# Posts by kim

Total # Posts: 2,622

**chemistry**

Find the percentage of water in Na2CO3*2H2O?

**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?

**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

**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

**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

**Business**

Thank you again Ms. Sue!

**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

**Business**

B and A were my best guess. The descriptions seemed a like. Thank you!

**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....

**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. ...

**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?

**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 ...

**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...

**Science**

What is the number of moles of HCl neutralized by .1 M NaOH. When NaOH has 14.24ml

**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 ...

**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 ...

**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?

**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 ?

**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 ...

**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 ...

**Chemistry**

how to multiply 2.45 mol x 6.02x10^23

**Math**

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

**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 ...

**Math**

Thank you Steve for your response. I appreciate it very much.

**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 ...

**GLOBAL HISTORY 10 REGENTS!!**

Who (what group) was responsible for making moderate reforms during the French Revolution?

**Algebra**

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 ...

**Algebra**

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

**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)=_____

**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).

**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...

**ENGLISH 10 REGENTS HELP!!!**

three allusions from doctor canterbury tales

**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 ...

**help**

Its how the question was stated. I want to say 2 or 4 but I am not sure

**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.

**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...

**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 ...

**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

**CHEMISTRY**

I know how to balance redox reactions but the charges are weird and I don't know where I'm going wrong or what to do

**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)

**math**

She means me.

**math**

What is AB x BC?

**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.

**Pre-Cal**

Ohh ok thank you :)

**Pre-Cal**

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

**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?

**Algebra**

Find the zeros of f. f(x) = 2x2 + x − 21 x = ____ (smaller value) x = ____ (larger value)

**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) = _______...

**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)

**Goverment**

Amazing definitely a great topic!!! Thank you very much!!!

**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.

**Goverment**

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

**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?

**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.

**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

**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?

**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) =

**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) =

**Algebra**

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

**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.)

**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 ...

**HELP! Algebra. DONT UNDERSTAND**

A: x(a+2)

**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

**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.

**Materials Science**

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

**History**

explain why washington warns against habitual hatred or fondness for other countries?

**History**

explain how washington warms habitual hatred or fondness for other countries?

**History**

Yes

**History**

identify and explain the foreign policy for America proposed by Washington in this address

**math**

what are the missing numbers between 21 and 63

**Algebra**

Write the solution set of the inequality |x + 2| < 5 in the interval notation.

**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. ...

**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.

**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,∞)

**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, ...

**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 ...

**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?

**HISTORY**

no like for real 8th grader got me 100% on my test

**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?

**Science**

Ms sue can you help

**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

**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.

**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?

**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?

**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?

**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 ...

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

Thank you so much for your help! :)

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

Is this right? Delta T= (3.63C)(.223)= .809 C

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

Molar mass of C12H10 is 154.2078 g/mols C12H10 = .003 mols .2 molal delta T = 123. 4 C

**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!

**exam three americangov section 3**

If you need help..this deff isnt how to get it...

**Math**

Write a TRUE equation and explain why it is true. Ex.) 4+3=7

**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.

**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...

**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!

**algebra**

2.40x10=24.00+3.30=27.30

**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?

**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.

**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 ...

**math 3**

Help