Thursday

November 26, 2015
Total # Posts: 534

**math**

Factor the trinomial c^2+5c+6
*May 2, 2008*

**calculating infinity**

1) I get it, except for lim (-1)^(n) = ? n-> +infinity is infinity even or odd? This is important because the result determines wheter the series that i was given is convergent or divergent. 2) in another excercise I encauntered the following problem: is the following ...
*April 16, 2008*

**calculating infinity**

can someone tell me wich one of the two awnsers for these two limits is correct? lim (-1)^(n) = 1 or -1 n-> +infinity lim (-1)^(n) = 1 or -1 n-> -infinity Thanks in advance.
*April 16, 2008*

**Biology**

sorry a few more questions why can DNA form fibres that allow it to seprate from RNA while RNA cant form such fibres? also, when treated with DNAse, I know DNA viscosity reduces because its cut up into smaller pieces. but on a graph of viscosity vs time, I have this ...
*April 9, 2008*

**Biology**

What does base do to DNA when it is added to it?
*April 9, 2008*

**Physics**

how do i find gravitational potential energy without being given the height?
*March 26, 2008*

**Physics**

A boy weighing 40kg runs at 8.0m/s grabs a rope and swings of level ground. What maximum height does the child reach? How do I solve this?? it is under the conservation of energy section of work, power and energy. any help would be great! thanks
*March 26, 2008*

**algebra**

x+1/x=-7/x-12
*March 2, 2008*

**Math**

find the area and permiter of trapazoides?
*February 19, 2008*

**algebra**

polynomial subtraction a-a2-a-6/2(a-3) a-a(squared)-a-6 divided by 2(a-3)
*February 7, 2008*

**spanish**

Can someone please check this for me? How long has it been since the following people have done the following things? Write the answers using the expression hacer + time. 1) Santi y Silvina: no estar casados / un año Your response: Hace un año que Santi y Silvina...
*February 5, 2008*

**Physics**

I NEED HELP.... I look in my text for an inverse square law and i get G=M1M2/d^2, But im not given a two masses. The repusive force between two ceramic magnets was measured and found to depend on distance, as given in the table. Separation, d (mm) Force,F (N) 10 3.93 12 0.40 ...
*October 31, 2007*

**pre-calc**

(8y2+3y-7)(3y+4)
*October 17, 2007*

**Organic chemistry: dehydrohalogenation**

P.S. I understand the mechanisms of E1, E2, and dehydrohalogenation. I just don't know how to find out whether an alkyl halide undergoing dehydrohalogenation will follow an E1 or an E2 reaction.
*October 10, 2007*

**Organic chemistry: dehydrohalogenation**

Hello. I know you guys don't do organic chemistry but because I got so much help from you guys in general chemistry, I was wondering if you guys can help me out again. :P Here's my question. In dehydrohalogenation, how do you know whether a reaction is E1 or E2? My ...
*October 10, 2007*

**math**

What is the probability of a die not coming up six, six times in a row? How do I solve that problem?
*October 1, 2007*

**Math**

Can you show me how to solve this problem? You have a die, what is the probability you will not get a six, six times in a row?
*October 1, 2007*

**general math**

I have 20 puzzle tables (1,2,3,…,20) that contain of 10 rows (1,2,3,…,10) each. There are numbers 1,2,3,4,… in each of every tables, which has a unique position to every rows. I am just wondering if you can help me how to find the relations between them, so the ...
*September 25, 2007*

**Calculus**

OK trying again. For what (numerical) of the constant "c" is the function f(x)= {x^2-cx if x is greater than -1 {cx^3+x if x is less than or equal to -1 continuous on (- infinity, +infinity)?(Justify answer!)
*September 16, 2007*

**Calculus**

For some reason the answer to this question is alluding me, Im sure its probbly something simple im just over looking. For what (numerical) value of the constant "c" is the function continous on (-?,?)?( Justify Answer) f(x)= x^2-cx if x>-1 cx^2+x if x?-1
*September 15, 2007*

**computer graphics**

You purchase the latest "must have" computer video game from the store. The game has fantastic graphics but it runs rather slow on your computer. What must you do to increase the performance of the game? 1. Install a GVA adapter that has more ROM. 2. Install a video ...
*June 13, 2007*

**History**

I'm writing a paper on the ties between the education system and the US government. My question is, what are some major things that the government has done for the school system in the last 25 years? Title I, Title II, Title VII, Title IX, etc. http://www.google.com/search...
*June 3, 2007*

**science**

Radiation: radiation is the transfer of energy along electromagnetic waves like light waves and radio waves Conduction: conduction is the transfer of heat between objects or substances that are in direct contact with each other Convection: convection is the transfer of heat by...
*May 1, 2007*

**General chemistry ligand**

Hello. I have a question about ligands. How do you figure out how many ligands a central metal cation can have? For example, Cu^2+ and NH3. When they combine, it forms Cu(NH3)4^2+ Why does it form 4 ligands oppose to 6? A general rule, which isn't always followed, is to ...
*April 26, 2007*

**Calculus**

Please.... I need your help! I posted this question yesterday and no one has answered it yet. Can anyone help me please? My question was: The Taylor series about x=5 for a certain function f converges to f(x) for all x in the interval of convergence. The nth derivative of f at...
*March 18, 2007*

**calculus-- need help desperately!**

The Taylor series about x=5 for a certain function f converges to f(x) for all x in the interval of convergence. The nth derivative of f at x=5 is given by f^(n) (5)= (-1)^n(n!)/((2^n)(n+2)), and f(5)=1/2. Write third degree Taylor polynomial for f about x=5. Then find the ...
*March 17, 2007*

**earth science**

Info on the largest earthquakes http://earthquake.usgs.gov/regional/world/historical.php
*March 13, 2007*

**Watershed?**

the watershed comes from your booty it flows out of your mouth to your ass
*November 1, 2006*

**word unscramble**

lrecilac ecprepiont
*September 28, 2006*

**Lattice method/math**

329 times 4????????????????
*September 19, 2006*

**math**

Solve for b2: A=1/2h(b1+b2)
*August 15, 2006*

**Math help!**

I dont understand this. Solve -5x - 6 = -6x^2 Rearrange to 6x^2-5x-6=0 (3x + 2)(2x - 3)= 0 Set each factor equal to zero and solve for x. I hope this helps.
*June 25, 2006*

**Math help 2**

And this one is troubling me. 3x^0 - 2(x - 3^0) - |-11 - 2| = 4x(2-5^0) - 7x please help. Thanks I don't know if you are aware of this, but anything to the "zero power" = 1 and the vertical lines indicate absolute value (regardless of sign). So this translates to...
*June 22, 2006*

**Math Help**

How is this problem done? it's not coming out right for me. solve for c: x = p(1/a + m/c) cax=pc+ ma c(ax-p)=ma then divide by ax-p check my thinking.
*June 22, 2006*