Wednesday

August 24, 2016
Total # Posts: 2,511

**chemistry**

Find the percentage of water in Na2CO3*2H2O?
*November 19, 2014*

**chemistry**

9.03 of Mg combine completely with 3.48g of N to form compound. what is the percent composition of each element in this compound?
*November 19, 2014*

**chemistry**

29.0g Ag combine completely with 4.30g S to form a compound. what is the percent composition of each element in this compound
*November 19, 2014*

**math**

Patricia donated 1 pint of blood to the blood bank. The lab assistant divided Patricia’s blood equally into 3 bags. How much blood was in each bag
*November 18, 2014*

**math**

4 multiple choice questions with 3 possible answers. What is the probability of answering the first, third, and fourth question correctly? 1/3 x 1/3 x 1/3 1/3 = 1/81
*November 16, 2014*

**Business**

Thank you again Ms. Sue!
*November 16, 2014*

**Business**

The best feature of an organizational structure that evolves naturally is its? A.economy. B.clarity. C.practicality. D.use of staff positions My best guess is D
*November 16, 2014*

**Business**

B and A were my best guess. The descriptions seemed a like. Thank you!
*November 16, 2014*

**Business**

A new business has been launched with four employees who work for the entrepreneur-owner. As the owner contemplates growth in sales and personnel, she realizes that the next step of growth will involve the special problem of? A.intermediate supervision B.formal policies C....
*November 16, 2014*

**Physics**

The two masses (m1 = 5.0 kg and m2 = 3.0 kg) in the Atwood's machine shown in the figure are released from rest, with m1 at a height of 0.91 m above the floor. When m1 hits the ground its speed is 1.0 m/s. Assume that the pulley is a uniform disk with a radius of 12 cm. ...
*November 14, 2014*

**Math**

How would you write the following exponential form to logarithmic form: 4^y= (1/64) My answer is: log4(1/64)=y. Am I corret?
*November 13, 2014*

**Multiple regression**

1) Estimate a multiple regression equation to predict the price of houses in a given community. Employ all available explanatory variables. Is there evident of of multi-collinearity in this model? Explain your response and the associated implications. 2) The owner of a ...
*November 10, 2014*

**algebra**

Please Help Me Check My Work :) 1) Find the 5th term of - f(n)= 3(n-3) My answer- -279 2) Find the third term if the first term is 4 - f(n)= 2f(n-1)+2 My answer- 16 3) Find the third term using the explicit rule - f(n) 4-n/n+3 My answer- 1/6 4) Recursive Function- 1, -2, -5...
*November 8, 2014*

**Science **

What is the number of moles of HCl neutralized by .1 M NaOH. When NaOH has 14.24ml
*November 7, 2014*

**Algebra**

When a softball player swings a bat, the amount of energy E(t), in joules, that is transferred to the bat can be approximated by the function E(t) = −279.67t2 + 82.86t where 0 ¡Ü t ¡Ü 0.3 and t is measured in seconds. According to this model, what ...
*November 3, 2014*

**Algebra**

The height in feet of a projectile with an initial velocity of 32 feet per second and an initial height of 240 feet is a function of time in seconds given by h(t) = −16t2 + 32t + 240. (a) Find the maximum height of the projectile. ______ ft (b) Find the time t when the ...
*November 3, 2014*

**math**

if the inequality is: (x+5/x-2)>0 . "x-5 over x-2 greater or equal to 0". What would be the solution? a.(-infinity sign, -5] U (2, infinity sign) b.(-5,2) c.(-infinity sign, -5) U [2, infinity sign) d.[-5,2] My answer was C. Am I correct?
*October 31, 2014*

**SCIENCE**

a horticulturist wants a plant that produces flowers with a certain size and fragrance but is not aware of any one plant having all these traits. the quickest way she could achieve her goal would be to apply the process of ?
*October 30, 2014*

**Math/Physics**

The potential at the surface of a sphere (radius R) is given by V_0 = k cos 3theta where k is constant. Find the potential inside and outside the sphere as well as the surface charge density (lower case sigma(theta)) on the sphere. (assume there is no charge inside or outside ...
*October 30, 2014*

**Math/Physics**

My question is this: The potential at the surface of a sphere (radius R) is given by V_0 = k cos 3theta where k is constant. Find the potential inside and outside the sphere as well as the surface charge density (lower case sigma(theta)) on the sphere. (assume there is no ...
*October 30, 2014*

**Chemistry**

how to multiply 2.45 mol x 6.02x10^23
*October 26, 2014*

**Math**

than you again steve! I know I should have said "2" I am sorry. Thank you for correcting me. I appreciate your help.
*October 24, 2014*

**Math**

Using the Descartes Rule of Sign count the number of sign changes of f(-x) and determine the number of negative real zeros. 1. f(x)=x^3+x^2-10x-24 My answer: A few signs due change but not enough to say they changed." 0 sign changes of f(-x), which means f(x) has 0 ...
*October 24, 2014*

**Math**

Thank you Steve for your response. I appreciate it very much.
*October 24, 2014*

**Math**

Using the Descartes Rule of Sign count the number of sign changes of f(x) and determine the number of positive real zeros. 1. f(x)=x^3+x^2-10x-24 My answer: because the signs don't change the answer would be: "0 sign changes of f(x), which means f(x) has 0 positive ...
*October 24, 2014*

**GLOBAL HISTORY 10 REGENTS!!**

Who (what group) was responsible for making moderate reforms during the French Revolution?
*October 23, 2014*

**Alegbra**

The rate at which water evaporates from a certain reservoir depends on the air temperature. The table below shows the number of acre-feet (af) of water per day that evaporate from the reservoir for various temperatures in degrees Fahrenheit. Temperature, °F af 40 760 60 ...
*October 23, 2014*

**Algebra**

Find an equation of the line that satisfies the given conditions. Through (5, 3) and (4, 7)
*October 22, 2014*

**Algebra**

There were 39,000 desktop publishing jobs in the United States in 2000. It has been projected that there will be 64,000 desktop publishing jobs in 2010. (a) Using the BLS data, find the number of desktop publishing jobs as a linear function of the year. N(t)=_____
*October 22, 2014*

**Algebra**

Find the equation of the line, in slope-intercept form, that satisfies the given conditions. The graph is perpendicular to the graph of y = 5x − 9 and passes through the point whose coordinates are (3, −1).
*October 22, 2014*

**Math**

City Cellular purchased $28,900 in cell phones on April 25. The terms of sale were 4/20, 3/30, n/60. Freight terms were F.O.B. destination. Returned goods amounted to $650. a. What is the net amount due if City Cellular sends the manufacturer a partial payment of $5,000 on May...
*October 22, 2014*

**ENGLISH 10 REGENTS HELP!!!**

three allusions from doctor canterbury tales
*October 20, 2014*

**question**

David has a company decorating houses for the holidays. He has secured a $25,000 line of credit from his bank. For which purpose is David more likely to use this credit line? Question 19 options: a warehouse to store decorations until they are sold labor to install the ...
*October 19, 2014*

**help**

Its how the question was stated. I want to say 2 or 4 but I am not sure
*October 19, 2014*

**help**

Willam expects his new business to support him and his family. This means his asset and financing requirements will Question 7 options: 1. increase. 2. decrease. 3. remain the same. 4. depend on the size of his family.
*October 19, 2014*

**Business**

If the firm’s beginning cash balance for the budget period is $7,000, and this is its desired minimum balance, determine when and how much the firm will need to borrow during the budget period. The firm has a $50,000 line of credit with its bank, with interest (10 percent...
*October 19, 2014*

**math**

Question 2 of 20 5.0 Points In the equation x = 6 - 2y, x and y are: A. directly related. B. inversely related. C. both dependent variables. D. not related. Reset Selection Mark for Review What's This? Question 3 of 20 5.0 Points John puts $780 into his checking and ...
*October 19, 2014*

**Math**

I just wanted to double check that I am correct. 1.Find the zeros for the function: f(x)= 4(x-3)(x+2)(x-4)^2 Zeros are: 3,-2, 4(multiplicity 2) 2.Find the zeros for the function: f(x)= x^3-9x Zeros are: 0, 3, -3
*October 17, 2014*

**CHEMISTRY**

I know how to balance redox reactions but the charges are weird and I dont know where I'm going wrong or what to do
*October 15, 2014*

**CHEMISTRY**

Balance the following equation. (for a balanced eq. aA + bB → cC + dD, enter your answer as the integer abcd) CrO42−(aq) + H2O(l) + HSnO2− → CrO2−(aq) + OH−(aq) + HSnO3−(aq)
*October 15, 2014*

**math**

She means me.
*October 15, 2014*

**math**

What is AB x BC?
*October 15, 2014*

**Math**

Does anyone know an easy way to remember the leading coefficient test for end behavior? I cannot seem to remember how to determine the direction the graph should go on these problems.
*October 15, 2014*

**Pre-Cal**

Ohh ok thank you :)
*October 14, 2014*

**Pre-Cal**

The prerequisite for Statistics is precalculus. College of Nursing students (only) are eligible to have the prereq waived. What does waived means?
*October 14, 2014*

**Chem---DrBob222**

What are the relative rates of reaction of primary, secondary and tertiary alkyly halides in an SN1 substitution? Explain the reason for your answer? Thank you so much?
*October 14, 2014*

**Algebra**

Find the zeros of f. f(x) = 2x2 + x − 21 x = ____ (smaller value) x = ____ (larger value)
*October 13, 2014*

**Algebra**

A boat was purchased for $45,000. Assuming the boat depreciates at a rate of $4700 per year (straight-line depreciation) for the first 8 years, write the value v of the boat as a function of the time t (measured in years) for 0 ¡Ü t ¡Ü 8. v(t) = _______...
*October 13, 2014*

**Algebra**

Find the values of a in the domain of f for which f(a)equals the given number. (If there is no solution, enter NO SOLUTION.) f(x) = x2 − 4x − 19; f(a) = 13 a = ____ (smaller value) a = ____ (larger value)
*October 13, 2014*

**Goverment**

Amazing definitely a great topic!!! Thank you very much!!!
*October 11, 2014*

**Goverment**

I am actually not big on government issues and don´t watch the news much. The last 2 topics sound interesting. thank you Ms. Sue.
*October 11, 2014*

**Goverment**

I need to write a research paper relevant to the U.S. government or politics. I would like recent topics, please help.
*October 11, 2014*

**Math**

Whats the quickest way to tell how many solutions you will have. in a problem? a. solve for f(-X) b. set the equation equal to zero c. the highest deree will be equal to the number of solutions. My answer choice would be C. Am I correct?
*October 10, 2014*

**Algebra**

Graph the equation by plotting points that satisfy the equation. 5x + y = −4 What would the 4 points be? I'm getting: -5,21 -4,16 0,-4 4,-24 The graph only goes up to 10.
*October 8, 2014*

**Calculus**

slope of tan line to the ellipse is -4x/y for x^(2)/4+y^(2)/16 Are there any points where the slope is not defined? (Enter them as comma-separated ordered-pairs, e.g., (1,3), (-2,5). Enter none if there are no such points.) slope is undefined at
*October 7, 2014*

**Math**

When Synthetically dividing to find a real root out of all Possible Roots, what must the remainder be in order to prove that the PR is an actual root? A.1 B. 0 C.-1 D.Sq root of 1 E. i My answer is B. 0. Am I correct?
*October 6, 2014*

**Algebra**

Find the x- and y-intercepts of the graph of the equation. (Separate multiple ordered pairs with commas.) 4x − 5y = 4 x-intercept(s) (x, y) = y-intercept(s) (x, y) =
*October 6, 2014*

**Algebra**

Find the x- and y-intercepts of the graph of the equation. (Separate multiple ordered pairs with commas.) 4x − 5y = 4 x-intercept(s) (x, y) = y-intercept(s) (x, y) =
*October 6, 2014*

**Algebra**

Find the midpoint of the line segment having the given endpoints. (−5, −2), (8, 10)
*October 6, 2014*

**Algebra**

Find all points on the x-axis that are 10 units from the point (7, 6). (Hint: First write the distance formula with (7, 6) as one of the points and (x, 0) as the other point.)
*October 6, 2014*

**stat**

The heights of young American women, in inches, are normally distributed with mean mu and standard deviation 2.4 (sigma). I select a simple random sample of four young American women and measure their heights. The four heights, in inches, are 63 69 62 66 If I want the margin ...
*October 6, 2014*

**HELP! Algebra. DONT UNDERSTAND**

A: x(a+2)
*October 2, 2014*

**geometry**

a school playground is the shape of a rectangle 500 ft long and 100 ft wide. If fencing costs $16 per yard, what would it cost to place fencing around the playground
*October 1, 2014*

**Materials Science**

PS. So I'm curious too about the source, as I can see that the question is posted in 2014, and is the same as another question in here posted this year.
*October 1, 2014*

**Materials Science**

Final in a EDX-mechanics course - the deadline is today, so answer it tomorrow. :-)
*October 1, 2014*

**History**

explain why washington warns against habitual hatred or fondness for other countries?
*September 30, 2014*

**History**

explain how washington warms habitual hatred or fondness for other countries?
*September 30, 2014*

**History**

Yes
*September 30, 2014*

**History**

identify and explain the foreign policy for America proposed by Washington in this address
*September 30, 2014*

**math**

what are the missing numbers between 21 and 63
*September 30, 2014*

**Algebra**

Write the solution set of the inequality |x + 2| < 5 in the interval notation.
*September 30, 2014*

**Math**

I wanted to double check that I am correct on the work area and answers please. 1.Given f(x)=x+2 and g(x)= 3x-4. Find (f+g). Work: (x+2) + (3x-4) Answer: 4x-2 2.Given f(x)=x+2 and g(x)=3x-4. Find (f*g). Work: (x+2)(3x-4) Answer: 3x² +2x-8 3.Given f(x)=x+2 and g(x)=3x-4. ...
*September 30, 2014*

**English**

Can you have a prepositional phrase inside a prepositional phrase? Ex It remains extremely popular, (owing to its wooded paths, baseball diamonds, green lawns, and, (of course). the animals) in its famous zoo.
*September 30, 2014*

**Math **

I wanted to double check my work. I am trying to find the domain: 1. f(x)= x+5 Answer: No Domain 2. f(x) = 1 X+5 Work: x+5≠0 X=-5 Answer: (-∞,-5) ᴜ (-5,∞) 3. f(x)= √x+2 Work: x+2 ≥ 0 x ≥ -2 Answer: [-2,∞)
*September 30, 2014*

**Algebra**

If a researcher wanted to know the mean weight (the mean is the sum of all the measurements divided by the number of measurements) of women in the U.S., the weight of every woman would have to be measured and then the mean weight calculated, an impossible task. Instead, ...
*September 29, 2014*

**math**

Forensic specialists can estimate the height of a deceased person from the lengths of the person's bones. These lengths are substituted into mathematical inequalities. For instance, an inequality that relates the height h, in centimeters, of an adult female and the length ...
*September 29, 2014*

**Algebra **

20 foot wire is cut so that the longer peace is four times longer than the shorter piece.what are the lengths of each piece?
*September 27, 2014*

**HISTORY**

no like for real 8th grader got me 100% on my test
*September 25, 2014*

**Algebra**

The vendor of a coffee cart mixes coffee beans that cost $7 per pound with coffee beans that cost $5 per pound. How many pounds of each should be used to make a 50-pound blend that sells for $5.79 per pound?
*September 22, 2014*

**Science**

Ms sue can you help
*September 22, 2014*

**Science**

which of the following is a correctly balanced equation A.2Cu+O2--> 2CuO B.Mg + O2--> MgO2 C. 3KCI+HNO3-->3HCl+KNOW D. CaCO3---> CaO+CO3 answer b
*September 22, 2014*

**math skill sheet 777**

i have equal numbers of pennies, nickels ,dimes, and quarters. The total value of my coins is $2.05. Altogether i have ? coins. Please tell me how you did it and show your work please so i understand.
*September 19, 2014*

**physics**

Two 2.5 kg physical science textbooks on a bookshelf are 0.25 m apart. What is the magnitude of the gravitational attraction between the books?
*September 19, 2014*

**physics**

A jogger jogs around a circular track with a diameter of 325 m in 10. minutes. What was the jogger's average speed in m/s?
*September 18, 2014*

**physics**

Starting from rest, the car is going 29 ft/s (20 mi/h) at the end of 5.0 s. What is the car's average acceleration in ft/s2?
*September 18, 2014*

**Physics Help**

On a dare, you decide to try bungee jumping. You fall freely you are moving at 15 m/s downward. At that point the cord begins to stretch. The cord slows you to a stop as it stretches, then pulls you back upwards. When the cord is no longer pulling on you, you are moving ...
*September 15, 2014*

**Chem Help Please Urgent!!!!!!**

Thank you so much for your help! :)
*September 12, 2014*

**Chem Help Please Urgent!!!!!!**

Is this right? Delta T= (3.63C)(.223)= .809 C
*September 12, 2014*

**Chem Help Please Urgent!!!! Check**

Molar mass of C12H10 is 154.2078 g/mols C12H10 = .003 mols .2 molal delta T = 123. 4 C
*September 12, 2014*

**Chem Help Please Urgent!!!!!!**

What is the boiling point of a solution of 0.515 grams of acenaphthene (C12H10) in 15 grams chloroform (CHCl3) given pure chloroform has a b.p. of 61.7 C and a Kbp of +3.63 C. Thanks!
*September 12, 2014*

**exam three americangov section 3**

If you need help..this deff isnt how to get it...
*September 12, 2014*

**Math**

Write a TRUE equation and explain why it is true. Ex.) 4+3=7
*September 11, 2014*

**Theology 10 (HELP!!!!)**

At what times in your life have you found it easy to trust in God? does this question means what time in life did God helped with me.
*September 10, 2014*

**Theology 10 (HELP!!!!)**

At what times in your life have you found it easy to trust in God? What helped you? At what times in your life have you found it difficult to trust in God? What things hindered you. I'm NOT asking you to answer these questions for me but I'm having trouble writing this...
*September 10, 2014*

**Organic CHM Lab**

a) what is meant by the term flooding of the fractionating column and what causes it? b) Assume that no azeotropes are formed, would it be easier to separate n-hexane and benzene or n-hexane and toluene by distillation? expalin? Thank you!
*September 9, 2014*

**algebra**

A restaurant has fixed costs of $156.25 per day and an average unit cost of $4.75 for each meal served. If a typical meal costs $6, how many customers must eat at the restaurant each day for the owner to break even?
*September 9, 2014*

**math**

Starbucks sells a slice of Iced Lemon pound Cake for $2.45 and a bottle of Apple Juice for $1.75. If they run a food cost of 18% and a beverage cost of 8%, what is the gross profit on an order of 10 slices of pound cake and 6 bottles of Apple juice. Please show your work.
*September 5, 2014*

**Chem Help Please!!!**

Experiment Design You are asked to separate a mixture of toluene and cyclohexane. Assume that they do not form an azeotropic mixture. Design an experiment to do this. You must provide the following information. a) A diagram of the equipment you will be. b) What distillate ...
*September 3, 2014*

**math 3**

Help
*September 2, 2014*

**ethics**

Traits of character that dispose a person to act in a moral fashion are typically referred to as: Answer Vices. Character tendencies. Dispositional values. Virtues.
*September 1, 2014*