Tuesday

October 21, 2014

October 21, 2014

Number of results: 13,780

**English**

A discussion board in an online course can be another form of: A. communication. B. assessment. C. objective test. D. free expression. is it A Explain, discuss, analyze, state, and evaluate are examples of __________ words in an essay-type exam. A. key. B. directive. C. ...
*March 19, 2013 by Amy*

**Compters**

The major reason for the predominance of the PCI bus in the latest models of PCs is that A. the size and form factor make it easy to package. B. it's exclusively manufactured in the USA. C. the technology was released as open source. D. it uses ASSEMBLER language commands.
*December 9, 2013 by Ana*

**Personal Dimensions of Education**

Which is the correct form of the verb provided to correctly complete the sentence. A high percentage of student population in the College of Health and Behavioral Sciences _____ planning to obtain an internship in the hospital while completing their degree. 1)is 2)are
*February 16, 2014 by ACE*

**Music**

The 12 Bar Blues is a chord sequence based on chords I, IV, and V. Complete this chord pattern below: I I ? ? IV ? I I V ? ? ? Here is the form in Blues... T T T T S S T T D S T T Where the T, S, and D refer to Tonic, Subdominate, and Dominate. Thank you so much!!!!! You are ...
*September 17, 2006 by Ayesha*

**chemistry**

how does a hydrate form? Generally water adds to a metal ion to the d,s, and or p orbitals in which the metal acts as a Lewis acid. I can reword that somewhat if you haven't studied about Lewis acids.
*January 7, 2007 by daniela*

**algebra II**

Can you please help me with the these problems. 8.Write an equation in standard form of the parabola that has the same shape as the graph of f(x) = 11x^2, but which has its vertex at (2, 9). 10. Use the vertex and intercepts to sketch the graph of the quadratic function. y + 3...
*October 13, 2007 by Ashley*

**Advanced Math**

Write an equation in standard form for a line with an x-intercept of 2 and a y-intercept of 5. I cannot find any examples of how to do this problem, all of the examples that I have show how to do it with a slope and point. Any help would be great! Thanks.
*June 21, 2008 by Lucy*

**advanced math**

Hi, I am trying to solve graphing quadratic equations. One of the problems is written as -x^2= -2x-1. So if I wanted to put this equation in the proper quadratic equation form, would it be -2x-1-x^2, or -x^2+-2x-1? I'm really not sure.
*March 2, 2008 by Sharon*

**pre cal**

Given f(x)=x^4-7x^3+18x^2-22x+12 A: list all possible rational zeros B: Graph f(x) C: Find all zeros D: show f(x) in factured form thanks I can't figure it out. Can skip B... thanks
*March 12, 2008 by Deb*

**chemistry**

In the extraction of an organic compound from a dilute aqueous solution, will the organic solvent form the uppoer or lower layer when each of the following solvent is used? a. chloroform b. cyclohexane c. heptane d. dichloromethane
*September 23, 2008 by Poole*

**BIOLOGY**

Table Sugar can react with water to form 2 other compounds, glucose & fructose. But, when you add sugar to a glass of water the reaction is very slow - WHY? What would it need to speed it up?
*December 11, 2008 by JOHN*

**Chemistry**

I recently did an experiment on Aldol Condensation, by reacting Benzaldehyde with Acetone to form Dibenzalacetone. The proposed stoichiometric ratio of Benzaldehyde:Acetone is 2:1. What would be the implications if either of the reactants is in excess?
*February 12, 2010 by Alan*

**MATH**

a fraction with a denominater in the thousands will always have a decimal form with more decimal places than a fraction with a single-digit denominator. How would I determine if this statement is true or fals?
*April 14, 2010 by DEBBIE*

**Chemistry**

If 8.00 g of ammonuim nitrate is dissolved in 1000 ml of water for use as a plant fertilizer, the water decreases in temperature form 21.00C to 20.39 C. Determine the molar heat of solution of ammonium nitrate
*May 11, 2010 by Nicole*

**math**

cory drops a bouncing ball form a height of 50 ft and it rebounds to 90% of its previous height.find the total distance the ball will have travelled when it hits the ground for the fifth time
*May 12, 2010 by Dennis*

**Math**

In a right triangle I need to find the length of the missing side. If.. a = ? b = 1 c = sqrt(5) I would know what to do if the square root wasn't there or if it were a perfect square but it's not, please help... (P.S. if I need to I have to keep it in radical form)
*June 10, 2010 by Punkie*

**math**

A department contains 12 men and 17 women. How many ways are there to form a committee with 6 members if it must have strictly more women than men? It is strongly recommended that you do this on paper! how do i solve this in the calculator?
*October 10, 2010 by marissa*

**engineering mathematic**

give that z = f(x,y). use partial derivatives to find δz/δx and δz/δy for xe^xz + z(xy+1)^3-sin x cos^2y=xy/z present your final answer in the simplest form.. please solve this problem....tq
*March 15, 2011 by waklu*

**business**

plz hurry, call fot help. nike product lines nike marjor accomplishments of the past few years competitive strategies plz give the point form.
*April 1, 2011 by invy*

**history**

Wall paintings from Etruscan tombs depict a society that was seemingly A. sexually open. B. segregated with respect to gender. C. austere and sexually repressed. D. simple and didn't depict the human form.
*April 5, 2011 by Anonymous*

**Math(can you just check my answer please)**

Lines x and y intersect to form angles 1,2,3, and 4. The measure of angle 3 is (3x - 9) and angle 4 is 111 degrees. Can you help me make a equation I think the equation is 3x-9 + 11 = 180 is this correct
*April 20, 2011 by Sofie*

**English**

Hello. I wanted to ask if it is possible to use the progressive form of "expect" in the following structure: "he is expecting his brother to arrive before Friday" or is it "he expects his brother to arrive"? Thank you very much for your help.
*May 13, 2011 by Ilma*

**Math**

Factor the polynomial as the product of factors that are irreducible over the real numbers. Then write the polynomial in completely factored form involving complex nonreal or imaginary numbers. x^4 + 20x^2 -44=0
*January 31, 2012 by Chelsea*

**english**

Hi, I have to compare the story Young Goodman Brown to some modern day song or movie or television show (some form of entertainment). Do you have any ideas I could use?
*February 22, 2012 by jon*

**geometry**

f equilateral triangle JKL is cut by three lines as shown above to form four equilateral triangles of equal area, what is the length of a side of one of the smaller triangles?
*March 29, 2012 by Anonymous*

**Rate measure**

A balloon in the form of a right cone surmiunted by a hemispere,having a diameter equal to height of the cone,is being inflated.how fast is its volume changing w.r.t its total height 'h' when h
*July 1, 2012 by Abhi*

**Chemistry**

Write a balanced equation for the combustion of gaseous ethane (C2H6) a minority component of natural gas, in which it combines with gaseous oxygen to form gaseous carbon dioxide and gaseous water.
*November 6, 2012 by Christine*

**Physics **

Electromagnetic waves can form standing waves. In a standing wave pattern formed from microwaves, the distance between a node and an adjacent antinode is 0.63 cm. What is the microwave frequency? any help is much appreciated
*November 23, 2012 by Alex*

**Physics**

A wire of thickness d = 5 mm is tightly wound 200 times around a cylindrical core to form a solenoid. A current I = 0.1 A is sent through the wire. What is the magnetic field on the axis of the solenoid?
*March 5, 2013 by April*

**organic chemistry**

Did a grignard experiment where we were supposed to form triphenylmethanol but something went wrong. When we heated up the mixture with the petroleum ether, it didn't solidify, it turned dark and oily. What went wrong?
*March 25, 2013 by emily*

**math**

The lower leg of a right triangle is 8 cm in length. Calculate the other two knowing that the sides of the triangle form an arithmetic sequence. please give me step by step answers thanks
*June 3, 2013 by saraah*

**algebra**

Can you explain to me how I have the answer put how do I find out how to find the right answer the question is what is an equation of the line in slope intercept form answers are y=2 x-2, y=-2 x-2, y=-2 x+2, y=2 x+2 want to know how to do them. Got to draw a picture
*March 4, 2014 by snow*

**English**

Identify the part of speech or the form of speech in the underlines portion of the next sentence. Sleeping is my favorite hobby. A. Helping Verb B. Gerund C. Being Verb D. Infinitive I think it is B..
*April 6, 2014 by Angela*

**Math**

Tim deposits $10 every month into a retirement account which averages 18% interest compounded monthly. How much will be in this account after 45 years? (The number of years form age 20 to 65))
*April 17, 2014 by Mai*

**physics**

a great amount of water vapor changes phase to become liquid water droplets in the clouds that form a thunder storm. Does this phase change release or absorb energy?
*April 23, 2014 by lou*

**math**

volume is determined by the following formula Vs*3 represent the volume of the cube above in expanded form right side 3cm Evaluate to find the voume of the cube show work
*April 24, 2014 by Mia*

**pre cal**

Write a polynomial function of minimum degree with real coefficients whose zeros include those listed. Write the polynomial in standard form. 3, -13, and 5 + 4i Urgently need help
*June 29, 2014 by Jorgeeee*

**Physics**

in a compressed spring, energy is in the form of (a) kinetic energy (b) potential energy (c) chemical energy (d) sound energy
*August 18, 2010 by Anonymous*

**Science**

Which one of these is a form of stored energy? A. Heat energy B. Light energy C. Electrical energy D. Chemical Energy D?
*April 2, 2012 by Rezu*

**chemistry**

Please judge my answer: Question: 24 mL of 0.39 mol/L acetic acid is titrated with a standardized 0.33 mol/L KOH solution. Calculate the pH of the solution after 17 mL of the KOH solution has been added. Assume the Ka of acetic acid is 1.8 x 10-5. Answer: The equation for this...
*April 15, 2008 by Abigail*

**Calculus**

Imagine that you live on an infinitely long and straight street called Infinite Drive. The addresses on Infinite Drive are given by real numbers. Your address on the street is π while your friend Patricks is 3 and Karens is sin600 . There are two moving companies, f and g . ...
*November 21, 2011 by OwlsandOctopi*

**Chemistry**

I need to predict the acid/base reactions of sodium carbonate with HCl, CH3COOH, NH3, and NaOH. I'm stuck, when I'm writing out the ions to find the strongest acid and base, does the NaHCO3 become Na and HCO3, or N, H, and CO3? Also, would these be polyproptic? NaHCO3 ==> ...
*March 19, 2007 by Lyn*

**us history**

which of the following best describes an example of how Progressives worked? a) they worked to free businesses from unnecessary government restraint. b) they worked to make government more responsive to people. c) they allowed govenment leaders more independence from ...
*December 14, 2006 by tabby*

**chemistry**

Ammonium nitrate decomposes explosively at high temperatures to form nitrogen, oxygen, and water vapor. 2NH4NO3-->2N2+4H2O+O2. Calculate the number of grams of water formed when 25 L of N2 is produced in this reaction (assume STP)
*October 19, 2009 by Meg*

**science**

Lilian's car won't start. She is using the scientific method to determone the cause. The car won't jumpstart so the battery is not the casue of the problem. What should she do next? a) run another experiment b) form another hypothesis c) draw another conclusion d) gather more ...
*September 6, 2010 by Happy Labor Day!!!!!!!!!!!*

**Math (Pre-Calculus)**

Find an equation of the line containing the points (8,-6) and (8, -4) so far i've tried y-y1=m(x+x1) but currently cannot get the answer....T-T the answer is suppose to be x=8 plz show the work so i can study form it and do it myself the next time... thnx in advance
*October 27, 2010 by K.C*

**AP Calculus AB**

Please Help! Thank you! An observatory is to be in the form of a right circular cylinder surmounted by a hemispherical dome. If the dome costs twice as much per square foot as the cylindrical wall, what are the most economical proportions for the given volume?
*November 12, 2011 by Gary*

**Chemistry**

The following thermochemical equation is for the reaction of iron(s) with chlorine(g) to form iron(III) chloride. 2Fe(s) + 3Cl2(g) 2FeCl3(s) H = -799 kJ How many grams of Fe(s) would have to react to produce 107 kJ of energy? I am not sure how to start this.
*February 4, 2012 by Hannah*

**Chemistry**

Zinc sulfide and oxygen gas react to form oxide and sulfur dioxide. Determine the amount of ZnO that should be produced in a reaction between 46.5 g of ZnS and 13.3 g of oxygen. What is the mass of the xs reactant? Please show work
*February 15, 2012 by Christian *

**physics**

a small mass is suspended from a long thread so as to form a simple pendulum. The period . T of the oxillation depend on the thread and the acceleration. G of free fall at the place concerned so that. T=km^x,l^y,g^z.where k =2pie (1.) Find the value of x,y,z (2.) derive an ...
*October 5, 2013 by praise*

**Personal Dimensions of Education**

Which is the correct form of the verb provided to correctly complete the sentence. Either the additional resources provided or the textbook _____ the information required to respond appropriately to this weeks discussion prompt. 1)has 2)have
*February 16, 2014 by ACE*

**Physics**

Four point charges are at the corners of a square of side a as shown in the figure below. Determine the magnitude and direction of the resultant electric force on q, with ke, q, and a left in symbolic form. (Let B = 2.5q and C = 8q. Let the +x-axis be pointing to the right.) ...
*June 30, 2014 by Harley*

**chemistry**

Use chemical formulas to generate the stoichiometric factor needed to express the results of a gravimetric analysis in terms of the substance on the left if the weighting form is the substance on the right: Sought Weighted I Mg Mg2P2O7 II UO2 U3O6
*September 9, 2014 by lakshmi*

**Science/CHEM**

Part 1 Chapt 4 1. You dissolve 157.1 g of ammonium nitrate in a 250 mL volumetric flask and add water to the mark (call this solution A). You take 30 mL of solution A and place it in a 100 mL volumetric flask and add water to the mark (this is solution B). Next you take 50 mL ...
*September 28, 2008 by Kelsey*

**How far of the Taurus form Earth?**

How far of the Taurus form Earth? Answer in light year... Help me please.... The brightest star in the constellation of Taurus is Aldebaran (also known as Alpha Tau). An orange-red giant which is the thirteenth brightest star in the heavens, it was one of the four Royal Stars ...
*August 21, 2005 by chuchy*

**Chemistry**

Is there someone out there that can tell me if I answered this right or if I need to study some more? Thanks What is it that makes water such a good solvent for polar substances? Why is it called the universal solvent? Water is such a good solvent for polar substances because ...
*January 31, 2008 by Bethany*

**science**

an oxide of arsenic = 0.927g 76% arsenic and 24% oxygen calculate the mass of oxygen that combines with one mole of arsenic atoms to form the oxide of arsenic. How many moles of oxygen atoms does this mass represent? Posted by Kirsty on Tuesday, February 6, 2007 at 3:50pm. an ...
*February 6, 2007 by Kirsty*

**math**

You have two formulas to use: A = lw -->area = length times width P = 2l + 2w -->perimeter You know the perimeter, which is 200m of fencing. Let length = x Now let's solve the perimeter equation for w, using what we know: 200 = 2x + 2w 200 - 2x = 2w (200 - 2x)/2 = w 2(...
*January 17, 2007 by MathGuru*

**Biology: Evolution**

Scientists suggest that two energy sources, __________ and __________, broke the bonds in the gases in Earth's primitive atmosphere, releasing atoms to form __________. Help! I forgot my book at school! Please!
*May 18, 2008 by MW*

**Physics**

A "Bus" bar is in the form of a slab of copper 2meters long, 1cm wide, and 10 cm thick. a) What is the resistance of the bar at 0 degrees celcius? b) What potential difference is needed to push 5000 amps through the bar?
*May 16, 2010 by Tristan *

**Geometry**

I am to find "d" (the hypotenuse)in the simplest radical form of a right triangle. The two angles are 30 degrees on top and the on the bottom is 60 degrees. Of course the opposite side to the left of 60 is 90 degrees. My options are: A) 8sqrt3 B) 4 C) 8sqrt2 D) 16 I do not ...
*June 16, 2010 by bart*

**Math**

My original question: How many gallons of paint are necessary to paint the walls of a 15' by 12' room with an 8' ceiling if one gallon of paint covers 80 square feet? Your response is quite clear to me. Please write it in simple form. Thanks.
*June 13, 2011 by Garnett*

**speech/english**

this is kinda similar to last nights question We have to write an introduction, thesis, and now part of the body My topic was if I could do anything without getting in trouble, what would it be? My introduction is life is a risk itself, can you imagine how adventurous it would...
*March 31, 2009 by jerson*

**JUST HELP ME**

ok i have to write a constitution and i have everything i want on it but i need to know how to put it in constitutional form please help TAYLOR Graves Make an outline. THen in the outline organize it by function: executive legislative judicial
*January 9, 2007 by Taylor*

**Science**

I was growing some bacteria in Petri dishes that I got from wiping my hand with a q-tip. Condensation appeared directly above the bacteria when they got somewhat large. Was this H20 or something else? And why did it form?
*January 14, 2007 by Me*

**Math**

I need help with the following problem: Directions: Express each answer in simplest form in terms of the given variable. Problem: An angle has measure XΊ. Find the average of the measures of a complement and a supplement of the angle.
*August 20, 2007 by David*

**Social Studies**

What form of government does Ireland have? Is it stable? Do they have any allies? I've been surfing the web for a really long time now, searching for the answers to these questions. I'm really stuck...
*February 28, 2008 by Maddie*

**Pre-calculus-check answers**

Write the slope-intercept form of the equation of the line that passes through the point (-5,4)and has a slope of -1. Answer: y=-x-1 2)Solve the system of equations algebraically: 1/3x+1/3y=1 and 2x+2y=9 Answer: no solution
*August 23, 2008 by Lucy*

**Pre-calculus**

Write the standard form of the equation of the circle that is tangent to x= -2 and has its center at (2,-4). Answer:(x-2)^2+(y+4)^2=16 Is this correct? 2) Find the area of the region between the graph of y=x^3 and the x-axis from x=1 to x=4 Answer: 63 3/4 units Is this correct...
*September 29, 2008 by Lucy*

**Math**

Identify the graph of the equation 4x^2-25y^2=100. Then write the equation of the translated graph for T(5,-2) in general form. Might be another case of half right=all wrong. I left off that it's a hyperbola (x-h)^2/a^2 - (y-k)^2/b^2 = 1 x^2/25 - y^2/4 = 1
*April 23, 2009 by Jon*

**Math**

Identify the graph of the equation 4x^2-25y^2=100. Then write the equation of the translated graph for T(5,-2) in general form. Might be another case of half right=all wrong. I left off that it's a hyperbola (x-h)^2/a^2 - (y-k)^2/b^2 = 1 x^2/25 - y^2/4 = 1
*April 23, 2009 by Jon*

**science**

In a cd player, where is the potential energy stored? Where does does it change form? Where is the kinetic energy released? Also What happens to the mass in the leaves of a tree when the tree burns?? PLEASE ANSWER ALL OF THE QUESTIONS!!
*May 10, 2009 by Caro*

**9th. algebra**

how can I figure out the formula. example. I need to transform the following equation y = x2 + 4 - 8 into vertex form and then I need to state the coordinates of the vertex of the parabola. I forgot how to arrive at the answer
*May 29, 2009 by sc*

**anonymous**

what atoms usually form coordinate covalent bonds i couldnt find this anywhere also i just want to make sure is the electronegativity difference range for polar covalent bonds .4 - 2.1 paulings?
*June 7, 2009 by lyne*

**English 1**

Communism was the form of government used on the farm. Using communist ideals of your model redesign the administration at your school. In a labeled diagram, show the government in your school for the next ten years
*November 2, 2009 by Shelby*

**8th grade Algebra I (junior level math)**

Hello, I am currently in Unit 4-1 (Ratio, and Proportions) and I don't understand how pairs of ratios could form proportions. Could someone give me step by step instructions? Thank You
*December 1, 2009 by Jay*

**Math**

Find an equation of the line containing the given pair of points. (-5,-2) and (-3,-1). The equation of the line in slope-intercept form is y=. Here is what I came up wiyh: y=1/2x-1/2. Is this correct? I am confused on this problem. Could someone please help? Thanks.
*March 26, 2010 by B.B.*

**Spanish**

For the verb componer in the present tu form is Compone. But in the preterito it's compuso. Is the ending -puso because the verb as poner in it which is irregular? Also, would this be the case for all verbs that have endings that are irregular?
*September 12, 2010 by Amy~*

**chemistry**

.0815 moles NO are reacted with .0789moles O2 gas to form NO2 gas according to the following equation: 2NO +O2=2NO2 determine the molar amounts of NO, O2 and NO2 after complete reaction.
*September 14, 2010 by Missy*

**chemistry**

.0815 moles NO are reacted with .0789moles O2 gas to form NO2 gas according to the following equation: 2NO +O2=2NO2 determine the molar amounts of NO, O2 and NO2 after complete reaction.
*September 14, 2010 by Missy*

**chemistry**

What volume (in Liters) of oxygen must react to form 17.0L of carbon dioxide according to the following balanced equation: 2CO(g) + O2(g) --> 2CO2(g) 17.0 L CO2 x (1 moles O2/2 moles CO2) = 17.0 x (1/2) = 8.5 L did i do this problem correctly
*October 17, 2010 by christine*

**Math (Algebra 2)**

Factoring by Using a Quadratic Form Problem: x^4 + 8x^2 - 20 What I have so far: (x^2)^2 + 8(x^2) - 20 a^2 + 8a - 20 For some reason my textbook says to substitute the (x^2) with (a) as you can see in the las step. The next step after that is factoring [a^2 + 8a - 20].
*January 31, 2011 by Mike*

**Algebra and Trig**

Aldo has feet of fencing. He will use it to form three sides of a rectangular garden. The fourth side will be along a house and will not need fencing. What is the maximum area that the garden can have?
*March 10, 2011 by April*

**writing**

1. On an application form, you should write n/a next to any question that: A. doesn't apply to you B. you prefer not to answer C. you have answered on an attached sheet D. you think should not have been asked I'm stuck between A and B?
*May 17, 2011 by anthony*

**Chemistry**

320g of sulfur dioxide react with 32.0g of oxygen and excess water to form sulfuric acid (H2SO4) a. What is the limiting reagent? b. What is the theoretical yield of product? c. How many grams of excess reagent will remain?
*January 11, 2012 by Kelly*

**Algebra II-please check**

Write the polynomial in simplest form with roots 4, 5i and -5i(multiply it out so no parentheses remain (x-4)(x+5i)(x-5i)(NOT SURE ABOUT THIS ONE) (x-4)(x^2-25i^22) (x-4)(x^2+25) x^3+25x-4x^2-100 x^3-4x^2+25x-100 Is this correct
*January 16, 2012 by Graham*

**math**

Suppose the cards shown are mixed and placed facedown. Think about drawing a card and without replacement drawing a second card. Give the probability in simplest form: P(A, B) = _____ | A | | B | | B | | C | | C | | ...
*April 9, 2012 by Cheril*

**chemistry**

2H2+1O2=2H2O delta H=-136 kJ A) how many joules are released when 35.0 grams H2O form B)how many grams of hydrogen burn when 278 kJ are released. C) Draw a potential energy diagram of this reaction.
*May 7, 2012 by Bryan*

**Physics - Electromagnetism**

An inductor in the form of a solenoid contains 440 turns and is 15.8 cm in length. A uniform rate of decrease of current through the inductor of 0.421 A/s induces an emf of 175 ΅V. What is the radius of the solenoid?
*August 16, 2012 by Robert*

**Chemistry**

Could someone give me the steps to converting using the metric system scientific notation? For example, how would I convert 2.2 x 10^2 cm to km? Thanks ( I try Google but they only teach how to convert it when it not in scientific notations form)
*September 18, 2012 by Shadow*

**Evolutionary Bio**

I was wondering if someone could explain to me how two haploid mating types can form a diploid. Also could someone explain the haplodiplontic life cycle? I would very much appreciate it.
*October 30, 2012 by Ezra*

**math**

The probability of rolling an even number of a die and drawing a red marble from a bag containing 3 red marble and 5 green marbles must be expressed as a reduced fraction of the form a/b what is the value of a and b?
*October 1, 2013 by sam*

**Chemistry**

Write the balanced equation for (aq) Pb(ClO3)2 and (aq) NaI. Include phases. What mass of precipitate will form if 1.50 L of concentrated Pb(ClO3)2 is mixed with .250 L of .110 M NaI? Assume the reaction goes to completion.
*October 4, 2013 by Chelsea*

**World Geography**

a What are the major groups that blended to form the culture of this region? b What are some major sources of income in the economies of Central America and the Caribbean? c What forms of music have evolved in the region?
*December 12, 2013 by m*

**math12A TRIG pleas help**

a farmer wishes to fence a field in the form of a right triangle.If one angle of the right triangle is 43.2 degree and the hypotenuse is 200yard,find the amount of fencing needed.
*February 20, 2014 by Anonymous*

**Math**

Three digits are randomly selected without replacement from 1, 9, 9 and 6. What is the probability that the three digits form a three-digit number that is a multiple of 3?
*May 2, 2009 by Mary*

**chemistry**

Sulfur undergoes combustion to form sulfuur dioxide. If 456g of sulfur is burnt calculate the mass of sulfur dioxide produced.
*June 5, 2010 by dianna*

**Precalculus**

Consider the equation 7sin^2x - (4sin2^x)/cosx = -1 a) Put the equation in standard quadratic trig equation form. Why is it 7sin^2x - 8sinx + 1 =0?
*January 27, 2012 by Melissa*

**chemist**

If 50.0 g of benzene, C6H6, at 25.0 °C absorbs 2.71 kJ of energy in the form of heat, what is the final temperature of the benzene? The specific heat capacity of benzene is 1.72 J/g ⋅K.
*December 26, 2012 by gsdgsd*

**algebra!!!! please help me!!!!**

The smallest possible positive value of 1−[(1/w)+(1/x)+(1/y)+(1/z)] where w, x, y, z are odd positive integers, has the form a/b, where a,b are coprime positive integers. Find a+b.
*June 14, 2013 by robert*

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