Tuesday
July 29, 2014

Posts by donna


Total # Posts: 431

Alegbra
System of equation. substitution or elmination method??

Alegbra
yes

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

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

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?

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?

Algebra
This is my first asking I did not do this before?

Algebra
This is my first asking I did not do this before?

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 ...

Algebra
Thank you I did not see the answer. Thank you so much

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 ...

arithmetic
I am 5'2 and cast a shadow 3' long. My friend casts a shadow 3' 5" long. How tall is he?

health
Why would the task of Universal health care coverage raise health care costs?

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?

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?

algebra
y >=-1

algebra
the xx is in the answer box, so it is x x then the answer

algebra
0.8x+1<=1.2x-8 x x

algebra
9x-7y=-49

Algebra
p(x)=x^2-2x+10

Algebra
y varies directly as x, and y=20 when x=5

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

math
A foyer is 8 feet by 8 feet the tiles are 4 square feet how many tiles will fill the space

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

patients records
what is an accreditation agency and name an area of records management that is affected by its guidelines.

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

College Algebra
This is my problem I need help with. (7,-8); 3x+5y=6

College Algebra
This is my problem I need help with. (7,-8); 3x+5y=6

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

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

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

chemistry
3 Fe + 4H2O= Fe3O4 + 4H2

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?

MATHS
Complete the pattern. 1,1,4,25,--------,749956 Thanks for your help

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...

Math
complete the pattern: 1, 64, 2 ,32, 4, 16, ___ , ____.

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

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...

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.

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...

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. Wri...

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. Wri...

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

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 i...

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 ...

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 pla...

college biostatistics
if the mean bp is 110 and the standard deviation is 15 where would 95% of population be

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?.

math
how is it possible for a triangle to have angles of 90, 50 &60

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)

Alegbra 115
thank you so do you think the way I did is also right

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...

english
what are the similarities between "A Rose for Emily" and "Blu Winds Dancing"

math
5x-6y=12

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

Math 116
What is an inequality

Math
how do I solve: -1 cubed-(-1)to the fourth +(-1) to the fifth - (-1)to the sixth thanks

9th grade
two of the forms of a linear equation are standard form and slope-intercept form. explain when each one is more useful

MATHS
The sum of three consecutive multiples of 3 is 36. The smallest of the three will be.....? answer is 9

math
What is the teacher wanting. 10,13,17,22,.........................25

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?

math
P (-1.3 less than or equal to Z less than or equal 0) P (-1.3 ¡Ü Z ¡Ü 0)

math
P(Z greater than 2.5)

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 ...

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

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.

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 + 2...

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...

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...

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 + 2...

Math-linear programming
sorry the question goes with the one before this question

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

Math-linear programming
Max 2A + 7B s.t. A + B ¡Ý 12 2A + 2 B ¡Ü 26 B ¡Ý 1 A, B ¡Ý

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...

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 ...

algebra2
minus

algebra2
i dont think there is a solution for this one. 3-y=1 _____ 4-y y-4 help please

algebra2
y-6= 2/7 ____ y+4

algebra2
its suppposed to be y=

algebra2
y-6 bottom number y+4 and then 2 with a lind on bottom and 7

algebra2
y-6=2 y+4 _= help 7

sociology
I need a 200 page story describing how the yanomamo indians relate to a concept in the sociology book

History 125
Create a five to seven-point bullet point list of the factors that led to political stalemate and the subsequent farmer's revolt in the late 19th century

college
Find the slope and the y-intercept of the line, 5x=8y+72

Business
For a continuous random variable x, the population mean and the population standard deviation are 80 and 15 respectively. You extract a sample of 25 elements from this population. The mean of the sampling distribution of the sample mean is

math
At a party, there were 105 handshakes. If each person shook hands exactly once with every other person, how many people were at the party?

HCA/220
How might a foundation in medical technology help you in fulfilling your education? How might a basic understanding of medical terminology benefit you personally?

science help please
Asexual reproduction is reproduction which does not involve meiosis, ploidy reduction, or fertilization. Only one parent is involved in asexual reproduction. Sexual reproduction involves processes like meiosis and fertilization to pass a combination of genetic materials to off...

Social Studies
Farmers¡¦ Revolt „h Create a bullet point list of the factors that led to political stalemate and the subsequent farmers¡¦ revolt in the late 19th Century. Adress the relationship between the issues the political system dealt with in the Gilded A...

College Chemistry
A 0.05 molal aqueous solution boils at 373.102 K. What is the salt in question? a. AlCl3 b. NaHSO3 c. MgCl2 d. NH4Cl e. NaCl I guessed NH4Cl and got 3 points off. I used the formula delta T=K boiling point X molality

College Chemistry
The boiling point of a liquid at atmospheric pressure is the temperature: a. at which bubbles of vapor expand within the liqud b. at which the liquid solidifies c. at which the vapor pressure first exceeds the critical temperature d. at which the vapor pressure is equal to the...

college Chemistry
An aqueous solution of hydrogen peroxide, H202 (MW=34.01amu), is labeled 10.0% by weight. What is the molal concentration of H202? All I really know is that molality = moles of solute per kilogram of solution

College Chem
If equal masses of O2 and N2 are placed in identical containers at the same temperature, which of the following statements is (are) true? a. both flasks contain the same number of molefules b. the pressure in the N2 flask is greater than in the other container c. there are mor...

College Chem
If equal masses of O2 and N2 are placed in identical containers at the same temperature, which of the following statements is (are) true?

College Chem
The boiling point of water at 756 mm Hg is 99.85 degree C. What mass percent of surcrose (C12H22O11) should be present to raise the boiling point to 100.00 degree C at this pressure?

math
An inheritance of $50,000 is divided into two investments earning 8.5% and 10% simple interest. ( The 10% investment has a greater risk.) Your objective is to obtain a total annual interest income of $4700 form the investments. What is the smallest amount you can invest at 10%...

math
a truck driver traveled at an average speed of 48 miles per hour on a 100-mile trip to pick up a load of freight. On the return trip with the truck fully loaded,the average speed was 40 miles per hour. Find the average speed for the round trip.

college
how many grams of magnesium are required to produce 2.154 g of magnesium nitride?

college
how to figure out how many grams of magnesium are required to produce 2.154grams of product?

CHEMISRTY
HOW MANY GRAMS OF MAGNESIUM ARE REQUIRED TO PRODUCE 2.154 GRAMS OF PRODUCT? STEP BY STEP EXPLAINATION

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