Sunday

August 28, 2016
Number of results: 16,700

**chemistry**

a sample of carbo (12.5g) abosorbs 888J of heat its temperature changing form 27.0 C to 127 C . Calulate specific heat of Carbon
*November 3, 2011 by payton*

**AP Chemistry **

Will a precipitate form when 100.0 mL of a 7.5 10-4 M Mg(NO3)2 is added to 100.0 mL of 5.8 10-4 M NaOH? (Hint: Ksp for Mg(OH)2 = 8.9 10-12) Give the value of Q, to support your answer.
*December 4, 2011 by Bill *

**math**

What is the largest number of groups Mr. Smith could form to distribute 60 folders, 45 pairs of scissors, and 30 rulers equally among the groups?
*December 5, 2011 by paris*

**Math**

Im not too sure how to find the x-intercept & y-intercept for a sstandard form question when it looks like this: 4x-12=0 If someone could explain this too me that would be awesome. thanks :)
*January 6, 2012 by Lily*

**goverment**

which region of the nation receives the highest percentage of its revenues form the federal goernment> a. south b. northeast c. northeast e. west
*January 29, 2012 by tdp*

**Chemistry**

If you mix 20.0 mL of 1.00 x 10-4 mol/L NaCl with 20.0 mL of 2.00 x 10-6 mol/L AgNO3 will a precipitate form ? If it does it will be AgCl, which has a Ksp of 1.80 x 10-10. i'm not quite sure how to figure this out...
*February 21, 2012 by Aria*

**Calculus**

Find the equation for a line which passes through the points (–1, 1) and (3, –7). Write the equation in slope-intercept form. Show work.
*March 10, 2012 by Brian*

**Pre-Cal**

I'm trying to put this parabola in standard form which is: (y-k)^2=4p(x-h) The equation is x=(1/12)(y-2)^2 +6 Here is what i have so far: x=(1/12)(y-2)^2 +6 -6 -6 x-6=(1/12)(y-2)^2 *12 *12 Would it be 12x-6 OR 12x-72? thanks
*April 3, 2012 by Lala*

**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. Solution:2
*April 8, 2012 by Terry*

**Geometry**

Right triangle ABC has an area of 32^3 cm^2. The measure of <A=30, and the measure of <B=90. What is the length of BC, AB, and AC? Express all answers in simplest radical form.
*April 10, 2012 by Cassie*

**Geometry**

Given that circle Q has a radius of 42, and radii line QR and line QS form an angle of 180, find the exact length of arc RS.
*April 15, 2012 by Joe*

**Algebra**

-√3, 3√3 Write a quadratic equation in the variable X having the given numbers as solutions. Type in standard form ax^2 + bx +c =0
*April 21, 2012 by Stella*

**geometry**

I'm stuck on this question please help. "Lines p and q intersect to form adjacent angles 1 and 2.If angle 1=3x+18 and angle 2=-8y-70,find the values of x and y so that p is perpendicular to q.
*August 26, 2012 by Rick*

**math grade 10 **

A cube has a volume of 1280 cubic feet. Determine the edge length of the cube as a radical in simplest form.
*September 26, 2012 by Slarlett*

**pre-cal**

find the equation of a line that is perpendicular to the line y=1/6x+7 and contains the point (-5,0) y= (Type your answer in slope intercept form)
*October 13, 2012 by ladybug*

**chemistry **

Calculate the molarity of a solution made by dissolving 12.5 grams of Na2CrO4 in enough water to form exactly 550 mL of solution.
*January 16, 2013 by Anonymous*

**chemistry **

Calculate the molarity of a solution made by dissolving 12.5 grams of Na2CrO4 in enough water to form exactly 550 mL of solution.
*January 16, 2013 by Anonymous*

**chemistry **

Calculate the molarity of a solution made by dissolving 12.5 grams of Na2CrO4 in enough water to form exactly 550 mL of solution.
*January 16, 2013 by Anonymous*

**Math (9th grade)**

Write an equation in point slope form of a line parallel to 12x-2y=6 and passes through the point (-4,-3)
*January 29, 2013 by Lydia*

**Math**

Write the expression 2/3sqrt(80)in its simplest radical form A/Bsqrt(C), where A,B, and C are all integers. Answer: A=_______, B=_______,and C=_____
*February 25, 2013 by Chandrakant*

**Chemistry**

KClO3 dissociated in H20 should form a neutral solution. The results proved to be a slightly acidic solution with a pH of 6. What happened?
*March 2, 2013 by Misha*

**Chemistry**

Calculate the molarity of a solution made by dissolving 16.0 grams of Na2CrO4 in enough water to form exactly 555 mL of solution.
*March 13, 2013 by Sam*

**Algebra II**

write a fourth degree polynomial function a leading coefficient o 1 given three of its zeros are -1, 3 and 2i, then re-write it in simplified form.
*April 5, 2013 by Piggy*

**Chemistry**

what volume of oxygen is needed to react with solid sulfur to form 6.20 L of sulfur dioxide according to the reaction S(s) + O2(g) yield SO2(g)
*May 22, 2013 by Anonymous*

**Algebra 2**

prove or disprove the following statement. Irrational numbers of the form a+√b are closed under multiplication where a and b are natural numbers
*August 29, 2013 by Moore*

**chemistry**

Consider the reaction between hydrogen and oxygen gases to form water: 2H2(g) + O2(g) ¨ 2H2O(l) Which of the following is not conserved in this reaction?
*September 30, 2013 by amanda*

**physics**

A constant force of 58.3 N, directed at 31.7 degrees form horizontal, pulls a mass of 11.9 kg horizontally a distance of 2.77 m. Calculate the work done by the force.
*October 20, 2013 by Lara*

**maths**

The scale of a map is 1:25000.Find the actual length of a road,in cm,which is measured 7.8 cm on the map.Express the answer in standard form.
*January 11, 2014 by ashley*

**math**

why is it important to find nonperfect roots in radical form to simplify the process of performing basic operation with radical expression?
*January 23, 2014 by lenore*

**Chemical Bonds**

metal cations are atoms that have a positive charge. what type of bond is a metal cation likely to form?
*January 28, 2014 by Cindy*

**Math Pre-Cal**

When I am giving the point vertex of (1,-1) and another point of (2,2) and i need to put the answere in the form f(x)=ax^2+bx+c hwo would I go about doing that?
*January 30, 2014 by Holly *

**Math**

Find an equationof the line having the given slope and containing the given point. Express your answer in the form y=B or y=mx+b M=0,(0,5) The equation is y=
*February 10, 2014 by Pam*

**Alegebra 2**

Two positive numbers differ by 2. Their reciprocals add to 3. Find the numbers. (keep your answer in simplest radical form)
*March 4, 2014 by Anonymous*

**math**

A professional baseball player has a battung average of 0.325 , express the players batting average as a fraction in simplest form.
*April 7, 2014 by anonymus*

**pre calculus **

Determine the quadratic function in vertex form (A) vertex at (-3,-10) passing through the point (2,-5) Dow do I figure it out?
*September 10, 2014 by Ayane*

**Chemistry**

Is there a reaction between Sodium Acetate and Copper (II) Nitrate. If so, what is the balanced equation for it? Also, what type of reaction is it does it form a precipitate?
*October 18, 2014 by Cj*

**Chemistry, Check 1 easy question!!! **

What type of bond will a metal cation most likely form? I think its Iconic bond
*November 5, 2014 by 1 Question!*

**physical science**

A 3Kg bar of aluminum has to be heated form 25 degreesC to 75 degreesC . how many calories are needed to achieve this temperature increase?
*November 18, 2014 by kimberly*

**math**

Jamal made a list of fractions and asked Will to find the fraction written in simplest form. Which fraction should Will choose? 1/8, 3/89, 9/18, 6/10?
*January 13, 2015 by danielle*

**math**

write a four equations in slope-intercept form of four different lines that are parallel and graph the line ?? HELP pleaseee!! thank you
*March 13, 2015 by may*

**statistics**

A group of seven mountain climbers wishes to form a mountain climbing team of five.how many different teams could be formed?
*April 15, 2015 by kgahliso*

**ELA/GUM help quick :(**

What is the written form of the number 98? The grocery bill came to 98 dollars and thirty cents. A. ninety eight B. ninety-eight
*June 10, 2015 by flaca*

**Algebra **

Think we have it but want to make sure Write the standard form of the equation of each line using integers. 1. Y=-8/5x-4 Answer 8x+5y=-20 2. 4y=12+3x Answer -3x+4y=12 Thanks
*November 15, 2015 by Mom*

**algebra**

Write an expression in simplest form that represents the perimeter of the polygon. the measure of the sides are 3x, x + 10, 2x + 2, and 5x. Would the simplified expression be 11x + 12?
*December 15, 2015 by sal*

**Math**

A student has 60 square tiles each of which has a side of 16cm. He arranges them to form a larger rectangle of length 240cm. What is the breadth of the rectangle?
*January 25, 2016 by Moses*

**Algebra **

Express in mathematical form using two variables(x,y) the sum of the numerator and the denominator of a fraction is greater by 1 than thrice the numerator
*February 5, 2016 by XYZ *

**science**

You burn 6 grams of carbon in plenty of air: C ( s) + O2 ( g) = CO2 ( g) a What volume of gas will form (at rtp)? b What volume of oxygen will be used up?
*February 19, 2016 by Maya*

**Chemistry**

2. Does a precipitate of silver chloride form when 200.0 mL of 1.0 x 10-4 M AgNO3 (aq) and 900.0 mL of 1.0 x 10-6 M KCl (aq) are mixed at 25oC?[ Ksp AgCl @ 25oC = 1.6 x 10-10]
*February 25, 2016 by kevin*

**Math**

A group meeting is attended by 14 delegates. 9 of the delegates are from Atlantis and 5 of the delegates are from Zedonia. (a) In how many ways can the group choose 6 of the 14 delegates to form a negotiation panel? Show work. (b) In how many ways can the group choose 6 of the...
*March 8, 2014 by Shelly*

**business law**

what does LLC means. I know the full form of it. I want to know your definition in simple english ( english is my 2nd language). I read the internet, i still dont understand it. This seems like a simple definition: "Business owners form a Limited Liability Company (LLC) to ...
*April 27, 2007 by praveen*

**Chemistry**

1. What will happen if I add water to a FeSCN+2 solution? FeSCN+2(aq) + H2O(l) <--> ???? 2. Will the equilibrium shift to the left or right? The FeCNS++ is red colored. I think adding water will simply dilute the red color. Won't it react in any way? Small highly charged...
*May 1, 2007 by Fiona*

**chemistry**

a student dissolves 0.625 g of pure benzoic acid in distilled water and titrated the resulting solution to the equivalence point using 40.8 mL of the standardized NaOH solution from Part a, assuming that benzoic acid has only one ionizable hydrogen, answer the following: ...
*November 4, 2011 by Anonymous*

**Chem Lab**

Am I right? Classify the following properties of sodium metal as physical or chemical: •Silver metallic color—physical property •Turns gray in air—physical property •Melts at 98º C-melting point is physical property •Reacts explosively with chlorine gas—chemical property ...
*April 23, 2010 by Help1001*

**The Kite Runner Critical Lens essay help**

I have to write a critical lens essay using 3 literary elements from the book to prove the following quote true "Only a wise man knows this truth; the only way to help yourself is to help others" I think i am going to use Conflict and Resolution, but i don't no what other ...
*September 13, 2008 by Anonymous*

**math problem**

I'm trying to get a handle on what square roots are (I think thats what they are called). Here is an example. 4(almost like a division sign but it is more like a check mark)3. I don't understand what it is, its a square root? and How do I deal with these things? A square root ...
*July 19, 2007 by Scott*

**Writing Skills**

Which of the following groups of words is a sentence fragment? A. when we stopped by the garden. B. Stop by the garden. C. We stopped; she didn't. D. stopping by the garden, we saw that the flowers were in bloom A sentence fragment doesn't express a complete thought. Let's ...
*August 29, 2005 by Karin*

**physics**

Wiley Coyote (Carnivouous hungribilous) is chasing the roadrunner (Speediburd cant- catchmi) yet again. While running down the road, they come to a deep gorge, 22 m straight across and 101 m deep. The roadrun- ner launches itself across the gorge at a launch angle of 20◦...
*September 2, 2011 by squires*

**English**

Thank you very much for your corrections. These are the very last sentences of the day.I need to rephrase a few sentences, too. Thank you very much in advance. 1.Can you say “the aristocracy grew in importance/lost importance”? 2.First the serpent slithered forward, then ...
*April 10, 2010 by Franco*

**Energy**

Without energy we can't do work cuz we can't apply ne force on an object. Gravity, itself a force, when, say, pulls a ball down to the gorund it actually does work. Now for tht force, where does it get the energy from or what type of energy does it have? If u have a book ...
*June 20, 2005 by Mike*

**Chemistry**

Sulfur trioxide gas, one of the causes of acid rain, is produced in the upper atmosphere when oxygen reacts with sulfur dioxide gas in the reaction shown below: 2SO2(g) + O2(g) <--> 2SO3(g) deltaH0 = -197kJ The gases are placed in a reaction vessel and allowed to come to...
*April 6, 2012 by Abbagail*

**Environmental Science**

#54. In two or three well-developed paragraphs, define and list two characteristics of each of the following: coastal wetlands, coral reefs, and oceans. I'm not sure what it means by defining and listing two characteristics. here's my answer: Coastal wetlands are coastal land ...
*February 24, 2010 by y912f*

**Physics of Modern Technology**

1) In a conventional explosion, when each molecule of high explosive chemically reacts, it produces about 4 x 10-18 J (joules) of energy. If each molecule of high explosive weighs as much as a single uranium 235 atom, and each uranium atom releases about 4 x 10-11 J in a ...
*September 24, 2014 by Anonymous*

**Physics of Modern Technology**

1) In a conventional explosion, when each molecule of high explosive chemically reacts, it produces about 4 x 10-18 J (joules) of energy. If each molecule of high explosive weighs as much as a single uranium 235 atom, and each uranium atom releases about 4 x 10-11 J in a ...
*September 24, 2014 by Anonymous*

**economics**

A professor of economics gives multiple choice exams each semester. He curves the exams by giving the maximum possible points to the high score on the exam. For example, if a 50 question exam is worth 100 points and the top score in the class is 40, then each question is worth...
*November 24, 2009 by Felix*

**mat**

write the equation of the line passing through each of the given points with the indicated slope. give your results in slope-intercept form. (0, 5) , m = 1/4
*May 23, 2007 by Dee*

**math**

clasifying conics 4xsquared=64-64ysquared 4x^2 = 64 - 64y^2 4x^2 + 64y^2 = 64 .......divide each term by 64 (x^2)/16 + y^2 = 1 you should recognize the standard form of the equation of an ellipse.
*May 24, 2007 by krystall*

**Algebra**

Solve by using the quadratic formula. 3x^2=11x+4. Look up the formula if you don't know it already. In this case a = 3, b = -11 and c = -4. You get that by rewriting the equation in the standard form ax^2 + bx + c = 0 , where a, b, and c are constants.
*July 12, 2007 by Shaye*

**chemistry**

I asked this before, but got no response. A) If you make up a solution of 250 mL of 0.1 M TRIS in the acid form, what will be the pH? B) If you add 2 mL of 1 M NaOH to the solution in part A, what will be the pH? Thanks.
*February 3, 2008 by student*

**Biology- Carbohydrates**

Besides glycogen, what are the storage and quick-energy forms of carbohydrates found in animals and how are these form structurally related to each other?
*February 22, 2008 by Freddie G*

**calc**

The equation of the tangent line to y=f(x) at a=2 can be written in the form y=mx+b where f(x) =4sinx/4sinx+6cosx i already got 3/2 for m but i cant seem to find out how to get the value of b?
*May 9, 2008 by sonia*

**College English**

Is this a correct use of the word quintessence? Biblical hermeneutics form the quintessence of religion and faith through inquiry and reflection.
*September 18, 2008 by Eva*

**Pre-calculus-check answer please**

Write the standard form of the equation of the circle that is tangent to the line x=3 and has center at (-2,-7). Answer: (x+2)^2+(y+7)^2=49 Is this correct?
*October 13, 2008 by Lucy*

**intermediate algebra**

Write the equation of the line containing (-3,4) and perpendicular to y = 2/3x + 2. Write your answer in slope-intercept form. Not sure how to do this one. please help.
*November 6, 2008 by jennifer*

**intermediate algebra**

Write the equation of the line containing (-3,4) and perpendicular to y = 2/3x + 2. Write your answer in slope-intercept form. Not sure how to do this one. please help.
*November 7, 2008 by jennifer*

**intermediate algebra**

Write the equation of the line containing (-3,4) and perpendicular to y = 2/3x + 2. Write your answer in slope-intercept form. Not sure how to do this one. please help.
*November 7, 2008 by jennifer*

**physics**

A potential energy function for a two-dimensional force is of the form U = 3 x2y - 6 x. Find the force that acts at the point (x, y). (Use x and y as appropriate.)
*February 24, 2009 by Jessi*

**Nizwa**

What is dry ice? How do you convert it to its original form? Mention the name of the process involved. What happens to the energy of the matter during this process?
*October 25, 2010 by salim*

**Math**

How do I transform this into simple radical form... I have no idea how to do this could you please tell me the logic behind how you do this and step by step thanks (5^(1/2)-3^(1/2))^2 thanks again
*May 28, 2009 by Jake*

**Science**

When 1 gram of liquid water at 0 degrees Celsius freezes to form ice, how many total calories of heat are lost by the water and how do you know? a. 1 b. 0.5 c. 80 d. 540
*June 15, 2009 by Angie*

**mega urgently important maths**

the functions f and g are defined by f(x)=2/(x+1), x>0 g(x)=1-x^2, xER a)find value of fg(x)giving your answer in the simplest form. b) find f^-1(x) c) solve f(x)= f^-1(x)
*September 28, 2009 by ???*

**PHYSICS**

A potential energy function for a two-dimensional force is of the form U = 2.46x3 y - 5.05x (which has units of J). Calculate the force that acts at the point (1.26 m,1.18 m).
*September 29, 2009 by Luke*

**Algebra**

How do you change an equation to standard form (Ax+By=C) when given the slope and a point on the line? Does A,B, or C represent anything singificant like slope or x or y intercept?
*October 6, 2009 by Rylie*

**Algebra**

I have to find the vertex, axis of symmetry, and x intercepts of x^2-x+(5/4). I put it in standard form as -(x+-.5)^2+1.5. Thus, the vertex would be .5, 1.5. But the book's answer is 1/2, 1. How did they get this?
*November 8, 2009 by Erin*

**Math**

I need help in finding the vertex of a parabola using an equation in this form: Ax^2 + Bx+C I have a test on this tomorrow. For example: 3x^2 +1x - 2 How would I find the vertex in this?
*December 8, 2009 by Clair*

**algebra 1**

write an eaguation in slop-intercept form of the line that passes through the given point and is parallel to the graph of the given equation. 8.)2,-2;y=-x-2
*December 10, 2009 by Kayla*

**chemical equations**

5C(s) + 2SO2(g) > CS2(l) + 4CO(g) How many moles of carbon monoxide form at the same time that 0.246 mol CS2 forms?
*February 7, 2010 by Tristan*

**math**

i'm a poet... i dont know math!!! Write 3 X 10^7 km^3 , the total volume of the continental Antarctica ice sheet, in standard form. would it be 30000000000 ?
*February 21, 2010 by percy bysshe shelley*

**Math Trig**

Find the Cartesian form of the parametric equation. x = (2a)(cot T) y = (2a)(sin^2 T) how? lol here's what i got y = (sin^2 T) y = (2a)y^2 y = 2a then? do the same for X? i'm stuck there
*May 31, 2010 by kyu*

**Math/Calculus**

I need to know how to graph this equation to form a straight line: x = 1/2at^2 I would graph x versus t^2 but is that correct? Thank you very much!
*July 2, 2010 by Warren*

**computers**

an introduction to programming and visual basic 2008 page 39 programming challenges rules form design and flowchart for #3 sales tax. how do i do this?
*August 30, 2010 by Dawn*

**physics**

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?
*November 12, 2010 by Amber*

**5th grade math**

Form a equivalent problem for 4 1/2 divided by 1/2 by doubling both the dividend and divisor. Then find the quiotent. Would that be 9 divided by 1 =9
*November 15, 2010 by Jill*

**math**

A circular piece of sheet metal has a diameter of 20 in. The edges are to be cut off to form a rectangle of area 160in^2. What are the dimensions of the rectangle?
*December 8, 2010 by Sabel*

**math 5th grade**

by what fraction name for 1 must 2/3 be multiplied to form a fraction with a denominator of 15? also what is the number in this sequence ...,100,10,1,...? would it be -1? thank you
*January 19, 2011 by jill*

**Chemistry**

Write and balance an equation for a reaction in which iron (Fe) and hydrochloric acid (HCL) reacto to form iron chloride (FeCl2) and hydrogen (H2)
*February 9, 2011 by Sadie*

** Electrical **

Given the following system equations: -Put them into Standard Form, and -Simplify using Cramer’s rule IS + G1 (VA + VB) – G2VB = 0 G2VB + G1 (VA – VB) = 0
*March 12, 2011 by Chris Williams*

**Algebra**

How can you tell whether a polynomial is written in factor form. Construct a trinomial whose greatest common factor is 2x^2. Am not understanding this...Please help.
*March 29, 2011 by Amy L*

**Treacher girls scholl**

A hydrocarbon is burnt completely in air to form 13.2g of carbon dioxide gas and 7.2g of water. What is the molecular formula of the hydrocarbon?
*March 28, 2011 by Esh*

**Chemistry**

In a hydrogen atom, form what energy level must an electron fall to the n=3 level to give a line at 1.28 micrometers (um) in the infrared region?
*March 28, 2011 by Kamila*

**trig**

{Given: cos(A)=\frac: sqrt{203}/{18} {Find: tan(A) Find the positive value of the above in simplest radical form.
*March 19, 2011 by bbee*