Total # Posts: 720
Find the critical number(s) of f(x)= abs(2x-4) What is the derivative of abs(2x-4)? Is it abs(2)? No. You have to specify the domain of x. At x=2, this function has no derivative. At x>2, f' = d (2x -4)/dx= 2 at x <2, f'= d(4-2x)/dx= -2 You have to watch for ...
December 17, 2006
A crate slides down an incline right angled trough. The coefficient of kinetic friction between the crate and the trought is mew_k(not sure if i spelt it right). What is the acceleration of the crate in terms of mew_k theda and g? I think I need to use F=ma and then to find a ...
November 28, 2006
On an incline plane (raised to 30 degrees) is a block A which has a mass of 10 kg. It is attached to a string which goes through a frictionless massless pulley. attached to the other end of the string is an other Block B. The coefficient of kinetic friction between the mass ...
November 28, 2006
Can someone explain why the ratio of magnesium ions to chloride ions in MgCl2 is 1 :2 Mg is in group IIA and has two electrons in its outside shell. Cl is in group VIIA and has seven electrons in its outside shell. Mg wants to lose two electrons; Cl wants to gain one electron...
November 15, 2006
Drug Abuse and Addiction
I need research sources for drug abuse and addiction. Thank you. Check these sources -- http://www.nida.nih.gov/ http://teens.drugabuse.gov/ (Broken Link Removed) http://www.drugabusestatistics.samhsa.gov/ http://www.mayoclinic.com/health/drug-addiction/DS00183 http://www....
November 12, 2006
Which element listed should have chemical properties similar to fluorine (F) A.Li B.Si C.Br D.Ne Br, along with F, a halogen (column 7 of the periodic table) Look at the periodic table. The columns are called groups. Elements in the same group have similar chemical properties.
November 9, 2006
Can you please give me a website where I can find information on Thomas Nast? http://en.wikipedia.org/wiki/Thomas_Nast WHAT KINDS OF CHANGES DID CHURCH CRITICS WANT TO MAKE? WHAT ROLE DID MARTIN LUTHER PLAY IN THE REFORMATION WHY DID LUTHER'S IDEAS LEAD TO WAR? LUTHER ...
November 4, 2006
An Amtrak heading toward Boston at 90 miles per hour would go how far in eight and ahalf hours? asl? 17/M/MD Why?? 90 mi/hr x 8.5 hrs = ?? 765miles go to this site and sign up then add me as a friend:grab . com Mira_Me_Bien is my sn right. Note that in my equation the mi/hr x ...
November 1, 2006
is the following sentence true or false? Mendeleev used his periodic table to predict the properties of undiscoverd elements.. True: Mendeleev used his periodic table to predict the properties of a undiscoverd element.
October 31, 2006
Fair and Impartial Jury?
Hello, I have a question on a study guide that I am not sure of the answer to: In a criminal case, does a defendant has the constitutional right to a fair and impartial jury? My instinct is to say yes, however, I looked at the 6th ammendement which states: "In all ...
October 28, 2006
find the HAs of y = (x-9) / sqr(4x^2 + 3x+ 2) What happens to y as x goes to +/- infinity? Specifically, is y approaching some limit from above or below? ?? I see your question was to just find the horizontal asymptotes and not to evaluate the function's approach to them. ...
September 27, 2006
need to find: lim as x -> 0 of 4(e^2x - 1) / (e^x -1) Try splitting the limit for the numerator and denominator lim lim x->0 4(e^2x-1) (4)x->0 (e^2x-1) ______________ = ________________ lim lim x->0 e^X-1 x->0 e^x-1 Next solve for lim x->0 and simplify
September 26, 2006
Consider the following balanced equation: 2 Na + 2 H2O ? 2 NaOH + H2 If 92.0 g of sodium reacts with 76.0 g of water until completion, which reactant will remain, and in what quantity?
September 24, 2006
how many grams of H2 (g) are produced by the reaction of 1.35 g Al with 75.0 mL of 3.44 M HCl Here is the way to do most of these stoichiometry/limiting reagent type problems. Step 1. Write a balanced chemical equation. 2Al + 6HCl ==? 3H2 + 2AlCl3 Step 2. Convert what you have...
September 24, 2006
Point P is on the number number line. The distance between O and P is four times the distance between P and 30. What is the sum of two possible values of P? What are two possibilities for the coordinates? Let me make sure I understand what's asked. "Point P is on the ...
September 7, 2006
Help on finance
Donna and Sherman Terrel are preparing a budget for 2003. Donna is a systems analyst with an airplane manufacturer, and Sherman is working on a master's degree in educational psychology. The Terrels do not have any children or other dependents. Donna estimates her salary ...
June 11, 2006