# Questions Asked onDecember 25, 2006

1. ## Math

(1 & 2) The first three points do not fall on a straight line, and there is no value of k that will make that happen. (4) To find the quadratic y = a x^2 + bx + c that passes through the first three points, solve simultaneously 1 = c 3 = 4a + 2b + c 6 = 16

2. ## Math

How do you subract the fraction 2/5 and 4/9? Form a common denominator and subtract the numerators, like this: 20/45 - 18/45 = (20-18)/45 = ? I assume you wanted 2/5 subtracted from 4/9, not the other way around. If you want 2/5 - 4/9, the sign changes.

3. ## TO ALL STUDENTS

Please remember that, even though it's holiday time and many tutors are away, this is still a website for homework questions, not riddles (see the link for riddles at the bottom of the main page), not personal questions, not nonsense, etc. Please remember

4. ## History

Hi, I would like to know if I have the right answer because I searched on the web. The question is what countries involved in World War I? What alliances existed? The countries involved in World War I was Russia, France, Italy, and Britain, Portugal,

5. ## To:Writeacher

Can you write you real name when you go to POST A NEW QUESTON IN THIS WEBSITE? Like I mean I click on POST A NEW QUESTION I put my name and the subject. I COME TO THIS WEBSITE FOR HOMEWORK HELP. WHO IS WRITEACHER? IS WRITEACHER A TEACHER? I JUST READ HER

6. ## English

What means FEEDBACK? Thank you for using the Jiskha Homework Help Forum. Here is what the Online Dictionary says: Main Entry: feedĀ·back Pronunciation: 'fEd-"bak Function: noun Date: 1920 1 : the return to the input of a part of the output of a machine,

7. ## Math

How to multiply 208 by 37? 208 x 37 = (200 + 8) x (40 - 3) = 200x40 - 200x3 + 8x40 - 8x3 = 8000 - 600 + 320 - 24 = 7400 + 320 - 20 - 4 = 7400 + 300 - 4 = 7700 - 4 = 7696 208 x37 ____ 1456 624 ---- 7696

8. ## physics

A roller coaster moves 85 m horizontally, then travels 45 m at an angle of 30.0 degrees above the horizontally. what is the displacement from its starting point? use graphical techniques. horizontal: 85 + 45 cos 30 = ? vertical: 45 sin 30 = ?

9. ## physics

A novice pilot sets a plane's controls, thinking the plane will fly at 2.50 * 2 to the 2nd power km/h to the north. if the wind blows at 75km/h toward the southeast, what will the plane's new resultant velocity be? use graphical techniques. Are you sure

10. ## SCIENCE

HOW DO YOU REMEMBER WHICH GENES ARE WHICH! What do you mean which genes are which? There are thousands of genes and it all depends on the organism.... What kind of genes? human genes? plant genes? Go to www.google.com and type in "gene mnemonic" without