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July 28, 2014

Search: formulas

Number of results: 830

Math
When something says that I'll be tested on formulas for perimeter and area of polygons, does that mean I'll just have to know the formulas, or that I'll have to know how to use the formulas, or both?
May 25, 2009 by Angie

Adam Help
Write the formulas for silicon dioxide. Note: it says formulas SiO2 i guess is a formula but idk how to write formulas for it.
May 8, 2014 by Angela

computers
what are calculations entered into a spreadsheet called is it formulas or values i think formulas am i correct?
January 30, 2013 by tim

math
Can you describe some common formulas that you use in your life? Like maybe gas mileage formulas or distance traveled?
March 18, 2014 by SDog

chemistry
if k2O, SrO, and Al2O3 are all correct formulas, predict the formulas for the oxides of Rb, Mg, & Ga. i think the answers are Rb2O, MgO,& Ga2O3 but im not sure why
October 23, 2010 by Kim

Precalculus
I've tried many times to get the equation to balance using trig identities like half-angle formulas, power-reducing formulas, and double angle formulas, but I couldn't get the equation to equal out. I only need to work one side to make it equal to the other, like a kind of ...
December 2, 2010 by Christina

Statistics
Hi, My professor gave us the formulas for sample variance and population variance, as well as the shortcut formulas for each. However, he said that on some of the problems, we will HAVE to use the long formula, which for population variance would be: E(x-mean)^2/N Can someone ...
October 11, 2010 by Lila

chemistry
Which of the following formulas -- NO, N2O, NO2, N2O, N2O4, AND N205 -- represent the empirical and molecular formulas of the same compound?
March 23, 2010 by Jeaninne

4th grade
I like to know few Formulas in Algebra, What formulas we have use in Algebra ?
October 22, 2008 by jhon123

Algebra
What are the formulas sum of perfect cubes and difference of perfect cubes? bobpursley said to use them in one of my other posts but I don't know those formulas.
January 13, 2008 by Ashlynn

AP Chemistry
The formulas for ethanol and ammonium nitrate are C2H5OH and NH4NO3. In what respects are these formulas and compounds different? Am I supposed to say that there are different elements that make up the compounds?
September 5, 2011 by Jen

Chemistry
WHat are the structural formulas for glycerin, hexane, and ethanol. Do these structural formaulas support the solubility data obtained?? It is almost impossible to draw structural formulas on the computer. In line formulas may help. But you need to refine your question to ...
February 20, 2007 by Dave

Chemistry
What are the names of the following formulas:- [AL(CN)4]^(-1) [V(CO)4CII)^(+1) [MN(H20)3CL]^(3+) [FE(SCN)3F3]^(3-) What are formulas for the following names:- Bromotrihydroxomercurate (I)
October 12, 2010 by Julie

Chemistry
I need help with Chemistry homework.. I dont know how to write formulas..Please help me! Write the formulas for silicon dioxide.
May 8, 2014 by Angela

math
sin2x-cotx = -cotxcos2x Using the various trigonometric identities(i.e. double angle formulas, power reducing formulas, half angle formulas, quotient identities, etc.) verify the identity. I first added cotx to both sides to get sin2x = -cotxcos2x+cotx then I tried dividing ...
April 4, 2008 by sam

ha
wow,roger i think you are really smart.,thanks Ok, I'll take that as a compliment, but did you actually learn how to use the formulas? Knowing that would mean more to me. Those are some of the most basic and important formulas of physics, so it means more if you learn them. ...
September 10, 2006 by fluffy

Data Analysis
Formulas are a great way to save time and effort when using Excel… what are some ideas for formulas you could create to help you with this situation? * You wish to calculate the commission on sales. The commission is 6% on all sales that are at least 20% above cost. Really ...
July 15, 2009 by Bryan

Trignometry
An isosceles triangle has two sides of length w that make a 2á-degree angle. Write down two different formulas for the area of this triangle, in terms of w and á (Greek “alpha”). By equating the formulas, discover a relation involving sin 2á, siná, and cosá.
April 12, 2010 by Lydia

science(chem)
CH3CHClCH2Cl vs. CH2ClCHClCH3 How would I know if : -The two formulas represent different compounds which are constitutional isomers. -The two formulas represent different compounds that are not isomeric. -The two formulas represent the same compound. ~if they were isomers ...
August 31, 2007 by ~christina~

Physics help
how might life be different if static friction did not exist? give three examples and reference formulas to support your answers I have three examples but I do not understand what the questions mean by reference formulas
June 27, 2014 by Liz

Physics
how might life be different if static friction did not exist? give three examples and reference formulas to support your answers I have three examples but I do not understand what the questions mean by reference formulas
June 26, 2014 by Liz

physics
what site can i find physics formulas? http://muweb.millersville.edu/~jdooley/formulas/TOPLIST/TOPLIST.HTM
October 14, 2006 by miss sixty

Computers
What are calculations entered into a spreadsheet called? Formulas? Or Values? I'm thinking its formulas but Values talks about calculations on a spreadsheet too.
September 27, 2012 by Brittany

MATH
1.)Find the exact solution algebriacally, if possible: (PLEASE SHOW ALL STEPS) sin 2x - sin x = 0 2.) GIVEN: sin u = 3/5, 0 < u < ï/2 Find the exact values of: sin 2u, cos 2u and tan 2u using the double-angle formulas. 3.)Use the half-angle formulas to determine the ...
April 10, 2009 by MAKITA

Chemistry
Draw all the possible condensed structural formulas for the organic compounds with 6 carbon atoms that have a 4-carbon chain. [I don't know how to draw condensed structural formulas with a branch on it or how this type of structure is going to come out]
October 25, 2011 by Steph

Chemistry
Samples of three different compounds were analyzed and the masses of each element were determined. Compound Mass Mass N(g) O(g) A 5.6 3.2 B 3.5 8.0 C 1.4 4.0 If you were John Dalton and had never heard of a mole, which of the following would you think were possible sets of ...
August 29, 2011 by Davis

Physics
A track star in the long jump goes into the jump at 12 m/s and launches herself at 20 degrees above the horizontal. How long is she in the air before returning to Earth? (g= 9.81 m/s squared) I tried using some formulas but I'm using all of the wrong formulas for this question...
October 7, 2007 by ac

Chemistry
I like to write and name chemical formulas, but some formulas just confused me really bad, so I would like help getting back on track. I don't understand this. NiPO4: I know that Ni = Nickel, and PO4 = Phosphate, but how come there isn't the -3 charge on it? This is what I had...
September 20, 2010 by Anonymous

math
I don't understand how to write the formulas for unit analysis. I can do the problems, but the explanation of the formulas in my book doesn't make sense with the problems I am doing. For instance, this one: Find the unit rate: $2 for 5 cans of vegetables. I know it is $0.40 ...
December 4, 2007 by Lydia

geometry
Looking at formulas, which 2 shapes describe this relationship: the area of the 2 dimensional shape is one-fourth the surface area of the 3-demensional figure? Looking at formulas, which two figures describes this relationship: the volume of the first 3-dimensional figure is ...
October 30, 2011 by Maria

math formulas
4. Vanna has just financed the purchase of a home for $200 000. She agreed to repay the loan by making equal monthly blended payments of $3000 each at 9%/a, compounded monthly. Determine how much interest she will pay for her loan. h. How much would Vanna have saved if she had...
January 21, 2011 by stephy

TO BOB
use your answer to (b) to help calculate the mass and the velocity of the ball that's the part i don't understand am i suppose to use equal the formulas? YEs, equate the formulas to the numbers you were given. If I remember correctly, you were given momentum, and KEnergy. mv= ...
October 16, 2006 by Kim

Trigonometry
There is an arbitrary triangle with angles A, B, and C and sides of lengths a, b, and c. Angle A is opposite side a. How do I get the formulas: b * cos C + c * cos B = a c * cos A + a * cos C = b a * cos B + b * cos A = c Are these standard trig formulas? What are they called...
December 15, 2006 by mathstudent

Navigation
Thanks Damon for your help yesterday. I see now there are close similarities between the 2 formulas I sighted yesterday. I worked my problem with both formulas and received identical answers of 958.27 NM. This distance is a mile or so more than your answers and I have studied ...
January 18, 2008 by mike

Science
What are the formulas for lithium bromide? http://www.webelements.com/webelements/compounds/text/Li/Br1Li1-7550358.html where can i find the formula for cupric nitride,and magnesium chloride also. and what are the formulas for the compounds formed by Fe2+,Cl- how do you figure...
January 7, 2007 by Mark

Physics
Specifically, which of the following best expresses your view: i. Many physics concepts make a lot of sense and connect to everyday experience; but formulas are more of a problem-solving tool than a sense-making tool. ii. It really depends on the formula. Some of them make ...
March 29, 2011 by Tammy

Physics
Specifically, which of the following best expresses your view: i. Many physics concepts make a lot of sense and connect to everyday experience; but formulas are more of a problem-solving tool than a sense-making tool. ii. It really depends on the formula. Some of them make ...
March 28, 2011 by Tammy

Physics
Specifically, which of the following best expresses your view: i. Many physics concepts make a lot of sense and connect to everyday experience; but formulas are more of a problem-solving tool than a sense-making tool. ii. It really depends on the formula. Some of them make ...
March 26, 2011 by Tammy

Math
What are the formulas for 3-D figures?
June 15, 2014 by Christopher

PLEASE HELP ME WITH PHYSICS!!
A truck is traveling at 16 m/s to the north. The driver of a car, 500 m to the north and traveling south at 25 m/s, puts on the brakes and slows at 3.5 m/s2. Where do they meet? The truck has constant velocity of 16m/s. The car is 500m away, has velocity of 25m/s and ...
September 26, 2006 by Katelyn

Ion charge & formulas of ionic compunds-DrBob222
These are the other questions: I'll start from Number 1. 1. I have to write down the symbol for the following ions: a- sodium = Na b- chloride = CL c- sulfate = S d- ammonium = ? would it be NH4? e- chromium (II) = Cr f- chromium(III) = Cr 2. write the formulas for the ...
April 20, 2010 by Sara

Math
How to solve the two formulas for x+y=21 3x+4y=21
February 26, 2008 by Tyler

geometry
Why do you use 1/3 in volume formulas?
February 14, 2011 by Mick

formulas
What's the formula for the surface area of a pyramid?
June 14, 2005 by brandi

college class
What are some Readability Formulas?
September 5, 2007 by dawn

ACCOUNTING
cost,volume and profit formulas
May 23, 2010 by tony

chemistry
how do empirical and molecular formulas differ
September 30, 2010 by Anonymous

Chemistry
How do you figure out hydrate formulas?
April 23, 2011 by Will

chemistry
"empirical formulas" p 889(153e)
February 21, 2013 by rose

chem!!!!!!
empirical formulas" p 889(153e)
February 23, 2013 by rose

Com 215
Whay is a readability formulas? Try looking here: http://www.google.com/search?as_q=&hl=en&num=10&btnG=Google+Search&as_epq=readability+formulas&as_oq=&as_eq=&lr=&as_ft=i&as_filetype=&as_qdr=all&as_nlo=&as_nhi=&as_occt=title&as_dt=i&as_sitesearch=&as_rights=&safe=images
June 4, 2007 by Evon

Math
What are the double angle formulas for csc and sec?
November 27, 2007 by Alex

algebra
what are the formulas for finding perimeter and area of a triangle?
December 5, 2007 by Tabby

chem
determining hydroxide and hydrogen concentrations? what formulas ?
December 18, 2008 by Anonymous

chemistry
what is the formulas for the compounds formed by the following : Al and (NO3)1-
December 18, 2010 by BoBo

Math
Which of the flowing formulas a correct rewriting of the formula a=6b - 12? A. b= a- 12/6 B. b= a + 12/6 C. b= a/6 + 12 D. b= 6a - 12
April 13, 2011 by Leah

criminal justice
what is mean median and mode and formulas
May 5, 2011 by se

algebra
give the general formulas for the integer solutions of x^2 + y^2 = z^2. what is x,y, and z when m=18 and n=11
February 6, 2012 by luckybee

Math
How do you transform formulas? Please explain what your doing on your work. Ex. 7x=t
February 9, 2012 by Ayush

maths
can you pls tell the formulas in binomial theorem
October 1, 2013 by ether

Math- Trig
1. Determine the exact value of cos^-1 (pi/2). Give number and explanaton. 2. Determine the exact value of tan^-1(sq. root 3). with explanation. 3. Determine exact value of cos(cos^-1(19 pi)). with explanation. 4. Determine the exact value of sin(sin^-1(20 pi)). with ...
April 14, 2012 by Crystal

honors geometry
The triangle with vertices at A (-2, 2), B (-8, -1) and C (-8, -1) is reflected about the line y= 2x + 1. Express the coordinates of the reflection of A as an ordered pair. How do you set this problem up? Thank you. A neat way to check your thinking. Draw the system (triangle...
December 17, 2006 by maggie

chemistry
give the name and formulas of the compounds that rust is composed of
December 13, 2010 by jjredick

chemistry
give the name and formulas of the compounds that rust is composed of
December 13, 2010 by jjredick

Chemistry
I need the structural formulas for the organic compound 1,3,5 Trichlorocyclohexane
April 25, 2011 by Chris

math
What is the formula for finding these?? 1. 30 % of 90 2. 70 is 10 % of what? 3. 4/10 of 30 4. change 2/8 to a percent Please help me with these formulas! Thanks!
May 10, 2011 by lucy

chemistry
Draw the condensed structural formulas of ethyl alcohol
May 22, 2011 by Ivy

math
just the basic formulas for area, length, and width
November 28, 2011 by rob

algebra equation
give the general formulas for the integer solutions of x^2 + y^2 = z^2. what is x,y, and z when me=18 and n=11
February 5, 2012 by luckybee

physics
a 120kg ball moving at 18m/s strikes a wall perpendicularly and rebounds straight back at 12m/s. after the initial contact, the centre of the ball moves 0.27cm closer to the wall. Assuming uniform deceleration, show that the time of the contact is 0.00075s. How large an ...
September 30, 2007 by kale

Chemisrty
Where can i find drawing of electron dot stuctures for compounds like BR2 and HCN HCN is at the link below. http://dl.clackamas.edu/ch106-01/formulas.htm I couldn't find one for Br2 on line but here is how it will look.   .. .. :Br:Br:   .. .. That is ...
November 29, 2006 by Lance

Algebra
What are the formulas for the area of a rectangle, square, triangle, parallelogram, and trapezoid?
September 15, 2007 by I am anonymous

Chemistry
How do you know when to put roman numerals into formulas of binary compounds?
September 23, 2007 by TBW

Chemistry
Write the binary formulas for the compounds formed from the following ions: Na+, Cl-
October 25, 2007 by Danny M

Science
Will somebody please tell me the nitrogen,H20, and carbon formulas???? Thanks!
January 6, 2008 by Ginny

7th grade
Formulas for changing metric into English measurements
March 27, 2009 by Anonymous

Chemistry
Can you tell me what the empirical formulas are for C2H6O4 N2O5 Hg2Cl2 C6H12 Thank you!
May 27, 2009 by Tal

chemistry
Write formulas for the compounds that form from {\rm Rb} and each of the following polyatomic ion: {\rm NO}_{3}^{-}, {\rm SO}_{4}^{2-}, {\rm PO}_{4}^{3-}.
September 13, 2010 by Anonymous

chem
Determine the number of each type of atom in each of the following formulas. (a) Ba(OH)2(subscript) Ba 1. O 2. H 3. Ba thanks
October 12, 2010 by sara

algebra
Explain how many miles does it takes to get from home to work, with "distance Formulas?'
August 1, 2011 by Toni

organic chemistry
what are the formulas of the salts that may precipitate when the reaction mxture is cooled?
October 24, 2011 by Ivy

chem
Formulas for the covalent compounds: Diphosphorous monoxide Tetrasulfur hexaiodide
February 23, 2012 by Margearett

Chemistry PLZ HELP!!!!!
what are the names of three important nitrogen fertilizers with their formulas?
April 9, 2012 by Maci

biology
How does a glycerol mulecule differ from a carbohydrate molecule? Structeral formulas
September 18, 2012 by steph

Intermediate algebra
Formulas & advanced ratio expressions: Solving for w: S-2lw =h --------- 2w+2l
February 10, 2013 by Anonymous

Math
1. Power reducing formulas can be used to rewrite 8sin^2 xcos^2 x as 1-cos4x. True or False? 2. Find the exact value of cos15 degrees using a suitable half angle formula. square root of 2+root3 / 2? 3. Find the exact value of cos^2(pi/8) using a suitable power reducing formula...
June 3, 2013 by mysterychicken

chemistry
write the formulas and give the names of the compounds formed by the following ions a) Cr^2+ and F^- b) Ni^2+ and O^2 and c) Fe^3+ and O^2-
March 2, 2008 by john

trig
how do you use doubel-angle formulas to find sin, cos, and tan
April 17, 2010 by matt

CHEMISTRY
Hi! Where can I find a list of the molecular formulas for the elements? like hydrogen is H2 and sulfur is S8
April 23, 2010 by Sean P.

Excel
Want to create a worksheet that will help track your grades and. What formulas and/or functions might you use?
April 6, 2011 by Haley

Chemistry
I need the structural formulas for the organic compound trans 3,4,5-triethyl-2-octyene
April 25, 2011 by Chris

Chemistry
Skeletal structural formulas of pentane,2 methyl butane and 2,2 dimethyl propane
September 24, 2011 by Gift

Chemistry
Using the "octet rule" write the Lewis formulas for NF3 and NO3-.
February 22, 2012 by Chem

Chem please help
Formulas for the covalent compounds: Diphosphorous monoxide Tetrasulfur hexaiodide
February 23, 2012 by Margearett

Chemistry
Hi, I need help with something. What are the correct formulas and names of manganese and oxygen compounds.
November 26, 2012 by Melo

Geometry
Using a 30-60-90 triangle, if b = 12, find c? I can't seem to get any formulas to work for this. any help would be wonderful.
May 21, 2014 by Kylee

appliance repair
Which one of the following letters is used in formulas as the symbol for voltage? A. P B. W C. I D. E
May 22, 2014 by john

science
predict how the following pairs of atoms will combine by writing the formulas for the resultign compounds Mg and Cl
November 29, 2007 by sam

Science
Will somebody please tell me the following formulas: Nitrogen Water (H20) and carbon?? Thanks
January 6, 2008 by Ginny

chemistry
What are compounds that have the same molecular formula but different structural formulas called?
January 5, 2010 by christina

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