Tuesday

May 24, 2016
Number of results: 16,462

**Math 11th Grade**

Use Demoivre's Theorem to find the fourth roots of -16. Leave the four roots in trigonometric form. How the heck do i do this?
*April 3, 2011 by Carl*

**Calculus (pleas help!!!)**

Find the formula for a function of the form y=Asin(Bx)+C with a maximum at (0.5,0), a minimum at (1.5,−4), and no critical points between these two points.
*April 6, 2011 by Karku*

**Geology**

How did the Hawaiian Islands form geologically? How could the relative age of the islands be determined? (In other words, how would you know which island was oldest, which was youngest, etc.)?
*July 21, 2011 by Henry *

**college general chem**

If 15.0 of is dissolved in enough water to form 270 of solution, what is the molarity of the solution? How many milliliters of 4.45×10−2 contain 4.05 of solute
*October 3, 2011 by ronie*

**Pre Algebra**

I am having a problem with slopes and intercepts problems. Write each equation in slope-intercept form. Find slope and y-inercept. 3x - y = 14
*November 28, 2011 by Rosalind*

**Math**

Explain how to determine the value of x that gives a maximum for a transformed cosine function in the form y=acos(k(x-d)) + c, a>0, if the maximum for y=cosx occur at (0degrees, 1)
*December 5, 2011 by Jacob*

**chemistry**

Aluminum metal generates H2 gas when dropped into 6.00 M HCl. Calculate the mass of H2 that will form from the complete reaction of 0.365 g Al with 8.40 mL of 6.00 M HCl.
*January 26, 2012 by annie*

**algebra**

use any three of the digits 2,3,4 and 6 to form an 8 digit factor and a two didgit factor with a estimated product that is between 140 and 250
*February 18, 2012 by brittany*

**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 -sqrt3, 3sqrt3
*March 28, 2012 by Terry*

**math**

marty has saved 72 dollars he spent 8 dollars write a ratio as a fraction in simplest form to represent what portion of his saving he has f\left
*May 3, 2012 by Taylor*

**Math. Fractions**

Emily exercised from 4:05pm tob4:32 pm For what part of an hour did Emily exercise ? Write the fraction in simplest form Would it be 27/60 = 9/20
*May 17, 2012 by Marco*

**Physics**

A pot contains 243 g of water at 78°C. If this water is heated and all evaporates to form steam at 100°C, what is the change in the entropy of the H2O?
*June 21, 2012 by Alex*

**Chemistry**

calculate the molarity of a solution made by dissolving 0.750 grams of Na2SO4 in enough water to form exactly 850 mL of solution.
*October 16, 2012 by Anonymous*

**Science Help!**

How much heat is needed to cause the following irreversible reaction? 200 g of liquid H2O at 50°C is heated to form 200 g of steam at 120°C
*October 22, 2012 by LeAnna*

**algebra**

Rewrit the equation in vertex form. Name the vertex and y-intercept. y=3/5^2+30x+382 I need some help do not understand these type of problems.
*October 31, 2012 by Lee*

**algebra 2**

given the zeros,write a polynomial equation in factored form.zeros: -45,99,127,358 show all the step please.
*December 7, 2012 by lisa*

**College Algebra**

Write the equation of the circle in standard form. Find the center, radius, intercepts and graph the circle. x^2+y^2+14x+18y=-81
*January 10, 2013 by Amary*

**physics**

a particle of mass(m) attack to a string of length (r) b wave round in a circle with speep(b) fine the form of the expression for the tension the string
*February 22, 2013 by Anonymous*

**calculus**

Integral of 10 / (5x^2 - 2x^3) Do not determine the numerical values of the coefficients. Just wanted to know why when I write out the form of the partial fraction decomposition there is A/x + B/x^3 + C/ (x^2 + 4) Why isn't it just A/x^3 + B/ (x^2 + 4)?
*March 2, 2013 by Daniel*

**Algebra 1**

Write an equation in slope-intercept form of the line that passes through the given point amd is parallel to the graph of each equation* (2, -7) y=x-2
*March 13, 2013 by Summer Taylor*

**pre calculus**

Write the equation of the circle in standard form. Find the center, radius, intercepts, and graph the circle. x^2+y^2-12x-4x+36=0 How on earth do I do this?
*March 28, 2013 by sharon*

**Quantitative Reasoning ( College Freshman)**

For the quadratic function : y=-0.25(x+8)(x-6) write the function in the vertex form y=a(x-h)^2+k by completing the square. Show all work.
*April 5, 2013 by Bonni*

**Mathematics**

Let x,y,z be non-negative real numbers satisfying the condition x+y+z=1. The maximum possible value of x^3y^3+y^3z^3+z^3x^3 has the form a/b where a and b are positive, coprime integers. What is the value of a+b?
*May 27, 2013 by hope any one can help*

**Maths**

Let x,y,z be non-negative real numbers satisfying the condition x+y+z=1. The maximum possible value of x^3y^3+y^3z^3+z^3x^3 has the form ab where a and b are positive, coprime integers. What is the value of a+b?
*May 29, 2013 by ABCD*

**Please Help**

Let x,y,z be non-negative real numbers satisfying the condition x+y+z=1. The maximum possible value of x^3*y^3+y^3*z^3+z^3*x^3 has the form a/b where a and b are positive, coprime integers. What is the value of a+b?
*May 30, 2013 by Mathslover*

**differential calculus**

a bed is in a form of a circular sector. find its radius if the area of the sector is 1000 centimeter square and its perimeter is a minimum
*July 31, 2013 by len*

**science / rocks **

what step in the rock cycle creates the sediment from which sedimentary rocks form I think its erosion please see if im right or not
*November 15, 2013 by rian*

**Algebra 1 **

Write an equation in standard form of the line that passes through the given point and has the given slope m. (5,-1) m=2 I not sure about this one
*November 21, 2013 by Jynessa*

**Algebra 1**

Write an equation in standard form of the line that passes through the given point and has the given slope m. Can someone check my answers (-2,6) m=1 -1x+y=8 (-7,8) m=-3 3x+y=-13 (9,-10)m=-4 4x+y=26 (-15,-4)m=1/2 -1/2x-y=23/2
*November 21, 2013 by Jynessa*

**Math**

Please help me solve this!! I'm really struggling with this topic Write an equation in slope intercept form with a y-intercept of 1 and is parallel to the given line
*November 24, 2013 by Hannah*

**Math 117 **

Why is it important to find nonperfect roots in radical form to simplify the process of performing basic operations with radical expression?
*March 27, 2014 by stephanie*

**Chemistry**

Which clusters of orbitals would form a "octahedral" electron geometry and would also be possible within the valence shell of an atom?
*May 2, 2014 by Vic*

**biology**

A bacterial strain divides once every 30 minutes. After 90 minutes, a single bacterium can form a total of ___ bacteria
*June 9, 2014 by Anonymous*

**Pre-Calculus**

I'm kind of stuck on how to do this. Can someone help me? Thanks! Write the equation of the line with slope -2 that passes through the point (-1, -3) in slope-intercept form.
*September 14, 2014 by Robert*

**chemistry**

How many grams of Cu (s) are needed to form 6.00g Ag from a solution of AgNO3? The reaction is Cu (s)+2Ag^+(ag)--> Cu^2+(aq)+2Ag (s) the molar masses are: Ag=107.868 and Cu=63.546g
*September 14, 2014 by darya*

**Pre-Calculus**

help please in what form is the following linear equation written: 3x-2y=4 Slope-intercept Point-slope Standard Rise-run
*September 24, 2014 by Anonymous*

**Math**

I also need help with Find the component form of v if absolute value of v=2 and the angle it makes with the x-axis is 30 degrees. I cannot find a book example. help me.
*November 22, 2014 by Amber*

**Math**

the air needs to be humid up to about 18,000 ft for a hurricane to form. write an inequality to represent this altitude a of the air above the ocean
*March 9, 2015 by Angelina*

**math**

let x and y be two complementry angles. form an equation and draw its graph. find graphically measures of the other angle. if one of the angle is
*March 24, 2015 by pintu*

**Health**

________ dependence is the most common form of chemical dependence in the United States. A. Alcohol B. Tobacco C. Nicotine D. Marijuana I think its C.
*April 14, 2015 by Vaughn*

** college math**

Write each ratio or rate as a fraction in simplest form. l 1/2 to 3/4 That's One and one half to three fourths I think the answer is 2/1
*April 23, 2015 by Carrie*

**Alg 2**

If I were to graph it, the vertex would be (3,-7) so what would my other point be? Write this equation : y =4(x-3)^2 -7 in standard form . answer: y=4x^2 -24x +29 idk if this is right?
*June 12, 2015 by Jess*

**E& M physics**

Three electrons form an equilateral triangle 0.600 nm on each side. A proton is at the center of the triangle. What is the potential energy of this group of charges?
*October 2, 2015 by Master Blaster*

**Precalc**

Why the polar form(2.83,45) is written a rectangular complex number like this: 2.83*cos45 + j*(2.83*sin45) I would like some explication please. Thanks!
*December 26, 2015 by Andrei*

**Maths**

All prime numbers less than ten are arranged in descending order to form a number.Write down the number formed
*January 7, 2016 by Mariam atieno*

**MAth**

Find the smaller angle given the following: The angles are adjacent and form 120° angle. One is 5 times as large as the other.
*January 30, 2016 by Stefanie Thews*

**algebra**

Find the equation of a line that is perpendicular to the line y = 1/4x + 5 and contains the point (-6, 0) Y=________ (Type your answer in slope-intercept form.) qaz
*February 4, 2016 by edward*

**Math**

1)express 2Igsquarerootx-Ig4/3x^2+log(4x^3)/log(100) in the form aIgx+Igb, where a and b are constants. 2)If InK=Ina-Inb+Inc-t/bc, show that K=ac/b(e)^-t/bc
*April 2, 2016 by Trinity*

**Math**

Find an equation in standard form for the ellipse that satisfies the given condition with major axis endpoints (1,-4) and (1,8), minor axis length 8.
*May 11, 2016 by Akau*

**Math**

1)Give 2 examples in which negative numbers can be used in describing a measurement or an event. 2)Write each rational number in the form, A/b, where a and b are integers and b is not equal to 0. example A: 0.7 ________ Sorry don't get the above
*September 18, 2007 by Anonymous*

**Pre-Calculus**

I do not know how to work this problem: Find the area of the region between the graph of y=x^3 and the x-axis from x=1 to x=4. I am also having trouble with: Write -1-i in exponential form. Any help would be greatly appreciated.
*September 28, 2008 by Lucy*

**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*

**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*

**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*

**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*

**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*

**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*

**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*