Tuesday

July 28, 2015

July 28, 2015

Total # Posts: 455

**Chemistry**

The equilibrium constant, Kc is 3.2 x10 -34 at 25C for the reaction 2 HCl(g) <=> H2(g) + Cl2(g). what is The equilibrium expression, Kc for the reaction
*April 27, 2011*

**Accounting**

What is the equation for a simple interest rate of 47,000 note at 12 percent in 3 years? Please help resolve.
*April 25, 2011*

**stats**

how to work this math problemAn archaeologist has 250 animal bone fragments from prehistoric site -of these 195 are white-tail deer bones. Construct the 90% confidence interval for the percentage of bone fragments from this site that are from white-tail deer
*April 17, 2011*

**bio-chem**

C- and K+ channels are open
*April 8, 2011*

**physics**

n object is dropped from rest from a height 5.8 × 106 m above the surface of the earth. If there is no air resistance, what is its speed when it strikes the earth? The acceleration of gravity is 9.81 m/s2 and the radius of the Earth is 6.37 × 106 m. Answer in units...
*April 5, 2011*

**Math**

How many 9" squares are there in a 8' x 10' area?
*March 28, 2011*

**english**

what is an outcast story
*March 22, 2011*

**HCS/341**

Who coined,"Common sense and compassion in the workplace has been replaced by litigation?" Thank you
*March 21, 2011*

**use equation to complete the function table**

Complete the table write equation to show relationship Input x. 0,1,2,3,4,5 Output y 4,10,16,22,?,?
*March 15, 2011*

**Economics**

Indicate at which point flat-of-the-curve medicine is experienced in the following example (imagine that antibiotics have been prescribed for a given population of 1,000 elderly persons).
*March 14, 2011*

**Social Studies**

1.a 2.b 3.a
*March 13, 2011*

**Math**

How do I solve this 120-42÷ (10*4-4*6) Can you explain
*March 8, 2011*

**College Algebra**

120-42÷ (10*4-4*6)
*March 7, 2011*

**Math grade 3**

Identify the attributes of the shapes. Which attributes change according to a pattern?
*February 23, 2011*

**Math**

multiplying by 1 to find an expression equivilent to 12over19 with a denominator of 133d
*February 22, 2011*

**chemistry**

how many moles of gas are contained in a 50.0L cylinder at a pressure of 100.0 atm and a pressure of 35 C?
*February 21, 2011*

**Alegbra**

Thank you
*February 18, 2011*

**Alegbra**

Can this be solved? x+y=160 x=4y+9
*February 18, 2011*

**Alegbra**

Thank you
*February 17, 2011*

**Alegbra**

Why do i never get any help
*February 17, 2011*

**Alegbra**

I have a problem that I need help with can someone show me the steps LiveStock Feed- Soybean meal is 16% protein and corn meal is 9% protein. How many pounds of each shoul be mixed to get a 350-lb mixture that is 12% protein?
*February 17, 2011*

**world histiry**

what is the order of the pyramid of the japanes fuedal system
*February 16, 2011*

**Alegbra**

How would you solve this using substitution method y= 3 + x 2x + y = 8
*February 16, 2011*

**algebra**

I need to know if I am doing this problem right when sustitution method. y+2x=3 y+2x=-4 y+2x=3 -1(y+2x=3)-y-2x=-4 now add the two equation y-2x=3 -y-2x-4 the answer would be -4y=7 then divided -4=7 answer 1.75 I no that there is more to this answer I am just stuck and not sure...
*February 15, 2011*

**algebra**

I need to know if I am doing this problem right when sustitution method. y+2x=3 y+2x=-4 y+2x=3 -1(y+2x=3)-y-2x=-4 now add the two equation y-2x=3 -y-2x-4 the answer would be -4y=7 then divided -4=7 answer 1.75 I no that there is more to this answer I am just stuck and not sure...
*February 15, 2011*

**Alegbra**

Ok so let me start over. System of equation can be solved by graphing, substitution or elmination method. I only have to choose one method and I was trying the elimination method is that how my problem seems to be?
*February 14, 2011*

**Alegbra**

System of equation. substitution or elmination method??
*February 14, 2011*

**Alegbra**

I would like to know if I did these problem right? y + 2x =3 Y +2x=-4 Y+2*x-3=0 y=2*x+4=0 If not can you show me the steps
*February 14, 2011*

**science**

A machine has a mechanical advantage of 2. This means its output force is _____. a. 0.5 times greater than the input force b. 2 times smaller than the input force c. 2 times greater than the input force d. 2 times more efficient than the input force
*February 13, 2011*

**Algebra**

Can someone help me with this one and how to find the equation? Suppose you are paying your cell phone bill. The function C(m) represents the cost C of your monthly cell phone bill with m minutes. Given the equation: What does the number 0.25 represent?
*February 10, 2011*

**Algebra**

Suppose you are paying your cell phone bill. The function C(m) represents the cost C of your monthly cell phone bill with m minutes. Given the equation: What does the number 0.25 represent?
*February 10, 2011*

**Algebra**

This is my first asking I did not do this before?
*February 8, 2011*

**Algebra**

I need toIs the following pair of lines parallel or perpendicular? Prove your answer. 2y – x = 2 y + 2x = 4 can you explain how to break this down ...
*February 8, 2011*

**Algebra**

Thank you I did not see the answer. Thank you so much
*February 8, 2011*

**Algebra**

I need toIs the following pair of lines parallel or perpendicular? Prove your answer. 2y – x = 2 y + 2x = 4 can you explain how to break this down ...
*February 8, 2011*

**arithmetic**

I am 5'2 and cast a shadow 3' long. My friend casts a shadow 3' 5" long. How tall is he?
*February 4, 2011*

**health**

Why would the task of Universal health care coverage raise health care costs?
*January 31, 2011*

**Algebra**

how do I check my answer to a problem. The problem is: x/5 - 1/2 = 3 I know the answer is 35/2 but how do you check it. 35/2 /5 - 1/2 = 3?
*January 29, 2011*

**chemistry**

How would you caculate this problem: What is the mass in grams of 150*10^12 iron atoms, each having a mass of 56 amu?
*January 26, 2011*

**algebra**

y >=-1
*January 7, 2011*

**algebra**

the xx is in the answer box, so it is x x then the answer
*January 7, 2011*

**algebra**

0.8x+1<=1.2x-8 x x
*January 7, 2011*

**algebra**

9x-7y=-49
*January 7, 2011*

**Algebra**

p(x)=x^2-2x+10
*January 7, 2011*

**Algebra**

y varies directly as x, and y=20 when x=5
*January 4, 2011*

**Health Care**

I need help with a team powerpoint on Health Care Costs and need to do 3-4 slides with speaker notes on Recommendations for Improvement
*December 16, 2010*

**math**

A foyer is 8 feet by 8 feet the tiles are 4 square feet how many tiles will fill the space
*December 1, 2010*

**Chemistry**

Cooking oil has a boiling pt of 200 degress, water is 100 degrees. explain theses facts given the strength of waters hydrogen bonds
*November 30, 2010*

**patients records**

what is an accreditation agency and name an area of records management that is affected by its guidelines.
*November 23, 2010*

**Chemistry**

AgCl--->Ag^(+)+Cl^(-) AgNO3= 2E^-4L*0.15mol/L AgNO3/(.01L)=mol/L AgNO3=mol/L Ag^(+)=.003M Find Ksp(AgCl) in solubility constant table Ksp(AgCl)=1.77E-10 1.77E-10=[.oo3M Ag(+)][Cl^(-)] solve for Cl^(-) Cl^(-)=5.9E-8M 5.9E-8mol/L*.01L in tank * mm 35.453 g/mol=2*10^-8 g
*November 20, 2010*

**College Algebra**

This is my problem I need help with. (7,-8); 3x+5y=6
*November 17, 2010*

**Chemistry**

What is [OH-] of a solution containing 013 mol Ba(OH)2 and .021 mol KOH in .50L of H2O?
*November 13, 2010*

**Intermediate Algebra**

if a system has an infinite number of solutions, use set-builder notation to write the solution set. If a system has no solution, state this. m - 2n = 16, 4m + n = 1
*November 11, 2010*

**Intermediate Algebra**

If a system has an infinite number of solutions, use set−builder notation to write the solution set. If a system has no solution, state this. y = x + 2, 3y − 2x = 4
*November 11, 2010*

**chemistry**

3 Fe + 4H2O= Fe3O4 + 4H2
*November 4, 2010*

**chemistry**

At 900 degrees C, Kc for the reaction is 5.1. if .050 mole of H20 and .100 mole of Fe are placed in a 1L container at 900 degrees C, how many grams of Fe3O4 are present at equilibrium?
*November 4, 2010*

**MATHS**

Complete the pattern. 1,1,4,25,--------,749956 Thanks for your help
*October 27, 2010*

**math**

George saves 18% of his total gross weekly earnings from his 2 part-time jobs. He earns $6.25 per hour from one part-time job and $7.50 per hour from the other part-time job. George works a total of 40 hours between the two jobs each week. What additional information is needed...
*October 22, 2010*

**Math**

complete the pattern: 1, 64, 2 ,32, 4, 16, ___ , ____.
*October 18, 2010*

**Statistics**

What are the most prudent decisions Avionics, Inc.can make about it's responsibilities to itself and others?
*October 17, 2010*

**6th grade english/pronouns**

This might help: Personal pronouns, Possessive determiners, Possessive pronouns Personal pronouns Possessive determiners Possessive pronouns as subject(nominative)as object (accusative and dative) I me my mine you you your yours he him his his she her her hers it it its its we...
*October 17, 2010*

**algerbra**

the length of a rectangular jewlery box is 6 inches more than twice the width. the perimeter is 54 inches find length and width.
*October 12, 2010*

**math 115**

b) The representative tells you that floor plan #1 sells for $300,000 and floor plan #2 sells for $200,000. She also mentions that all the available houses combined are worth $3,300,000. Write an equation that illustrates this situation. Use the same variables you used in part...
*October 6, 2010*

**math 115**

I am stuck with this problem can some let me know how to work this problem please help me The representative tells you that floor plan #1 sells for $300,000 and floor plan #2 sells for $200,000. She also mentions that all the available houses combined are worth $3,300,000. ...
*October 6, 2010*

**math 115**

I am stuck with this problem can some let me know how to work this problem please help me The representative tells you that floor plan #1 sells for $300,000 and floor plan #2 sells for $200,000. She also mentions that all the available houses combined are worth $3,300,000. ...
*October 6, 2010*

**MATHS**

How many minutes before 12 noon is it, if one hour ago it was three times as many minutes after 8 am? Thank you
*October 6, 2010*

**Math 116**

Is this correct so far...I just want to know if I am doing this.. b) The representative tells you that floor plan #1 sells for $300,000 and floor plan #2 sells for $200,000. She also mentions that all the available houses combined are worth $3,300,000. Write an equation that ...
*October 6, 2010*

**Alegbra 115**

Is this correct so far...I just want to know if I am doing this.. b) The representative tells you that floor plan #1 sells for $300,000 and floor plan #2 sells for $200,000. She also mentions that all the available houses combined are worth $3,300,000. Write an equation that ...
*October 6, 2010*

**math 115**

dID IU do this right not sure and I thank you for helping ahead of time... 1. Suppose you are in the market for a new home and are interested in a new housing community under construction in a different city. a) The sales representative informs you that there are two floor ...
*October 6, 2010*

**college biostatistics**

if the mean bp is 110 and the standard deviation is 15 where would 95% of population be
*October 3, 2010*

**Finance**

"An investor is proposing to buy shares in XYZ company. XYZ company is expected to an annual dividend of $2.50 per share. The current share price is $50.00. If the investor requires an annual rate of return of10%, what must the share price be in 1 yr?.
*September 28, 2010*

**math**

how is it possible for a triangle to have angles of 90, 50 &60
*September 28, 2010*

**math**

three circles are externally tangent to each other. The radius of each circle is 6 inches. Find the following: a)the length of the shortest wire athat goes around them. b) the shaded area (space between them when stacked one circle on top of two)
*September 26, 2010*

**Alegbra 115**

thank you so do you think the way I did is also right
*September 25, 2010*

**Alegbra 115**

I have been trying this on my own and just want to know if this is right are not 2. Suppose that the linear equation y = 0.3x + 0.9 represents an estimate of the average cost of gas for year x starting in 2002. The year 2002 would be represented by x = 1, for example, as it is...
*September 25, 2010*

**english**

what are the similarities between "A Rose for Emily" and "Blu Winds Dancing"
*September 20, 2010*

**math**

5x-6y=12
*September 12, 2010*

**math 115**

You are planning to spend no less than $8000. and no more than 12,000 on your landscaping project. Write an inequality that demonstrates how much money will be willingto spend of the project
*September 7, 2010*

**Math 116**

What is an inequality
*September 7, 2010*

**Math**

how do I solve: -1 cubed-(-1)to the fourth +(-1) to the fifth - (-1)to the sixth thanks
*August 31, 2010*

**9th grade**

two of the forms of a linear equation are standard form and slope-intercept form. explain when each one is more useful
*August 26, 2010*

**MATHS**

The sum of three consecutive multiples of 3 is 36. The smallest of the three will be.....? answer is 9
*August 19, 2010*

**math**

What is the teacher wanting. 10,13,17,22,.........................25
*August 16, 2010*

**5th grade**

Ellie works at a camp. Her age is a multiple of 6 and a multiple of 8. what is the youngest age Ellie could be?
*August 12, 2010*

**math**

P (-1.3 less than or equal to Z less than or equal 0) P (-1.3 ¡Ü Z ¡Ü 0)
*August 7, 2010*

**math**

P(Z greater than 2.5)
*August 7, 2010*

**random variables**

For the standard normal random variable Z, compute the following probabilities. For the following problems, use four decimal places. 16. P (0 ¡Ü Z ¡Ü .9) 17. P (-1.3 ¡Ü Z ¡Ü 0) 18. P(Z > 2.5) 19. P(Z ¡Ý -.75) 20. P(Z...
*August 2, 2010*

**college**

if a license plate consists of 2 letters followed by 4 digits, how many different plates could be created having at least one letter or digit repeated? I know its not 6,760,000
*July 30, 2010*

**Statistics**

1-5 the question is asking if these they can be found in a linear programming model? I couldn't use the symbols of greater than or equal to because it makes a weird symbol after I post the question.
*July 30, 2010*

**Statistics**

Which of the following mathematical relationships could be found in a linear programming model? Choose YES if the relationship could be, and NO if it could not. A. YES B. NO 1. B-2A + 7B = 45 2. 4A - B less than or equal to 10 3. A + \ 2B greater than or equal to 22 4. 3A + ...
*July 30, 2010*

**Statisics**

Max 2A + 7B s.t. A + B greater than or equal to 12 2A + 2 B less than or equal too 26 B greater than or equal to 1 A, B greater than or equal to Which of the following would be found in the correct standard form? A. YES B. NO A + B - S1 = 12 2A + 2B - S2 = 26 2A + 2B + S2 = 12...
*July 30, 2010*

**linear programming**

For the linear program Max 2A + 7B s.t. A + B greater than or equal to 12 2A + 2 B less than or equal too 26 B greater than or equal to 1 A, B greater than or equal to Which of the following would be found in the correct standard form? A. YES B. NO A + B - S1 = 12 2A + 2B - S2...
*July 26, 2010*

**Linear programming**

Which of the following mathematical relationships could be found in a linear programming model? Choose YES if the relationship could be, and NO if it could not. A. YES B. NO 1. B-2A + 7B = 45 2. 4A - B less than or equal to 10 3. A + \ 2B greater than or equal to 22 4. 3A + ...
*July 26, 2010*

**Math-linear programming**

sorry the question goes with the one before this question
*July 26, 2010*

**Math-linear programming**

the exclamation Y, the symbol is actually greater than or equal to: A + B greater thanor equal to 12 2A + 2B less than or equal to 26 B greater tha or equal to 1 A, B greater than or equal to
*July 26, 2010*

**Math-linear programming**

Max 2A + 7B s.t. A + B ¡Ý 12 2A + 2 B ¡Ü 26 B ¡Ý 1 A, B ¡Ý
*July 26, 2010*

**Math-linear programming**

Which of the following mathematical relationships could be found in a linear programming model? Choose YES if the relationship could be, and NO if it could not. A. YES B. NO 1. B-2A + 7B = 45 2. 4A - B ¡Ü 10 3. A + \ 2B ¡Ý 22 4. 3A + 2B - AB = 12 5. 2A2...
*July 26, 2010*

**Math-linear program**

For the linear program Max 2A + 7B s.t. A + B ¡Ý 12 2A + 2 B ¡Ü 26 B ¡Ý 1 A, B ¡Ý Which of the following would be found in the correct standard form? A + B - S1 = 12 2A + 2B - S2 = 26 2A + 2B + S2 = 12 A - S3 = 1 B - S3 = 1 2A...
*July 26, 2010*

**algebra2**

minus
*June 27, 2010*