Monday

March 30, 2015

March 30, 2015

Total # Posts: 521

**chem**

plz help If you carefully place a steel razor blade flat on the surface of water, the razor blade can be made to float. Explain this result, given that the density of steel is much greater than that of water. I'm not really sure what the answer is. I think it has something...
*April 18, 2007*

**Math--Area**

Find the area of each regular polygon to the nearest tenth. Octagon with side length of 10 kilometers. Heres what I tried; but I don't know if im on the right track. Area=1/2 * Perimeter* Apothem Perimeter=base of octagon* number of sides Perimeter=10*8=80 km. SO A=40a (1/...
*April 4, 2007*

**explicit formula**

YO MAMA.
*April 3, 2007*

**math proportions**

dont know i am so dum at math
*February 25, 2007*

**Algebra**

Rationalize the denominator. Assume that all variables are positive. 5x^4y/2x^2y^3 There are square root signs around both parts of the fraction, but I cannot make them on the computer. Thanks in advance. are u using the carrot symbols to mean to the power of...? Yes Come on, ...
*February 24, 2007*

**Algebra2- Inverses**

The Law of Gravitation is represented by the formula Fg=G(m1m2/r2) What would be the inverse of this function Fg-1? What would this force represent? Can someone plz hurry and answer this for me
*January 9, 2007*

**Algebra Functions**

I cannot for the life of me remember how to do this- Find the vertex of the graphs of the functions: Function #1: y=(x-4)(x+2) AND Function #2: y=2x^2-4x+1 Can someone help me get it PLz! OK - to find the vertex of these functions you must have them in quadratic form where the...
*January 4, 2007*

**ART**

For an art project, I have to try and find an artist(preferably famous- so that i can find information on him/her)that draws/paints buildings. As i am having trouble finding one. Thank you if you can help! Thank you for using the Jiskha Homework Help Forum. This is an ...
*December 4, 2006*

**chemistry 12**

sry, a misprint. its: O2+2F2 <--> 2OF2 The question is looking for Kc. 2.50 mo of oxygen and 2.50 mol of fluorine gas are placed in a 2.00L glass container at room temperature. The container is heated to 400K and the following equilbirum is established: O2+2F2 <-->...
*November 20, 2006*

**history**

im reading the book kinf arthur i need help! who did launcelot marry? You can find that at the following site: http://en.wikipedia.org/wiki/Lancelot
*November 13, 2006*

**Slope Form!!**

2x + y = 9 *You need to put it into slope form and solve for x and y!PLz help! y= -2x + 9 -2,intercept: -7
*November 5, 2006*

**MATH HELP!**

Len has 2 one doller bills 3 qaurters 4 dimes 1 nickel and 3 pennies. How much money does he have in all.
*October 10, 2006*

**Physics**

26.7
*September 19, 2006*

**Algebra**

Can someone please help me with these algebra problems? The directions are: Solve the equation or formula for the indicated variable. m=ax+bx for x 8=mx+ax-2 for x ax+bx-3=4 for x Anything is helpful! Thanks. For m=ax+bx for x you would use the distributive property to get m=(...
*September 10, 2006*

**Home Economics**

List 5 careers that are possible from 3 areas in Home Economics. Why don't you list the areas of Home Economics first, then match those areas up with careers. I can think of cooking, sewing, (by the way, most Home Ec departments now prefer to be called Family and Consumer ...
*September 8, 2006*

**Math**

Your Aunt will give your $1,ooo if you invest it for 10 years in an account that pays 20% interest compounded annually. That is, at the end end of each year your interest will be added to your account and invested at 20%. What will your account be worth at the end of 10 years...
*August 30, 2006*

**Math**

Your Aunt will give your $1,ooo if you invest it for 10 years in an account that pays 20% interest compounded annually. That is, at the end end of each year your interest will be added to your account and invested at 20%. What will your account be worth at the end of 10 years...
*August 28, 2006*

**Math**

A goblin miner earns 1 cent the first day, 2 cents the second day, 4 cents the third day, 8 cents the fourth day. How much will the miner earn in 30 days? Ok--I know to double the answer each time until 30--which would be:5,368,709.12 Is there an equation to make this easier? ...
*August 21, 2006*

**Math**

Fay's rubber ball bounces exactly half the height from which it is dropped. She drops the ball from the top of a building that is 64 meters tall. How high will the ball bounce on its eighth bounce. Could someone explain this? Thank you! Natalie 1/2 of 64= 32. 32 feet is ...
*August 16, 2006*

**chem question**

This is on a practise exam I have and I cant get part of it, I don't know if it is not only due to my not understanding but to the fact that the first two parts might be wrong. Thanks for your help if you can. Heres the question: A coffee-cup calorimeter normally consists ...
*June 20, 2006*

**Physics for exam**

I can't get this question and its been driving me crazy. I need to know how to do this for my exam. Any help would be appreciated. A golfer is practising his/her swing at a distance of 150m from a house. On the way back to the ground, 5.00 seconds after being hit, the ball...
*June 19, 2006*

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