Thursday

September 18, 2014

September 18, 2014

Total # Posts: 61

**alg**

Solve for u: u − 2/ u − 4 + 6 = u + u − 6/ 4 − u
*April 4, 2014*

**algebra**

Simplify (2/3k)+(k/k+1) divided by (k/k+1) -(3/k)
*April 4, 2014*

**algebra**

Solve for u: u − 2 u − 4 + 6 = u + u − 6 4 − u
*April 4, 2014*

**math**

what is the equal groups of 20
*January 31, 2014*

**physics**

A microwave draws 5.0 A when it is connected to a 120 V outlet. If electrical energy costs $0.090 per kW·h, what is the cost of running the microwave for exactly 6 h?
*November 20, 2013*

**elgebra **

2/3a +5/a
*May 16, 2013*

**statistics**

Undergraduates in a large university class were asked to record the time they spent on the most recent homework. In a histogram of the recorded times, the height of the bar over the interval “1 hour to 3 hours” is 4% per hour. The height of the bar over the interval...
*March 28, 2013*

**math**

Lake superiorhas a depth of 1.333 thousand feet.there are 5,280 feet in one mile. How deep is Lake Superior?
*November 5, 2012*

**math**

Whats the lcm of 32 40 and 49
*November 3, 2012*

**Math**

At the local animal shelter, there are 30 cats and 36 dogs. What is the ratio of dogs to cats at the local animal shelter
*October 27, 2012*

**math**

The length of a rectangle is 2 inches more than its width. The area of the rectangle is 15 square inches. What are the length and width of the rectangle?
*September 12, 2012*

**simplest form**

what is 1/2+5/6 in simplest form
*September 12, 2012*

**math**

Kate is at a T-shirt sale where she can buy one and get a second one for 30% off. She wants to buy two T-shirts listed at $19 each. How much will she pay?
*April 16, 2012*

**Life Orientation**

balance
*March 15, 2012*

**science**

Observe one hour in a classroom (preschool, pre-kindergarten, kindergarten
*November 2, 2011*

**chemistry**

Free Energy and Temperature A certain reaction is non-spontaneous at lower temperatures but becomes spontaneous when the temperature is raised sufficiently. For this reaction, S is positive. S is negative. H is negative. G becomes positive at higher temperatures. G is always ...
*October 18, 2011*

**chemistry**

1.) For which of the following substances is the standard enthalpy of formation equal to zero? a) water [H2O(l)] d) carbon dioxide [CO2(g)] b) lead [Pb(l)] e) tin [Sn(s)] c) carbon dioxide [CO2(s)] 2.) Consider the following four equations: 1. C6H6(l) + O2(g) 6CO2(g) + 3H2O(l...
*August 3, 2011*

**chemistry**

1.If its molar solubility is designated by “x”, then which of the following expressions best represents the solubility product for the substance Ag2SO4? a) x2 b) 27x4 c) 4x3 d) 108x5 e) 3x4 2. Consider the equilibrium, 4HCl(g) + O2(g) 2H2O(g) + 2Cl2(g). The ...
*August 3, 2011*

**chemistry**

1. A solution of sodium oxalate has a pH of 7.82. The [OH-] in mol/L must be which of the following: a) 6.18 b) 1.5 x 10-8 c) 6.6 x 10-7 d) 7.82 e) -7.82 2. When 0.93 mol of O2 and 0.56 mol of NH3 are mixed together and allowed to come to equilibrium according to the equation...
*August 3, 2011*

**chemistry**

For the equilibrium system below, which of the following would result in an increase in the concentration of CO(g)? 2H2(g) + CO(g) CH3OH(g) + 92 kJ a) decreasing temperature b) adding some CH3OH c) both b and d d) decreasing the volume of the container e) both a and b
*August 3, 2011*

**english**

examples ways to apply things like punctuation, my grammar overall and apply it in the professional writing.
*June 13, 2011*

**english**

write a paragraph explaining how you can apply writing elements such as evaluation, summary, synthesis, analysis to enhance your academic and professional writing.
*June 13, 2011*

**3rd grade math**

the equal groups of 20
*March 14, 2011*

**Chemistry**

OK I just need help with two final problems that I am stuck on: The problem states the calcium carbonate in limestone reacts with HCl to produce a calcium chloride solution and carbon dioxide gas CaCO3(s)+2HCl(aq)-->CaCl2(aq)+H2O(l)+CO2(g) 1)Find how many moles of CO2 form ...
*December 9, 2010*

**Chemistry**

I just figured out the first one shortly after I answered the second question thank you
*December 9, 2010*

**Chemistry**

I think the answer for #2 may be 0.221 M? Is this correct?
*December 9, 2010*

**Chemistry**

I am having trouble getting this starting and figuring out the correct steps...the problem is Calculate the final concentration of the solution in each question 1) Water is added to 0.270 L of a 6.00M HCl solution to give a volume of 3.00 L (Express answers with the appropiate...
*December 9, 2010*

**Chemistry**

Your right i figured it out it was due to the sig figs
*December 9, 2010*

**Chemistry**

Calculate the molarity of the following solutions: 5.0g of KOH in 4.0L of KOH solution I went from grams of KOH to moles of KOH to molarity but still got the wrong answer... 5.0g KOH X 1 mol KOH/56.108g KOH = 5.0 mol KOH/56.108=0.0891 mol KOH/4.0L and got the answer of 0.02 M ...
*December 9, 2010*

**Physics**

when they fall the ball
*December 9, 2010*

**Chemistry**

Thank you i minused 18.0 from both sides to get 182g of water
*December 9, 2010*

**Chemistry**

I need help with this problem please Calculate the amount of reagents you take to prepare 200 g of 9.0% (m/m) glucose solution? I already found the mass of the glucose which was part one and got 18.0 g of glucose. Now they want the mass of water and I am stuck.
*December 9, 2010*

**Chemistry**

Thank you I just figured it out
*October 17, 2010*

**Chemistry**

What is the largest atom in period 2 of the periodic table?
*October 17, 2010*

**Chemistry**

Thank you so much I finally got it!!
*September 19, 2010*

**Chemistry**

If aluminum has a density of 2.7g/cm^3,what is the mass,in grams of the foil? It states that a package of aluminum foil is 54.3 yd long, 14 inches wide, and 0.00035 inches thick.
*September 19, 2010*

**Chemistry**

Ok so it would be 69.7221 lb or 70lb since it only wants two sig figs
*September 19, 2010*

**Chemistry**

If a person has a mass of 62 kg, how many pounds of water does she have in her body? And it gives the typical adult body containing 51% water
*September 19, 2010*

**Chemistry**

Yes sorry again I hit the button too quick...it states a package of aluminum foil is 54.3 yd long, 14 inches wide,and 0.00035 inches thick.
*September 19, 2010*

**Chemistry**

If aluminum has a density of 2.7g/cm3,what is the mass,in grams of the foil?
*September 19, 2010*

**Chemistry**

Yes, I'm sorry I left out the fact that it stated a typical adult body contains 51% water.
*September 19, 2010*

**Chemistry**

If a person has a mass of 62 kg, how many pounds of water does she have in her body?
*September 19, 2010*

**physics**

A particle of mass 86 g and charge 24 μC is released from rest when it is 67 cm from a second particle of charge −12 μC. Determine the magnitude of the initial ac- celeration of the 86 g particle.
*July 8, 2010*

**chem**

What is the wavelength of a 1400 kg truck traveling at a rate of 72 km/h?
*April 29, 2010*

**Math - Trig**

Given that a measures 25.1 mm, x measures 51.2 mm and angle b measures 82°, find the length of y -
*March 26, 2010*

**chemistry**

Ethane, C2H6, has a molar heat of vaporization of 15 kJ/mole. How many kilojoules or energy are required to vaporize 5 g of ethane?
*December 1, 2009*

**spanish**

Subjunctive, infinitive, or indicative??? can anyone please correct me??? I try to practice it before my test but I'm really confused about it, and also please explain why I did it wrong??? muchas gracias!!!! Put ir in the nosotros subjunctive form vayamos Put haber in the...
*May 7, 2009*

**spanish**

please check my grammar, and please tell me which one I can change to imperfect, because I try to write some sentences in preterit, and some in imperfect, thank you!!! AprendÃ espaÃ±ol porque quise mejorar mi espaÃ±ol. VisitÃ©...
*April 12, 2009*

**algebra1**

6x sq.-24
*March 11, 2009*

**government**

What factors enabled congress to dominate the American government in the nineteenth century? Was the problem a series of weak president?
*November 22, 2008*

**12th Calculus**

a 13-ft ladder is leaning against a wall. suppose that the base of the ladder sides away from the wall at the constant rate of 3ft/sec 1. explain why the motion of the two ends of the ladder can be represented by the parametric equations: x1(t)=3t, y2(t)=0 x2(t)=0, y2(t)= ...
*November 20, 2008*

**physiology**

During myasthenia gravis, the body attacks the Ach receptors so they do not work; this could cause?
*November 20, 2008*

**calculus adn geometry**

how close does the semicircle y=radical(16-x^2) come to the point (1,radical3)?
*November 18, 2008*

**government**

How would you resolve the following conflicts between rights of the individuals and why? [g] Mexican-American students at Orange Coat College insist that tacos be served once a week in the Captain’s Table. [h] Fountain Valley High School has 80% minorities, but no ...
*November 10, 2008*

**math riddle ALGEBRA WITH PIZZAZZ**

do any body no da ansa
*April 6, 2008*

**AED200**

give an example of a situation were the students right might override the teachers responsibilities?
*February 20, 2008*

**us history**

In what ways did wilson support progressivism? In what ways did president Taft support the progressive agenda? Brefly describe theodore roosevelts progressive record what were some of the reform ideas at the turn of the century?
*January 27, 2008*

**us history**

what factors finally turn the tide for womens suffrage? On what grounds did people resist womens suffrage? what is the significance of the phrase"the perfect thirty-sixth"?
*January 27, 2008*

**sociology**

hang in there don't give up
*July 20, 2006*

**eth/125**

help
*July 20, 2006*

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