics**

A racing dog is initially running at 20.0 , but is slowing down. Q1. How fast is the dog moving when its kinetic energy has been reduced by half? Q2. By what fraction has its kinetic energy been reduced when its speed has been reduced by half?
*March 18, 2011*

**Algebra II**

Help, Im stuck.... I cannot remember what to do. (x+6)(x-7)(x+4)>0 The solution set is....{x, } Thank you:)
*March 7, 2011*

**Algebre II**

Help, Im stuck.... I cannot remember what to do. (x+6)(x-7)(x+4)>0 The solution set is....{x, } Thank you:)
*March 7, 2011*

**algebra**

Yes!, Thank you. It is (-6v^2 + 2v +4) Thank you for reminding me of the - sign.
*March 5, 2011*

**algebra**

(-6^2 + 2v + 4) - (6v^2 + 4)= Is the solution: 12v^2 + 2v?
*March 5, 2011*

**chemistry**

what is a standard solution? and what is a function of an indicator in a titration?
*March 5, 2011*

**chemistry**

what is a standard solution?
*March 5, 2011*

**physics**

When the thigh is fractured, the patient's leg must be kept under traction. One method of doing so is a variation on the Russell traction apparatus. (See the figure.) Please place period in place of (dot) oi53(dot)tinypic(dot)com/2a0b7yx(dot)jpg If the physical therapist ...
*March 4, 2011*

**Algebra**

5 and p more
*March 2, 2011*

**Algebra II**

I should know where to start, but I have a brain freeze. Will someone get me started? a^2 + b^2 = f^2, solve for a thanks :)
*February 27, 2011*

**College Algebra**

m = 60(30) = 1800 m = 60(42) = 2520
*February 27, 2011*

**physic**

indentify at least two ereas of physic involved in the following: a) building a louder stereo system in your car b)bungee jumping c)judging how hot an slectric stove burner is by looking at it. d) cooling off on a hot day by diving into a swimming pool.
*February 20, 2011*

**physics**

Identify the area of physics that is most relevant to each of the following situations. a)A high school football game b)Food preparation for the prom c)Playing in the school band d)Lightning in a thunderstorm e)Wearing a pair of sunglasses outside in the sun
*February 18, 2011*

**Algebra B**

Yes, You explained it very well. Thanks for taking the time.
*February 16, 2011*

**Algebra B**

Oh, reverse FOIL! Thank you.
*February 16, 2011*

**Algebra B**

The left, Thanks
*February 16, 2011*

**Algebra B**

x^2 - 5/2x + 25/16 = -4 + 25/16 = (x-5/4)^2 = -64/16 + 25/16 = (x-5/4)^2 = -39/16 Would someone please explain how we arrived at (x - 5/4)^2 = -64/16 + 25/16 from x^2 - 5/2x + 25/16 = -4 + 25/16 Thanks in advance for your help.
*February 16, 2011*

**chemistry**

Consider a gas that has a molar mass of 100.21 g/mol. What mass of this gas would occupy a 150 mL container under a pressure of 1.00 atmosphere and a temperature of 25 degrees centegrade?
*February 13, 2011*

**chemistry**

Consider a gas that has a molar mass of 100.21 g/mol. What mass of this gas would occupy a 150 mL container under a pressure of 1.00 atmosphere and a temperature of 25 degrees centegrade?
*February 13, 2011*

**algebra B**

Using the formula, w = cr^-2, solve for r. An object weighs 100lbs. What value of C will result in r = 3963? I have another question similar, but if someone could guide me in this one, I can figure out the other one. Thanks,
*February 11, 2011*

**Math**

A bucket that weighs 3.2 pounds and a rope of negligible weight are used to draw water from a well that is 82 feet deep. The bucket is filled with 42 pounds of water and is pulled up at a rate of 2.3 feet per second, but water leaks out of a hole in the bucket at a rate of 0....
*February 6, 2011*

**Algebra B**

I am confused as to what the nth power is. Is it any number as an exponent that leaves the radicand the same? Could you please show me an example? thanks,
*February 5, 2011*

**Algebra B**

What is 1.11211211111221312211131122211113213211 What are the next digits. I saw a diagram but it was in french, so I did not understand the progression.
*February 1, 2011*

**Algebra B**

When a root is not a real number, what kind of number is it?
*February 1, 2011*

**Algebra B**

x-4/x+3 = x-1/x+2 Solve the equation for x. Thank you
*January 27, 2011*

**chemistry**

how many mL of watel should be added to yeild a soultion that has a concentration of .125 M when you start with a 250 mL soultion of 1 M AgNO3?
*January 26, 2011*

**business**

Thank you
*January 19, 2011*

Pages: <<Prev | 1 | 2 | 3 | **4** | 5 | 6 | 7 | 8 | Next>>