Saturday

August 1, 2015

August 1, 2015

Total # Posts: 227

**Algebra**

An asthma medicine is to be prepared from an elixir with a drug concentration of 5 mg/mL and a cherry flavored syrup that is to be added to hide the taste of the drug. How much of each must be used to prepare 100 mL of solution with a drug concentration of 2 mg/mL?
*September 16, 2013*

**Chemistry**

I have all that information, but I still don't understand how to do it. How would you find the constant. And what does the s^ -1 stand for?
*September 16, 2013*

**Algebra**

An asthma medicine is to be prepared from an elixir with a drug concentration of 5 mg/mL and a cherry flavored syrup that is to be added to hide the taste of the drug. How much of each must be used to prepare 100 mL of solution with a drug concentration of 2 mg/mL?
*September 16, 2013*

**Algebra**

Before the final exam, a student has test scores of 72, 80, 65, 78, and 60. If the final exam counts as one-third of the final grade, what score must the student recieve in order to have a final average of 76 percent? Thanks!!
*September 14, 2013*

**Essay title**

That's perfect!!! Thank you so much!!
*September 9, 2013*

**Essay title**

I really like the second one, but do you have any ideas to get rid of the first person?
*September 9, 2013*

**Essay title**

Hi. I'm trying to think of an essay title for an "I believe" essay. The essay is supposed to talk about how I defy the 'single story'. I talked about defying the single story of a teenage girl because I play the drums. My "I believe" statement ...
*September 9, 2013*

**AP Euro**

In The Revival of Antiquity by Jacob Burckhardt, Burckhardt talks about the humanists "It's active representatives became influential because they knew what the ancients knew." Please explain this quote and what Burckhardt meant.
*September 5, 2013*

**Algebra**

Can you please show step-by-step how to do this problem? (4x^2 - x +5)/ (x^2/3)
*September 3, 2013*

**Math**

(4x^2 - x +5)/ (x^2/3) Can you please show step-by-step how to do this problem?
*September 3, 2013*

**AP Euro**

Can you please explain this quote said by Pope Boniface VIII in the Unam Sanctum and who he was referring to? Was the Pope referring to Philip the Fair when he said this? "Therefore, of the one and only Church there is one body and one head, not two heads like a monster...
*September 2, 2013*

**Spanish**

How would you say iPod in Spanish? Would you simply say iPod or would it be better to use electronic device?
*September 1, 2013*

**MATH**

So for this you would use the Pythagorean Theorm. The formula is a^2 + b^2 = c^2, where c is the hypotenuse of the triangle. So if you know that the ladder reaches the height of 12m, that would be the hypotenuse in the triangle. 5m would be one of the legs in the triangle. ...
*September 1, 2013*

**Math**

Oh. I understand. That makes a lot of sense. Thanks!!
*August 31, 2013*

**Math**

What is the factorization of... p^3 - 2p^2 -9p + 18?
*August 31, 2013*

**Chemistry**

Why does a pound of feathers float, but a pound of lead sink? Is it because of how dense each group is?
*August 29, 2013*

**Algebra**

That's alright then. Thank you very much.
*August 26, 2013*

**Algebra**

Well for the first one, the answer s supposed to be 1ã6xy/2y^2. The second problem's answer is xy/3 times the cubed root of 6y
*August 26, 2013*

**Algebra**

No. These two are both separate problems. The book asks to simplify each problem. And for the 2nd problem the index is a four.
*August 26, 2013*

**Algebra**

The squiggly A was originally a radical sign, but I guess it got changed.
*August 26, 2013*

**Algebra**

Hi. I need help on a couple of algebra problems. Can you please explain step by step how to do these? Thanks. ã(3x (whole thing has radical sign) ---- 2y^3 ^3(ã2x^4y^4) ------------ (the whole thing is cubed 9x
*August 26, 2013*

**Grammar**

Which sentence is grammatically correct? Most of the European population was peasants. or Most of the European population were peasants. Thanks!!!
*August 21, 2013*

**History**

Oh, ok. Thanks!
*August 16, 2013*

**History**

"He simply argued that the peddling of pardons like Colosseum souvenirs trivialized sin by debasing the contrition." Does this mean that by the Pope allowing indulgences society cares less about doing wrong?
*August 16, 2013*

**European History**

Ok. Thank you both!
*August 13, 2013*

**European History**

Can you please explain this quote? "The monarchy of Rome, as it is now, is a pestilence to Christendom." -Erasmus
*August 13, 2013*

**European History**

Oh. Ok. Sorry, I didn't check my previous question. Thank you!
*August 13, 2013*

**European History**

Where was this quote said, what impact did it have on society, and what changes were taking place when this quote was said. “I have the feeling that the days of Cicero and Demosthenes are much closer to me than the sixty years just passed.” -Leonardo Bruni
*August 13, 2013*

**European History**

Where was this quote said, what impact did it have on society, and what changes were taking place when this quote was said. “I have the feeling that the days of Cicero and Demosthenes are much closer to me than the sixty years just passed.” -Leonardo Bruni
*August 13, 2013*

**Business Statistics**

Describe the district ution of the x-bars that you see in part b (shape of distribution, center, and the amount of depersion).
*June 30, 2013*

**English**

I think you are right. The answer is metallic
*May 30, 2013*

**math**

So you would have to use sin, cosine, tangent. The formula would be 30 sin(x) = -------- 235
*May 29, 2013*

**Cross-Multiply**

9. Explain the process of cross-multiplication.
*May 13, 2013*

**math**

Bob has three sacks of apples and three more apples in his pocket. Each sack contains the same number of apples. Altogether, Bob has 33 apples. How many apples are in each sack? what is the domain and range
*May 4, 2013*

**math**

If you make everything have the same denominator, then Joel would have walked 8/20 of a mile to the store, 6/20 of a mile to the library, and 1/20 of a mile to the post office. When you add them up, Joel walked 15/20 of a mile or 3/4
*April 30, 2013*

**English**

This is my sentence... When a single subject is being connected to a plural subject using “or” then the verb is plural. Would you put a comma inside the quotes of the word "or" or outside? Thanks!
*April 30, 2013*

**Science**

thanks
*April 5, 2013*

**Science**

What do the hairlike structures on a cell do? Please don't give me a link to another website. Thank you!
*April 5, 2013*

**Physics**

What does the M in Mu stand for in the equation? Momentum?
*December 23, 2012*

**Geometry**

Find the measure of the angle formed by the hands of a clock at 9:43. Thanks!
*September 4, 2012*

**English**

sometimes scientist make a mistake, or _, and need to do an experiment again.
*August 27, 2012*

**Chemistry**

Assume that the ionic compound CaCl2, seperates completely into Ca and Cl ions when it dissolves in water. How many moles of each ion are present in the solution???
*August 9, 2012*

**MathLog#4**

How would you solve for 'a'? (1/a) - (1/b) = c would you use the LCD???
*April 2, 2012*

**Chemistry**

Did anyone end up getting this. if you plug in the numbers above you still need the retain rate to find k. How do you do that??!!
*February 23, 2012*

**MATH**

X=3 y=3
*February 12, 2012*

**math**

In the megalopolis stadium there were 32 sections, and each section could seat 950 people. How many people could the stadium seat?
*February 1, 2012*

**Accounting**

Can someone tell me the formula of how to calculate depreciation?
*December 12, 2011*

**science**

how is the mouth of a perch and earthworm specialized.. PLEASE HELP!
*October 16, 2011*

**physics, math, science**

a soccer ball is kicked on the ground at 8m/s. another player is standing 30 m away. if she needs to intercept it at 20m - how much time does she have and how fast must she run?
*October 1, 2011*

**physics**

an object slides off a roof 10 m above the ground with an initial horizontal speed of 5 m per second. the time between the object's leaving the roof and hitting the ground is 1.4s. how far does it land from the wall?
*October 1, 2011*

**fluid mechanics**

A plastic bag is filled with 1 ft3 of air at 17° C at atmospheric pressure. What is volume at 2 atm pressure?
*September 4, 2011*

**fluid mechanics**

What is the pressure change require to change the volume of air by 1%?
*September 4, 2011*

**Psychology**

Pyschologists train rats to fight and scratch each other by shocking them if they are somber. How is that negative reinforcement?
*January 8, 2011*

**Math**

-3x+4y-1=0 +1 +1 -3x+4y=1 -28 -28 -3x=-27 --- --- -3x -3x x=9
*December 13, 2010*

**Science**

what creates the circulation of air or water that forms from uneven heating?
*December 13, 2010*

**math**

A square garden Circular Garden Area= pi r squared=314 meters Square Garden=Length*Width=400 meters
*December 13, 2010*

**science**

-273.15 Degrees Celcius 0 degrees Kelvin
*December 13, 2010*

**physics**

We confirm the concept of the geothermal effect in an alternative fashion to the discussion in the text. We know that the average rate at which heat is conducted through the surface of the ground in North America is 54.0 mJ/(s m2). Assuming a surface temperature of -2 oC, what...
*November 23, 2010*

**physics**

We consider hemoglobin along a 0.29 m long tube filled with water. The cross-sectional area of the tube is 326 mm2. The diffusion coefficient is 7 x 10^-11 m^2/s A total amount of hemoglobin of 1.22 x 10-12 g is transported in a steady rate along the tube in 24 seconds. What ...
*November 23, 2010*

**algebra**

what is the answer to x-5w=
*November 23, 2010*

**chemistry**

and i go to brock
*November 23, 2010*

**chemistry**

my lab is actually not until next week
*November 23, 2010*

**chemistry**

neutralization is -55.84kJ/mol
*November 23, 2010*

**chemistry**

when 12.76mL of HCl of unknown concentration (but less than the base) are reacted with 15mL of 3.254M NaOH, 1.68kJ of heat are released. What is the molarity of the HCl solution?
*November 23, 2010*

**chemistry**

the molar heat of neutralization is -55.84kJ/mol
*November 23, 2010*

**chemistry**

13.98mL of 2.902M HCl are reacted with 15mL of 3.198M NaOH. Use the molar heat of neutralization to determine the kJ of heat produced.
*November 23, 2010*

**physics**

If 842 J of heat is needed to increase the temperature of ethane gas (C2H6) in a 15 litre container from 237 K to 400 K, how much gas is in the container
*November 18, 2010*

**physics**

1.7 mol of an ideal gas which starts at 1.6 atm and 50 o C does 2.0 kJ of work during an adiabatic expansion. What is the final volume of the gas?
*November 18, 2010*

**physics**

Find the work for an isothermal expansion of 3.08 mol of an ideal gas at temperature of 18oC from pi = 4.55 atm to pf = 3.32 atm.
*November 18, 2010*

**physics**

A container of volume 14.2 cm3 is initially filled with air. The container is then evacuated at 0oC to a pressure of 32 mPa. How many molecules are in the container after evacuation if we assume that air is an ideal gas?
*November 18, 2010*

**physics**

"Calculate the internal energy for the air in human lungs after a regular inhalation. You find this volume discussed in the context of the spirometer (textbook p. 203). Hint: treat air as an ideal gas with the molecular mass M = 29.00 g/mol " Not sure the process to ...
*November 18, 2010*

**chemistry**

what is the hybridization of BrO2+
*November 18, 2010*

**Biology**

4.0 g of ferrous ammmonium sulphate, FeSO4(NH4)2SO4 6H2O, is used. Since the oxalate is in excess, calculate the theoretical yield of the iron complex. Please help with this question. Thank you.
*November 16, 2010*

**English**

Hi Iam doing an article on why I think humans should not eat meat from the perspective of a parent with a child. I need three solid arguments for this; please help.
*November 15, 2010*

**Media**

Hi, I am doing an paper on editors and their roles in broadcast. I wanted to get some ideas about how editors choose their lead story and why they are led to choose that story. Any ideas? thanks
*November 8, 2010*

**math**

input ouput 2 8 7 3 5 5 0 0
*October 14, 2010*

**Math**

Convert from base 10 to the indicated base. 2500 to base 14 I got CA8 to the base of 14. Is that correct?
*September 22, 2010*

**math**

a pari of shoes is on sale for 10% off the original price. If the sale price is $14.40, what was the original price of the item?
*August 9, 2010*

**7th grade**

rosa wants to buy a computer desk that originally cost $650. It has been marked down to a new price of $520. What is the percent off?
*August 9, 2010*

**science**

a 1200W machine operates at 120V. what is the resistance of the machine?
*May 27, 2010*

**stock market**

If i invested 10,000 on 50 stocks that were 210.93 each, then the price of each went up to 217.00 each. How much did I earn?
*May 12, 2010*

**plants**

there are mechanisms that prevent pollination of one plant species by pollen from another. this would prevent a) the formation of hybrids between the pollen donor and the pollen receptor b) a waste of pollen c) pollen from attempting to develop on the stigma of an incorrect ...
*April 24, 2010*

**science**

what is the thing a candle holds?
*April 9, 2010*

**chemistry**

3.78kg Cu x (1000g/1kg) x (1 mol/63.546g) = 59.5 mol Cu 59.5 mol Cu x (13.05kJ/1mol) = 776 kJ evolved
*February 15, 2010*

**English**

Why does Gene not have an interest in Brinker in the book A Seperate Peace?
*February 5, 2010*

**CMC220**

I was asking for someone to do the homework. Only asking for some good resources to assist with additional references for the assignment. I have about 600 words out of 750-1050 complete.The text book does not provide enough to complete the assignment without be repetitive. ...
*November 8, 2009*

**CMC220**

how each new medium affected news content and delivery, including how people engaged with news and how the media that preceded it adapted their content and delivery. Be sure to discuss newspapers, magazines, radio, TV, and satellite and Internet services.
*November 8, 2009*

**acc250**

Has anyone done the Sahron Clark, accouting in Peachtree? Just wondering how to enter the supplies on hand, to the adjusted trial balance. confused about this.
*September 23, 2009*

**algebra**

8x^3+27=0 8x^3=-27 x^3=-(27/8) x=-3/2 proof 8(-3/2)^3=27=0 8(-27/8)+27=0 -27+27=0 0=0
*September 19, 2009*

**biology**

How did the primordial atmosphere, photosynthesis, oxygen, the ozone layer, and the endosymbiotic theory influence the origin of living organisms?
*September 2, 2009*

**Mathematics**

A map drawn to scale of 1:50 000 with the actual distance between two points is 4.5km.Calculate the number of centimetres that should be used to represent this distance on the map.
*June 15, 2009*

**5th grade Math**

One tap can fill a barrel in 3 minutes and another can fill it in 6 minutes. Both taps are turned on together for 1 minute. What fravction of the barrel will be filled in 1 minute?
*April 26, 2009*

**social studies**

I come at the beginning of time, I come at the end of time, I come twice a week and once per year. What am I?
*April 17, 2009*

**english**

I need a 75-150 word response detailing what you have learned so far in the course.
*December 13, 2008*

**Math**

f(x) = 2x+4 and g(x)= x2-1 find (f * g)(4) find (g * f)(x) find f^(-1)(x)
*November 23, 2008*

**MATH PLEASE HELP!**

that right there is the question
*November 23, 2008*

**5th grade Math**

WAIT WHAT!!
*October 2, 2008*

**5th grade Math**

Insert parentheses to make this sentence true. 3*8+6 squared -8/2=26. My teacher told me I think that the parentheses go around the 3 and last 8. Is that true. How did you do that?
*October 2, 2008*

**math**

What does this have to do with preschool and what is your question?
*September 27, 2008*

**HR**

Thanks. Do you have any specific examples of areas in the world that have this challenge?
*September 17, 2008*