1/(X^-2Y)-1(XY^-2)=____ XY (square root of 84 - square root of 5.25) I don't understand the first equation. sqrt(84)=sqrt(4*21)=sqrt(16*5.25)=4sqrt(5.25) so sqrt(84)-sqrt(5.25)= 4sqrt(5.25)-sqrt(5.25)=3sqrt(5.25)
April 13, 2007
what root goes in this blank? i can't figure it out. She wore ________sox at the beach. argyll bobby crew (none of which are roots, however; sorry) =( How about "no" (root of "nothing")? I hope this helps. Thanks for asking.
April 11, 2007
How do I complete the square: 4x^2+3y^2+8x-6y-5=0 Also, is this a ellipse or a circle? first of all arrange the terms that appear to 'belong' together 4x^2 + 8x + 3y^2 - 6y = 5 factor out the 4 from the x terms and the 3 from the y terms 4(x^2 + 2x + ??) + 3(y^2 - 2y...
April 3, 2007
science fair- clown fish
I need a topic for my science fair experiment-I'm in the 6th grade and I would like to do something w/ clown fish, but I'm not sure what my hypothesis should be, please help. We own a pet shop so have have a lot of access to salt water stuff. P.S. It can't do harm ...
January 21, 2007
What is a tree map? Thank you for using the Jiskha Homework Help Forum. Here is a definition of "tree map" as concerning languages: http://en.wikipedia.org/wiki/Language_family Family Tree of Indo-European Languages: http://www.danshort.com/ie/
January 12, 2007
what makes the use of variables diffcult to understand? what makes them difficult to understand is : Depending on which variables are used somehow they have to predict just how they vary, and what factors influence the variation this is what i got helped on from the tutors ...
January 9, 2007
How do you estimate quotents and find a overestimate or a underestimate? If you know please please let me know! I searched Google under the key words "estimate quotients" to get these possible sources: http://www.studyzone.org/testprep/math4/d/estimatingquotientl.cfm...
January 4, 2007
what was the magna carta????. help with study guide for midterm in social studies It is an written agreement signed by King John of England in 1215, limiting the powers of the King. It is one of the most important legal documents leading to the development of constitutional ...
December 16, 2006
write a meaningful sentence using the words: metallic, grand, electron Free electrons make metallic bonds, and in the world of metallurgy, these metallic bonds form the grand characteristics of metals: tensile strength, ductility, and conduction.
November 13, 2006
Write a meaningful sentence using the words: metallic grand electron. Use these terms as key words for a search. Even though this is not my area of expertise, I did. http://prola.aps.org/abstract/PR/v130/i5/p1703_1 (Broken Link Removed) http://adsabs.harvard.edu/abs/1994PhRvB...
November 13, 2006
Write a meaningful sentence using the words: covlent,atoms,sharing. You probably mean "covalent", not "cvlent". You write the meaningful sentence; we will be glad to critique it.
November 13, 2006
what is the capitol of columbia how to spell spanish numbers Thank you for using the Homework Help Forum. Since you don't say how many numbers you want, here is up to 21. céro, uno (sometimes un/una), dos, tres, cuatro, cinco, seis, siete, ocho, nueve, diez, once (11...
September 6, 2006
I have a US History project that's due... I have to make a map of North America in 1756 with: -20 major European settlements -French, Spanish, English colonizations -Native American Tribes -20 major geographical features And, I'm in really big trouble. I've never ...
September 4, 2006
Biology: Methods of Protein Chemists?
I've tried looking around, and have had trouble researching this subject. Anyone know a site where they describe the various methods used by protein chemists to engineer new medicines? I would suggest talking to a professor of pharmacology at a university. Below are a few ...
July 9, 2006