# Questions Asked onNovember 23, 2006

1. ## Chemistry

Hi. Is PO4(3-) polar or non-polar? Why or why not? Thanks! Look up the electronegativity of P and O. I think I remember that O is about 3.5 and P is about 2.1; therefore, each P-O bond is somewhat polar. Thus, the ion will be polar unless the Lewis

2. ## Probability

A department store has determined that 25% of all their sales are credit sales. A random sample of 75 sales is selected and the proportion of credit sales in the sample is computed. a) What is the probability that the same proportion will be greater than

3. ## Probability

A salesperson contacts eight potential customers per day. From past experience, we know that the probability of a potentail customer making a purchase is 0.10. a) What is the probability the salesperson will make at least two sales in a day? -Do you use

4. ## Calculus, AntiDerivatives

I need help with this problem: A car traveling at 43 ft/sec decelerates at a constant 5 ft per second squared. How many feet does the car travel before coming to a complete stop? I'm not sure where to start, i know how to find antiDerivatives, but i don't

5. ## Calc

A car traveling at 43 ft/sec decelerates at a constant 5 feet per second squared. How many feet does the car travel before coming to a complete stop? i tried a few different equations, none of the worked. 43t - 5t^2 = 0 43 - 10t = 0 21.5t^2 - (5/3)t^3 = 0

6. ## Calculus

A three-sided fence is to be built next to a straight section of a river, which forms the fourth side of a rectangular region. The enclosed area is to equal 3200 m2. What is the minimum perimeter that such a fence can have? I developed two equations:

7. ## Economics

Consider total cost and total revenue given in the following: (Quantity/Total Cost/Total Revenue): (0/8/0), (1/9/8), (2/10/16), (3/11/24), (4/13/32), (5/19/40), (6/27/48), (7/37/56) Can you tell whether this firm is in a competitive industry? If so, can

8. ## Math

^=exponents /= divide So I am not sure how to do this. It is an example in my book but I still don't get it. Can you work through ti so I can do my real work. (-1^2+-1^-2)^-1 (-1^2+-1^-2)^-1 = First, do work within the parentheses. -1*-1 = 1 and -1-2 =

9. ## Topic of College Essay -- Draft

Any one can help me to revise this college essay? It is very important for me, your help will me invaluable for me!! Thank you! Question: At the University of Maryland, we value a diverse community. How have your life experiences and background shaped you

10. ## QUESTION--CHILD DEVELOPMENT

Can someone tell me what a transiition activity is? Transition means to move smoothly from one thing to another, in this case from one activity to another. For example, if children are working on math and the next activity is reading-based, the teacher

11. ## logic riddle

please figure out WHAT THE AUTHOR DID... A SIN OF OMISSION around midnight, a sly looking man slips into a luxury city building. a woman occupant, watching his actions from a fourth-floor window, grows suspicious and dials 911 for a patrol car. This lady

12. ## Punctuation

Rewrite the following sentences, focusing on the grammar area specified in the left column. --- Punctuating 1. With five gallons of gas. 2. The goose bit the mailman on the leg. 3. Because the store was closed. One of these sentences is correct. One

13. ## math

how to find the reciprocal?? you flip the reciprocal example (4 over 5 the reciprocal will be 5 over 4. If it is a fraction, switch the numerator with the deniminator. Example: reciprocal of 2/7 = 7/2 = 3 1/2 If it is a mixed number, write it as a fraction

14. ## Early Childhood Education

Which of the following is NOT an example of a transition activity? A. Giving the children a 5-minute warning to alert them to upcoming changes. B. Having the children form a train with adults as the engine and caboose or with a dragon with head and tail C.

15. ## English

In the banquet scence (Act III Scene iv), what complaint does Macbeth make about murdered men? I read it 10x through and found various complaints, but can't pinpoint which one. If he ignored his father's words,he would repent for it

16. ## Algebra and Discrete Geometry

A large family wedding for the Smiths will require 113 trays of sandwiches, 116 trays of hors d' oeuvres, and 144 trays of sweets. Hands-Off caterers can make 15 trays of sandwiches, 10 trays of hors d'oeuvres, and 12 trays of sweets in one day. Hands-Free

17. ## ProjecT management

What steps and tracking methodologies are utilized in your Company to ensure resources are effectively managed throughout the entire project life cycle and to ensure that the impacts of constraints are minimized?

18. ## Project Management

How does the responsibility matrix assist the project manager and resource managers to allocate resources to a project? Is this tool used by your Company? If so, is it effective? If not would it be effective if instituted? Why, what were/would be the

19. ## english

unscramble words viktoescl Try these: http://www.ssynth.co.uk/~gay/anagram.html http://www.unscramble.net

20. ## social studies

I have completed my education but can't find a job. How can I organize politically to change this situation within the norms of Canadian politics? Work to get your Native population better conditions. Always a needfull situation. What kind of job are you

21. ## Project Management

What are some examples, from your Company Projects, of constraints that can affect a project? Of these constraints, which are imposed internally? Which are imposed externally? How do your Company Project managers deal with these constraints? do you have

22. ## Managerial Economics--REALLY NEED HELP BY TOMORROW

Auto Maintenance Services (AMS) is a small auto service outlet in a suburban area of Syracuse. In reaction to a small increase in wages that has caused the marginal cost of this auto service establishment to increase from \$25 to \$30, the owner is

23. ## math

Suppose we draw semicircles on the sides of a triangle and compute their areas. If the sum of the areas of two of the semicircles equals the area of the third, is the triangle a right triangle? Yes. (pi/2)(a^2 + b^2) = (pi/2) c^2 if and only if a^2 + b^2 =

24. ## English text

I am going to comment on this: "The ability to track objects and people brings all kind of applications to mind, but it also creates concerns about privacy and civil liberties. There have been suggestions that Galileo will be like Big Brother" Hope someone

25. ## home-econimics

explain the aims and objectives of home-econimcs? with 10-15 headings plzzz do it fast post what you have and we'll give you help from there. Home Ec. is for teaching people to manage thier everyday lives....

26. ## math!

What degenerate form or forms of the parabola CANNOT be obtained from the intersection of a plane and a double napped cone? I have to use a diagram and give complete description how to obtain this ( or these) form(s) but what diagram would i use???

27. ## Music

Did Quincy Jones begin his career playing trumpet with Lionel Hampton? Yes. reference: http://www.rhino.com/store/ProductDetail.lasso?Number=74363 Thanks for the information.