Friday

April 29, 2016
Number of results: 16,323

**Math**

Using only addition and subtraction, without changing the order of the digits, and having just three operations, form an equation out of 123456789 that equals 100.
*October 14, 2008 by Jake*

**general science**

This gas is principally shipped and used in gaseous form for excimer lasers, light bulbs, window insulation, ion propulsion, medical applications and laboratory R & D.
*January 29, 2009 by Anna*

**math (reiny) got an ans but would like work it pl**

Given that g(x)= 2x+1/5 and f(x)=x+4 Calculate the value of g(-2) 2(-2)+1/5= -3/5 Is this right?? How do i write an expression for gf(x) in the simpliest form?? And how do i find inverse functions such as g`1(x)?
*July 1, 2009 by Maxine*

**Algebra**

I had to write the standard form of the equation for the circle consisting of the endpoints (0,0), (6,8). I got (x-3)^2+(y-4)^2=15. But my book said the fifteen should be a twenty five. How would they have gotten 25? Thank you.
*September 30, 2009 by Therese*

**Civics**

What have presidents justified under the principles of "immediate needs of the nation" and "a mandate from the people?" Would the answer be: It has shaped the office of the presidency into its modern form.
*October 14, 2009 by Jennifer*

**Math**

Write an equation in standard form for the line whose slope is undefined that passes thru (5,-3) Please help me solve, my answer is 5x-3y=0... It was marked wrong and i can not seem to figure it out.
*November 30, 2009 by Gaby*

**math**

Can someone help me plwease with this problem????? I need to find an equation for the given pair of points and express my answer in x=a,y=b, or y=mx+b form. Please explain it simply as I am really struggling with this. (-1,-1) and (6,6). Thank you so much for your help!!!!!
*September 1, 2010 by barb*

**spanish**

Autoprueba WB P-14 | Presentaciones Complete the following conversation with the appropriate form of the verb ser. 1. Me llamo Pilar. ¿Quién tu 2.Encantada. ¿De dónde uds 3. Y éste (this) mi amigo, Carlos.
*September 10, 2010 by Christopher*

**spanish**

Autoprueba WB P-14 | Presentaciones Complete the following conversation with the appropriate form of the verb ser. 1. Me llamo Pilar. ¿Quién tu 2.Encantada. ¿De dónde uds 3. Y éste (this) mi amigo, Carlos
*September 10, 2010 by Christopher*

**Chemistery**

How much heat is contained in 4 liter of liquid methanol (CH2OH) when it is completely combusted (excess oxygen) to form carbon dioxide and water. the density of metanol is 0.7918 g/ml.
*October 30, 2010 by Lin*

**Physics**

Derive an expression for the gain Vout/Vin. Express your answer in the form of A+jB. A basic non inverting operational amplifier with a capacitor connected in series with the resistor at the bottom.
*March 13, 2011 by John*

** literature**

What are the importance of soldiers home between 1865 to present. Can any one give me some points in the form introduction, 3 body paragraph and conclusion for this essay and i really need help in it.
*April 1, 2011 by mas*

**chemistry**

Identify the two important classes of catalysts. Analyze the chemical reactions that take place when a biological catalyst combines with a reactant (substrate) to form an unstable intermediate
*June 25, 2011 by mema*

**social studies 9 **

in point form, summarize Champlain's reasons for exploring Canada. what were your Criteria for determining whether something was a success or failure?? I REALLY NEED HELP I DON'T UNDERSTAND THIS QUESTION
*January 1, 2012 by amy *

**Chemistry-Stoichiometry**

A 1.146g mixture of the solid salts NaS)4 and PB(NO3)2 forms an aqueous solution with the precipitation of PbSO4. How would I write the molecular form of the equation for the reaction?
*March 1, 2012 by Edward*

**pre-cal**

Can someone please show me how to find an equation for the line with the given properties. Parellel to the lines 3x-y= -3; containing the point (0,0) y= (then type your answer in slope intercept form)
*October 13, 2012 by ladybug*

**physics**

State only Gauss law in integral form.Use it to find out electric field due to an isolated homogeneous sphere of charges at an outside point.
*February 10, 2013 by mania*

**Math algebra**

Let N be the sum of all positive integers q of the form q=p^k with prime p, such that for at least four different integer values of x from 1 to q, x^3−3x≡123(modq). What are the last 3 digits of N?
*May 11, 2013 by Bob*

**english**

Choose the answer that displays the correct spelling of the plural form of the words in parentheses. Ancient (Roman) used (goose) as (guard) to warn of (enemy) approaching the camp.
*July 5, 2013 by alex*

**english **

Instructions in procedural texts should appear in the form of __________. a. descriptive phrases with adjectives b. commands with active verbs c. questions and answers d. complex sentences and paragraphs
*July 30, 2013 by laura_chavez*

**MATH**

I missed these problems on my test and I want to see how you would do them the correct way! 1. Write an equation in slope intercept form that is perpendicular to the following table and goes through the point (2,-3) X Y ------ 3 5 5 6 7 7
*December 15, 2013 by Anonymous*

**Ms sue**

For that wedding invitation I need to add a little more to number 3. Like I don't understand what it means comment on how the form and content of each passage are related to the various social situations
*January 22, 2014 by Mohammad*

**Personal Dimensions of Education**

Which is the correct form of the verb provided to correctly complete the sentence. Some of the references ______ to have been lost in translation. 1) seem 2) seems
*February 16, 2014 by ACE*

**Physics!**

Consider someone in a rotating space habitat. The outward force felt by the person A.has no reaction counterpart B.is an interaction with Earth C.is a form of gravity D.is real in the traditional sense
*March 19, 2014 by Anonymous*

**Pre-Calculus**

Two polynomials P and D are given. Use either synthetic or long division to divide P(x) by D(x),and express the quotient P(x)/D(x) in the form P(x)D(x) = Q(x)+ R(x)D(x) . P(x) = 6x4 − 3x3 + 29x2, D(x) = 3x2 + 13
*September 14, 2014 by Jose*

**Add maths form 4**

one of the roots of the equation x^2 - 2qx + 2q +4 = 0 is three times the other root, determine the value q. The answer is 4 and -4/3. Could anyone pls show me the step? Thx in advance
*January 23, 2015 by Anonymous*

**science**

when a molecule of water vapro in the air come into contact with a cold can of soft drink, they lose energy, slow down, and form a liquid due to a decrease in what?
*February 11, 2015 by sarah*

**Please Help, I REALLY need it btw-science**

1. which of the following is not a method by which minerals form? a) crystallization b) decrystallization c) water evaporation from a solution d) cooling of magma or lava (more will be listed)
*April 24, 2015 by Destiny*

**math**

a piece of paper in the shape of sector of circle is rolled up to form a right circular cone. what is the measure of the angle theta if its height is twelve centimeter and radius is 5 cms
*October 16, 2015 by tivs*

**geography..please check my answers!!!**

which pair of basic questions guides geographers in their work? where are things located? and Why are they there? **** What is the climate? and Why was it changed? When did Earth form? and What is it made of? Who lived where? and When did they move?
*October 26, 2015 by lilly*

**Algebra 1**

Hudson is already 40 miles away form home on his drive back to college. He is driving 65 mi/h. Write an equation that models the total distance d traveled after h hours.
*November 17, 2015 by Jr*

**Algebra 2**

I have solved these equations but the directions require me to show work or provide an explanation and I don't know how.Here are the questions: Write each of the following in exponential form: 1) log3 x = 9 3^9= x 2) log2 8 = x 8= 2^x 3) ln x = 2 e^2 = x 4) log x = 5 10^5= x
*December 2, 2015 by Trudy*

**maths**

a fresh cup is in the form of a right circular one of base radius 7cm abd height 24cm .find the area of the sheet required to 10 such cats.
*February 12, 2016 by annu*

**german**

1. Fill in the correct comparative form: Fußball ist ______ Golf. (interessant) A mehr interessanter als B interessanter als C mehr interessant als D interessant als is it C? 3. Fill in the correct comparative form: Der Film ist ______ das Buch. (schlecht) A mehr schlecht als ...
*June 24, 2012 by anon*

**chemistry**

Nitrogen gas, N2, is usually a very inert gas and thus, is often employed in dry boxes. However, it would be a poor choice for use in a dry cell with which of the following substances? A) uranium metal B) Cu/Sn alloys C) Li metals D) Ca metals E) none of these can anyone help ...
*April 21, 2007 by blobface*

**AP CHEM**

I'm currently working on a lab in which I have to make the solution boil at 245 degrees F. The solution will be a mix of ethylene glycol and I have to caluculate the volumes of water and solute needed to make the solution. here's my work so far. X= mL C2H4(OH)2 175mL-X=mL H20 ...
*February 10, 2008 by Jonathan*

**Intro and conclusion**

Hi! I wrote in here a few days ago about my thesis. I was wondering if I could get some feedback on my intro and conclusion. I think Im just about done with my essay, with the exception of these two portions. Thanks! Intro: The riddles in A Feast of Creatures historically ...
*February 27, 2007 by michelle*

**Chemistry**

Magnesium burns in air to produce magnesium oxide MgO and magnesium nitride Mg3N2. Magnesium nitride reacts with water to give ammonia. What volume of ammonia gas at 24 degrees C and 753 mmHg will be produced from 4.56 g of magnesium nitride. P= 753 mmHg (1 atm/ 760mmHg)= .991...
*October 23, 2007 by Lauren*

**Civics**

If all counties in Florida had used the same procedures for recounting votes in the 2000 presidential election, then how might that have affected the outcome of Bush v. Gore? A. The ruling may have changed because the procedure that most of the counties used was ...
*May 30, 2015 by Maria*

**literature**

Your strategy meeting with the project managers was very efficient. They have asked if you would be able to take part in the creation of the presentation itself. In working with the head project manager, you decide that you will create the first portion of this presentation ...
*March 13, 2009 by donna*

**chem**

which one of the following statements about sulfuric acid is correct? A. sulfuric acid is a known muriatic acid B. sulfuric acid is a strong oxidizing agent C. sulfuric acid has little effect on metals D. sulfuric acid is dangerous to living organisms B and D are both correct...
*August 5, 2005 by alf*

**physics **

Because a concave lens cannot form a real image of a real object, it is difficult to measure its focal length precisely. One method uses a second, convex, lens to produce a virtual object for the concave lens. Under the proper conditions, the concave lens will form a real ...
*February 14, 2015 by Ted*

**Finance**

Evans Technology has the following capital structure. Debt ............................................ 40% Common equity .......................... 60 The aftertax cost of debt is 6 percent, and the cost of common equity (in the form of retained earnings) is 13 percent. a)...
*November 16, 2015 by Albert*

**chemistry**

3CuCl2 *2H2O + 2Al = 3Cu + 2AlCl3 + 6H2O Determine the number of grams that should have been produced when 1.25g of copper (2) chloride dehydrate reacts with excess aluminum so i'm not really sure how you're supposed to calculate the number of grams with hydrates?? MCuCl2= 63....
*November 27, 2014 by julie*

**Chemistry**

Barium carbonate and nitric acid reacts in a double displacement reaction. One of products also dissociates and evolves carbon dioxide. Write the net ionic reaction including the proper use of phase labels for this solution run in aqueous solution. After this the following ...
*June 24, 2013 by Holly*

**Chemistry**

Can you tell me if these are right please? When 2.50g of copper reacts with oxygen the copper oxide product has a mass of 2.81g. What is the simplest formula of the copper oxide. I got Cu2O (copper (I) oxide). Aluminum and oxygen gas react to produce aluminum oxide. A.) write ...
*October 19, 2010 by Jason*

**Math -Quadratics Help!**

I have a test tomorrow with a few sample questions that are expected to be on the test that I do not know how to properly do. 1)Find the slope intercept equation of the line passing through the intersection of the lines 2x-4y=1 & 3x+4y=4 and parallel to the line 5x+7y+3=0 2)...
*March 23, 2014 by JBregz*

**english**

(1) To James, good form came above all else. (2) Therefore, on being introduced to Lady Weathers, he bowed, took her hand, and kissed it lightly. (3) Then, glancing upward at Lady Weathers's face, he saw a look of consternation. (4) Blushing with embarassment, James noticed ...
*May 15, 2013 by lola*

**History- Opinion**

For my introduction I need a quote that relates to our topic. We are against global peace which is that were pro-war. I found this one. I found this one. I was wondering if it worked. Thanks!! For as long as men and women have talked about war, they have talked about it in ...
*April 22, 2009 by Kara*

**math**

how to determine if each pair of ratios form a proportion A sweater is on sale for 52 dollars. If the original price was 78 dollars, what is the percent discount? how much candy
*October 28, 2006 by javier*

**complex numbers**

-3 + 4i in polar form in pi the magnitude is 5 from pyth theorm. Now the angle. Using i the positive real as the reference axis, the angle from it is PI/2 + arctan4/3
*November 3, 2006 by kevin*

**Math**

How do I express these in scientific notation AND Log10 form? 1) ln(8.1) 2) 32.8 x 10^-2 + 3.15 x 10^-1 3) 10^-2 x 10^4.5 4) 10^-45 5) 8^2.34 Please show some effort, and please stop posting under multiple names.
*January 21, 2007 by Carl*

**Algebra I**

Multiplying Polynomials...... Do you have a question? Use the general rule (a + b)(c + d) = ac + ad + bc + bd Form all possible products of terms in the two polynomials, and add them
*March 14, 2007 by Candace*

**math, algebra**

how can i rewrite the following inequality in the form y = mx + b f(x) > x you can't change an inequality into an equality. were you thinking something like f(x) > 1x + 0 ?? no this is how its written in my homework thats why i am confused .
*April 14, 2007 by jasmine20*

**Algebra II**

Write y=x^2+4x-1 in vertex form. y=x^2+4x-1 y=(x^2+4x+8)-1-8 y=(x+2)^2-9 This isnt one of my answer choices,what am I doing wrong? in second line: y=(x^2+4x +4 )-1 +4 (take one half of the middle coefficient, then square it) y=(x^2+4x + 4 )-1 - 4
*August 8, 2007 by Jonathan*

**music**

i know this question has been asked many times but PLEASE could anyone tell me if twinkle twinkle little star is an example of a song played in ternary form. thanks for your help
*January 29, 2008 by Anonymous*

**chemistry**

In a certain chemical reation, two reactants undergo change to form two products. Why can't you determine what type of reaction occurred from this information?
*November 25, 2008 by Bubba*

**Calculus**

Hi, I'm having trouble using implicit differentiation to determine dy/dx in the form dy/dx = f(x,y) for sin(2x+3y)=3x^3y^2+4 Do I make it sin(2x+3y)-3x^3y^2=4 then differentiate to get 2cos(2x+3y)-9x^2*2y=0 ? I'm a little lost... Any help appreciated.
*February 9, 2009 by Oli*

**Pre-Cal**

Classify the conic and write the equation in standard form: (1) 9x^2 + 9y^2 + 18x - 18y = 0 (2) 16x^2 + 16y^2 - 64x + 32y + 55 = 0 (3) 6x^2 + 2y^2 + 18x - 10y + 2 = 0
*April 21, 2009 by strate a stoodent*

**chem**

how many grams of a precipitate will form when you mix 45 ml of a 3.5M silver nitrate solution with 45 ml of a 5.4 M magnesium chloride solution i sorted the problem but have no clue how to start
*June 7, 2009 by lyne*

**math**

find an equation of the line having the given slope and containing the given point express your answer in the form x=a,y=b,ory=mx+b m=-2,(5,0) Do not understand this question.
*September 6, 2009 by vera*

**math (rounding)**

Ms sue. can you,please show me how you got that answer. here is the math problem. write in standard form. thirty-six- thousandths.
*September 28, 2009 by queeneka*

**maths**

when making a cone out of a given sector form a circle do we need to add circumfernce of the base circle to find its surface area?
*October 18, 2009 by Chirayu*

**English**

Why is this phrase considered to contain Verb Form and Verb Tense? "The ancient Egyptians have built pyramids as burial sites for their leaders."
*October 30, 2009 by chicken*

**math**

in a right-angled triangle the two sides that form the right angle are both 5 inches. calculate the length of the other side (the hypotenuse).
*January 2, 2010 by pam*

**algebra 1**

i know that the slop intercept form is y-y1=m(x-x1) i have to write an equation for a line that has a slope of 6 and contains teh point (-8,-7) even with teh formula i don't now how, HELP!!!!
*January 19, 2010 by lisa*

**algebra 1**

i know that the slop intercept form is y-y1=m(x-x1) i have to write an equation for a line that has a slope of 6 and contains teh point (-8,-7) even with teh formula i don't now how, HELP!!!!
*January 19, 2010 by lisa*

**algebra 1**

i know that the slop intercept form is y-y1=m(x-x1) i have to write an equation for a line that has a slope of 6 and contains teh point (-8,-7) even with teh formula i don't now how, HELP!!!!
*January 19, 2010 by lisa*

**algebra 1**

i know that the slop intercept form is y-y1=m(x-x1) i have to write an equation for a line that has a slope of 6 and contains teh point (-8,-7) even with teh formula i don't now how, HELP!!!!
*January 19, 2010 by lisa*

**6th Grade Grammar**

Underline the form of to do or to have in the sentence. Today, many do their best to learn about Einstein's work. Also, what does the "to do" and the "to have" mean?
*January 20, 2010 by David*

**bobpursley: math cont**

find the equation (in slope intercept form) the line passing through the points with the given coordinate (-1,-1) (-3,-3) ok slope 1 y+3=1(x-(-3) y+3=1x-3 -3 -3 y=x-6.. correct?
*February 23, 2010 by jerson*

**Chemistry**

The reaction of 1,6-hexanediamine with hexanedioic acid chloride to form nylon 6-6 is a condensation polymerization. What is the small molecule that is split off in each step of the reaction?
*February 24, 2010 by Holly*

**College Speech.**

How would you write a speech in a manuscript form. I have no idea how. Please help need to send in my rough draft saturday night
*April 8, 2010 by Karina Lugo*

**chemistry**

If 2.00L of nitrogen and 5.00L of hydrogen were allowed to react, how many liters of NH3 (g) could form? The condition of the gas collected were 745 mmHg and 22C.
*April 12, 2010 by Amanda*

**Pre-cal**

Find the vertex of y^2 + 4y + 2x +10 = 0. Use completing the square to put the equation into standard form as your first step. Could you show me how to get the vertex? Thanks
*May 6, 2010 by Randy*

**math 11**

Is it possible for a rectangle with a perimeter of 44cm to have the area of 125cm^2 ? If so, find the dimensions of the rectangle. Figure out the equation in general form.
*October 21, 2010 by riley*

**Physics homework help**

What approximate change in decibles does an observer experience form a sound source if the oberver moves to a new location that is 67% as far from the source? 23 -23 40 2.76 -2.76 1.94 -1.94 2.57 -2.57 0
*November 14, 2010 by kristina*

**Chemistry**

Given the following equation: NH3 + NH3 +O2 ¨ NO + H2O Calculate the number of grams of ammonia needed to form 40.12 moles of nitrogen monoxide.
*November 19, 2010 by peter*

**Chemistry**

Find the mass of hydrogen gas if 420.5 mL of nitrogen gas reacted to form ammonia at STP according to the equation: 3H2 + N2 = 2NH3
*February 10, 2011 by Mia*

**chemistry**

Phosphoric acid is a triprotic acid with pKa's of 2.14, 6.86, and 12.4.The ionic form that predominates at pH 3.2 is?choose the corect answer (a) H3PO4 (b) H2PO4^- (c) HPO4^2- (d) PO4^3-
*February 15, 2011 by kabelo*

**math**

Find the GCF of the numbers using an appropriate method. 84 and 126 Find the prime factorization of the number, and write it in exponent form. 198
*February 23, 2011 by Anonymous*

**Chemisty**

When the gases dihydrogen sulfi and oxygen react, they form the gases sulfu dioxid and water vapor. How od you write a balanced equation for the reaction?
*March 29, 2011 by Debbie*

**chemistry**

in the chemical equation :2C2H6+7O2->4CO2+6H2O, hOW many moles of c2h6 will you need to form 2.34 mol of co2? How many moles of water will be produced?
*April 28, 2011 by kelly*

**Science**

Which pairs of substances will form a buffer when mixed in equal concentrations? A)NaOH and HCl B)NH3 and NH4+ C)H2O and NH3 D)KCl and NaCl E)HF and F-
*May 28, 2011 by Pierre*

**art**

10th century copper sculpture illustrated work of artist peforming "giving tangible form to the unknown" the unknown case in this is what diety
*August 3, 2011 by Anonymous*

**Math**

After 3 years investment of 1200 compounded annually and an interest rate R will yield an amount of 1200 (1+R)Q write this polynomial in standard form
*October 30, 2011 by ASSISTANCE *

**algebra**

Write a quadratic equation in the variable x, having the given numbers as solutions. Type the equation in standard form, ax^2+bx+c=0. The soluation is 8 and is the only solution.
*November 9, 2011 by Jones*

**Math**

Solve each equation write answer on simplest form 1/4x = 6 2t = 4/7 Can you show me how to do didn't understand on class. Working on solving fraction equation. Multiply and divide
*January 23, 2012 by Chance *

**Calculus**

So I'm trying to do my homework on L'Hopital's rule. There's this one problem I have to do where I have to find the limit as x approaches negative infinity of (x^4)(e^x). How do I do this, since it's not in the form f(x)/g(x)? Thanks
*March 30, 2012 by Jasmine*

**calculus**

Evaluate the following limits after identifying the indeterminate form. Use Hospital's rule. d) lim x_0+ (xe^(2x) + 1)^(5/x) e) lim x_(Pi/2)+ (1 + sec3x)^(cot3x) Thank you!
*April 26, 2012 by Tommy*

**Calculus 1**

Evaluate the following limits after identifying the indeterminate form. Use Hospital's rule. d) lim x_0+ (xe^(2x) + 1)^(5/x) e) lim x_(Pi/2)+ (1 + sec3x)^(cot3x) Thank you!
*April 26, 2012 by Tommy*

**Math-Funtions**

1)Expand and simplify. Express each equation in standard form. a) f(x) = -2(x-1)(x+4)(x+1)(x-3) b) f(x) = (x+2)(x+1)(x+4) c) f(x) = x(x-6) 2) For each function in question 1. state the degree of the polynomial and identify the type of function
*April 27, 2012 by sandra*

**Math-Functions**

1)Expand and simplify. Express each equation in standard form. a) f(x) = -2(x-1)(x+4)(x+1)(x-3) b) f(x) = (x+2)(x+1)(x+4) c) f(x) = x(x-6) 2) For each function in question 1. state the degree of the polynomial and identify the type of function
*April 27, 2012 by sandra*

**Math---helpppp**

1)Expand and simplify. Express each equation in standard form. a) f(x) = -2(x-1)(x+4)(x+1)(x-3) b) f(x) = (x+2)(x+1)(x+4) c) f(x) = x(x-6) 2) For each function in question 1. state the degree of the polynomial and identify the type of function
*April 28, 2012 by sandra*

**trig**

Give the component form of the resultant vector in the following. NOTE: Answer must be typed in using the following format -- including the parentheses: (#,#). u =(10, 5) -3u=
*June 15, 2012 by Shade*

**Ap chemistry **

how many milliliters of a 0.46 M HCl solution are needed to react completely with a 6.4 g of zinc to form zinc (ii) chloride answer in mL Help please :( I was absent and dont know where to start
*September 10, 2012 by Chasm*

**English**

Write the correct singular possesive, plural form and plural possessive for each word: Witness Attorney Agency Child Notary Public
*September 25, 2012 by Stacey*

**chemistry**

decomposition of water to form elemental Hydrogen and Oxygen gas. What will be the balanced chemical equation, type of reaction and the driving force of the reaction?
*October 3, 2012 by shay*

**chem**

why will Na2CO3 + AgNO3 create a percipitate? I thought that one of the compounds has to be insoluble for it to form a percipitate? but according to the solubility rules they both are soluble
*October 28, 2012 by rebekah*

**Physics**

A street lamp weighs 160 N. It is supportedequally by two wires that form an angle of 119 with each other. What is the tension of each of these wires? Answer in units of N
*November 12, 2012 by Sarah*