November 30, 2015

Posts by katy

Total # Posts: 423

a number is divided by 3 and then 7 is added to the quotient. The result is 11. Find the number
September 15, 2008

I need help with my science class. My teacher wants us to come up with property tests for many different substances to indentify them. I need three property tests for: Coal, Rope, Cloth, Plastic, Paper, Bean, Copper Granuals, Sand, Flower Petal and Rubber. Can you help me find...
June 9, 2008

Using the z-table (Table E) find the critical value (or values) for a = .018 left tailed test.
April 29, 2008

4y-9=15 +9 +9 -- -- 4y+0=24 ÷4 ÷4 -- -- y = 6
April 6, 2008

Wow! Thanks
March 25, 2008

Is there a way to fix the current economy since it is not doing too well right now, or is just going to fail?
March 25, 2008

Environment.. again
I'm stumped with another question too. Can petroleum fractions be separated at room temperature on the basis of their viscosities? I would guess that they could but i don't know how to explain it
March 24, 2008

Why is the density of oil a key factor with oceanic spills and fire? I can't find the answer in my book
March 24, 2008

Math Nightmare
use the trapezoidal rule with the scale so its height =1, so (1/2) (1.5+ 2*1.6+ 2*1.8+ 2*1.9+ 2*2.0+ 2*2.1+ 2.1) which equals 11.2 so 119/11.2= 10.625 or 10.63 and that is the answer
March 13, 2008

Oh.. well we haven't learned the shorthand configuration yet so really don't know if my answer is correct or not
March 10, 2008

The electron configuration for Europium? I think it's 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f7 Is that right? I'm not sure if I did it right with the f block.
March 10, 2008

trying to find a fraction riddle. I'm a fraction greater than 1/2 and less than 3/4. My numerator is 5 times 1. what fraction am I? How do you explain the answer?
March 10, 2008

What is a good science project to do? I am in 8th grade and am studying earth science. I need to present the project in front of class. Im really nervouse.
January 27, 2008

January 12, 2008

Language Arts
Hi. hmmm. im doing a worksheet for my language class, and its on the last of the mohicans, i need help.
December 3, 2007

the wind blowing on a vertical surface varies jointly as the area of the surface and the square of the velocity. if a wind of 40 mph exerts a force of 50 pounds on a surface of 1/2 square foot , how much force will a wind of 80 mph place on a surface of 2 square feet the ...
October 1, 2007

Show the conhecture is false by finding a counterexample... 1. The differnece of the absolute value of two numbers is positive meaning /a/ - /b/ > 0 I do not get that.... =/ HELP. If absolute value of a is greater than the absolute value of b, then the difference has to be ...
August 14, 2007

What is it called when the subject (being you) is automatically understood? Like... Go shut the door. the subject is understood to what is that called? "Go shut the door." is an imperative sentence because it gives a command. Most imperative sentences have ...
August 12, 2007

The lord of the flies-English
what is the irony of Samneric's behavior in Chapter 12
December 3, 2006

dumb math
November 27, 2006

Chemistry-Formal Charge
I have a test tomorrow and I don't really understand how to do formal charge and I've been looking at it and it just isn't clicking. Thank you for your help. Count the electrons around the atom. If the electron(s) is/are shared with another atom, half goes to one ...
November 21, 2006

word unscramble
September 28, 2006

How do I translate my spanish Thank you for using the Jiskha Homework Help Forum. First of all you need to determine the vocabulary in the sentence. When you actually post some work here we can help you use the dictionary. The very BEST way is to look up the English word, ...
August 29, 2006

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