Saturday

February 28, 2015

February 28, 2015

Number of results: 882

**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**

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 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**

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*

**Microsoft Excel**

The order of precedence is very important when building formulas in Excel. Which of the following formulas will produce 778 as the result? A. =(25*(27/9)+5+309)*2 B.=25*((27/9+5)+309*2) C.=25*(27/9+5)+309*2 D. =25*27/9+5+309*2 Even understanding the basics of Excel was ...
*November 26, 2014 by Kelly*

**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*

**physical science**

For questions #14 – 16, write an equation for the reaction of magnesium oxide with sodium chloride to produce magnesium chloride and sodium oxide. 14. Show the formulas of the reactants. 15. Show the formulas of the products. 16. Write the balanced the equation for this reaction
*December 20, 2014 by Maria*

**Physical Science**

For questions #14 – 17, write an equation for the reaction of magnesium oxide with sodium chloride to produce magnesium chloride and sodium oxide. 14. Show the formulas of the reactants. 15. Show the formulas of the products. 16. Write the balanced the equation for this ...
*September 13, 2014 by Amber*

**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*

**science**

How to manipulate the formulas of momentum, fore, acceleration
*September 17, 2014 by wendy*

**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*

**Math**

Chapter 27, lesson 5 problem solving: use formulas
*December 4, 2014 by Jm*

**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*

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