Saturday

November 28, 2015
Total # Posts: 467

**statistics**

For the following scores, find the (a) mean, (b) median, (c) sum of squared deviations, (d) variance, and (e) standard deviation 3.0, 3.4, 2.6, 3.3, 3.5, 3.2
*August 14, 2011*

**statistics**

A psychologist interested in political behavior measured the square footage of the desks in the official office of four U.S. governors and of four chief executive officers (CEOs) of major U.S. corporations. The figures for the governors were 44, 36, 52, and 40 square feet. The...
*August 14, 2011*

**early childhood education**

children with special needs may have delays or be slow to progress in one or more areas they a)usually required special equipment to help them move around b)need opportunities to interact with nondisabled children c)have difficulty fitting in with other children d)are good ...
*August 14, 2011*

**Early childhood education**

Julie has a speech delay and is often shy with other children. The best way to include her in your daily group activities is to a)ask a volunteer to provide her with individual attention b)provide her with some books to read while you work with other children c)let her watch ...
*August 14, 2011*

**math**

C(x)=(x-1)/(x^(2)-25)
*July 29, 2011*

**chemistry**

calculate the amount of energy (kJ) lost when 50 mL of water at 0 Celcius freezes at 0 Celcius
*July 24, 2011*

**math**

graph (3,5) (8,-1)
*July 24, 2011*

**Medical Coding ICD-9-CM**

A 75-year-old male presented to the ambulatory surgical unit for a cystoscopy. The patient's complaint was hematuria. A transurethral diagnostic cystoscopy was performed. No acute or abnormal findings were determined to be the cause of his hematuria. The patient was sent ...
*July 5, 2011*

**calculus**

if a rocket is launched upward at 80fett per second. what will its height be at (t) seconds later s= 80t-14t^2
*June 19, 2011*

**finance/math**

the amount of loan a bank can make is limited tothe amount equal to its excess reserve.
*May 16, 2011*

**Chemistry**

Dilute H3PO4(aq) and NaOH(aq) are mixed in chemically equivalent quantities. Write the formula equation for the reaction
*April 30, 2011*

**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*