Sunday

December 21, 2014

December 21, 2014

Number of results: 14,170

**math**

2xsquare -8x -42 over 6xsquare divided by xsquare -9 over xsquare -3x in simplist form
*January 31, 2010 by Anonymous*

**Math**

Write Each equation in slope-intercept form then identify the slope and the y-intercept for each line 2x-y=12
*February 18, 2010 by Tanya*

**Physcis - Wavefront and wavelets**

Describe how the wavelets that form in the wavefront apparently vanish behind it?
*November 3, 2010 by Farah*

**math**

solve for x by writing the equation in exponential form: log sub 4 x=-2 log sub 5 (2x + 1)=2
*March 3, 2011 by anonymous*

**Math 4th gr**

How do I write this in standard form 3,000,000+200,000+40,000+600+70+7?
*September 15, 2011 by Miya*

**geometry**

Triangle ABC has side lengths 7, 24, and 25. Do the side lengths form a Pythagorean triple?
*December 14, 2011 by Cindy*

**math**

how do u write decimals as fractions and how do u write decimals as mixed numbers in simplest form?
*December 19, 2011 by Anonymous*

**Mixed numbers and improper fractions**

Improper fraction as a mixed number in simplest form? 29/18
*January 25, 2012 by Shamekka teart*

**Math**

Let f(t) be an exponential function with f(0) = 11 and f(4) = 59. Use the form f(t) = Pa^t to find an equation for this exponential function? What is the Value of P and A? Thanks!
*February 12, 2012 by Andy*

**ALG 2!!!**

WRITE AN EQUATION IN SLOPE-INTERCEPT FORM FOR THE LINE DESCRIBED. SLOPE 3,Y-INTERCEPT AT 4
*October 7, 2012 by tyneisha*

**ALG 2!!!**

write an equation in slope-intercept form for the line described. slope 3,y-intercept at -4
*October 8, 2012 by tyneisha*

**english**

1. How do your son study ? or How does your son study ? tell me which one is the correct question form .
*August 31, 2013 by R S Telagathoty *

**Math**

If point A is (-8,3) and point B is (-6,1) and slope is -1 what would the x and y intercepts be? What would the equation be in standard form?
*December 1, 2013 by Anonymous*

**MATH**

If point A is (-8,3) and point B is (-6,1) and slope is -1 what would the x and y intercepts be? What would the equation be in standard form?
*December 1, 2013 by Anonymous*

**English**

Thank you writeacher for your corrections! These are the very last sentences for you to check. 1) An epic contains formulas, that is, conventional expressions easy to remember, and kennings, which are metaphorical expressions. Beowulf 2) Beowulf is a young Scandinavian hero ...
*March 9, 2010 by Franco*

**Chemistry**

How many carbon dioxide molecules will form when a naptha molecule burns? Thanks Write the equation, then solve it just as we did the problem on water molecules yesterday. Post in detail any questions you have about what to do next.
*March 19, 2007 by Jessica*

**math**

Find an equation of the line through the point that cuts off the least area from the first quadrant. Please enter your answer in the slope-intercept form. What were the coordinates of the point? (4,16)... sorry about that.. thanks!
*March 30, 2007 by Tina*

**algebra**

Can someone help me solve this: Decide all values of b in the following equations that will give one or more real number solutions. (a) 3x^2+bx-3=0 (b) 5x^2+bx+1=0 (c) -3x^2 +bx-3=0 (d) write a rule for judging if an equation has solutions by looking at it in standard form.
*November 8, 2007 by nana*

**algebra**

I am really stuck, can someone please help me with this? Multiply and simplify by factoring. Assume that all expressions under radcals represent nonnegative numbers. (type in radical form) ∛(y^13 ) ∛(16y^14 )
*July 14, 2008 by C*

**AP Chem**

In a typical synthesis reaction, 0.142 g of chlorine gas is reacted with an unkown elemnt X to form a compound with the formula XCl3. If the final product has a mass of 0.178 g, what is the atomic mass of the unknown element?
*January 12, 2009 by Anna*

**Pre-Cal**

Find the standard form of the equation of the ellipse. (Remember center is midpoint between either foci or vertices) (1) 9x^2+4y^2+36x-24y+36=0 (2) Vertices: (0,5)(0,-5) Passes through the point (4,2) Centered at the origin
*April 19, 2009 by Cal*

**trig**

Two sides of triangle CDE are 9 and 4, as shown. Write an equation in standard form for the line CD. Leave values as radicals. There is a picture of a triangle that passes through point (4,0) The answer is 65^1/2x + 4y = 4(65^1/2) But, I don't understand how to do this problem.
*January 28, 2010 by Dale*

**Medical Terminology**

You're asked to change plural medical words to the singular form. Which of the following combinations represents the correct conversion? A. Criterion, criteria B. Bacteria, bacterium C. Lumen, lumina D. Ganglion, ganglia
*March 26, 2010 by Brenda*

**Chemistry**

for A, Z, and X I'm typing it in the form A,Z,X (or X as a particle) since I obviously can't do sub or superscript... 1,1,H + 1,1,p --> 2.1,H + ? I thought initially the missing particle at the end would be either 0,-1,e or 0,1,e (beta emission/decay) but apparently it's ...
*April 13, 2010 by Trixie *

**Math**

I've been staring at this problem for an hour and have NO IDEA WHAT TO DO! "A quadratic function in the form f(x)=ax^2+bx+c contains the points (-1,0), (0,2), and (2,0)." a) determine the values of a,b, and, c b) Factorise the expression ax^2+bx+c obtained from the function in...
*May 4, 2010 by David *

**antelope valley**

What is the acceleration of a modified atwood machine if the mass of the cart is 4 kg and the hanging mass is 11 kg. (g = 9.8 m/s2 - give your answer to one decimal point) Please include the accepted abbreviated form of the appropriate unit. m/s2 = m/s/s
*November 8, 2010 by john*

**geometry**

a field bounded on one side by a river is to be fenced on three sides to form a rectangular enclosure. there are 320 ft of fencing available. what should the dimensions be to have an enclosure with the maximum possible area?
*February 11, 2011 by anonymous*

**spanish**

complete the blank with the correct form of verb. Un equpio ___________ y el otro gana. (perder) i know it means one team wins and the other loses i just cant figure out the verb tense
*February 29, 2012 by eiizabeth*

**Chem 2**

A 375-gallon tank is filled with water containing 167grams of bromine in the form of Br- ions. How many liters of Cl2 gas at 1.00 atm and 20C will be required to oxidize all the bromide to molecular bromine?
*May 6, 2012 by Kerstin*

**College Algebra**

The distance, d, in feet that an object falls in t seconds is modeled by the formula d=16t(2) if you dive from a height of 128 feet, how long will it take to hit the water? (answer may be in simplified radical form).
*February 8, 2013 by Anonymous please help! :) *

**Alg 1**

An area rug is shaped like a golden rectangle. Its length is 8 ft. What is the rug's width? Write your answer in simplified radical form and rounded to the nearest tenth of a foot. Please explain how to work this. Thanks.
*April 2, 2013 by Jane*

**CHEMISTRY**

18cm^3 of 1.0M H2SO4 just reacted with 24cm^3 of 1.5M NaOH to form sodium sulfate & water. Calculate the amounts in moles of sulfuric acid & sodium hydroxide reacting & write an equation for the reaction.
*October 12, 2013 by Janey*

**college algebra**

Solve the exponential equation using logarithms. Give the answer in decimal form, rounding to four decimal places. (Enter your answers as a comma-separated list.) 4^(x − 3) = 3^(2x) x = _____
*November 18, 2013 by Dee*

**physics**

An AC voltage of the form Δv = (100 V) sin(1000t) is applied to a series RLC circuit. Assume the resistance is 400 , the capacitance is 4.60 µF, and the inductance is 0.500 H. Find the average power delivered to the circuit. W
*December 2, 2013 by chan*

**Chemistry #4**

What is the concentration of a solution formed by dissolving 10.0g of ammonium acetate in enough water to form 150.0mL of solution? Could someone please explain and show me how to do this? I have the answer= .865M But I am not sure exactly how?!
*December 9, 2013 by Chelsea*

**materials science engineering**

Identify the [221] vector.(crystallographic directions qns) The answer given corresponds to 0.5 in x direction,0.5 in y and 1 in z. Why is it not [1 1 0.5], the simply reduced form. The ans is the reciprocal of [221], which puzzles me since this is not a plane.
*January 25, 2014 by miguel*

**Physics 2**

four identical charges (q = +3µC) are arranged in a form of a rectangle. what are the magnitude and direction of the net electric force on the charge in the lower right corner attributable to the other three charges? distances are in meters.
*August 16, 2014 by Naomi*

**French**

Please check these: I don't know how to do some of the accents sorry:( Directions: Fill in the correct form of au, à la, à l', or aux 1. Elle prête la chaise ------ voisin. Answer: au 2. Ils sont ------ église. Answer: à l' 3. E(with an accent)Ecrivez- vous -------- garçons. ...
*August 21, 2009 by skittles*

**English III **

1. In Dust Tracks on a Road, what kind of literature did the young Hurston like best that made her think of heroic deeds? A. stories that were sad B. stories of math geniuses C. stories that were great myths D. stories about young women 2.What is the main conflict in the ...
*June 9, 2012 by Crystal*

**Chemistry**

I was wondering if you could help me with this problem. If the reaction proceeds with a 96.8% yield, how many kilograms of CaSO4 are formed when 5.34 kg SO2 reacts with an exfess of CaCO3 and O2? Thanks for your help. Write the equation for the reaction and balance it. CaCO3...
*July 9, 2007 by Ally*

**Physical Science**

1. Which is faster,160 miles an hour or 300 inches a second? 2. An athlete ran a 15-km race in 48 minutes and 24 seconds. What was his average speed for the race in miles per hour? 3. A banana weighs 75 grams. If you buy 12 bananas and they sell for 75 pesos per kilogram, how ...
*June 16, 2012 by Yeya*

**chemistry**

In the lab, 20.0 g of sodium hydroxide is added to a beaker giving it a total mass of 128.4 g. Sulfuric acid is added until all of the sodium hydroxide reacts. After heating, the total mass of the beaker and the dry compound is 142.3 g. Caculate the percent yeild. 2NaOH + ...
*June 13, 2007 by jill*

**misc.**

Is yeast a grain? No. Yeast is a plant cell,it does not form a seed. Is there any other grains that can be spelled out of "Merry Christmas?" I already know riceis a grain. rye
*December 1, 2006 by Marie*

**trig**

find the exact solutions (è in degrees) sin^2è+2cosè=-2 change the sin^2 to 1-cos^2, then rearrage the equation into quadratic form, use the quadratic equaion.
*April 16, 2007 by Devon*

**Pre-Calc**

I'm stuck on a pre-calc problem. I need to find y as a function of x, where the constant c is a positive number for In(y-1)+In(y+1)= -x+c express your question as ln[(y-1)(y+1)] = -x+c change that to exponential form e^(-x+c) = (y-1)(y+1) e^(-x+c) = y^2 - 1 y^2 = e^(-x+c) + 1 ...
*May 9, 2007 by Sarah*

**Chemistry**

3Ca(CH3COO)2(aq) + 2H3PO4(aq) ¨ Ca3(PO4)2(aq) + 6CH3COOH (aq) reduce in net ionic form... how do you know what to separate? for example, how would i know to separate Ca and PO4 or to keep it together??
*November 25, 2007 by Meena*

**Calculator problem-- urgent!!!**

Hi, I'm trying to graph the equation "y=3x" on my graphing calculator BUT the "x" is in exponential form-aka small and up to the right of the 3. How do I graph it? I know that you go to "y=" and then I typed a 3, but how do I get that little x? Thanks very much
*April 24, 2008 by Anonymous*

**Precalc**

The sides of a triangle form an arithmetic sequence with a common difference of 2. The ratio of the measure of the largest angle to that of the smallest angle is 2:1. Find the area of the triangle. Please help!
*May 26, 2008 by Megan*

**Math**

The sides of a triangle form an arithmetic sequence with a common difference of 2. The ratio of the measure of the largest angle to that of the smallest angle is 2:1. Find the area of the triangle. PLEASE HELP!
*May 26, 2008 by Megan*

**math**

i just forgot how to find the equation in slope-intercept form for a line. Can anyone please give me some hints to do it with "the line through (3,-2) with slope m=4/5" as an example? Thanks a lot!
*September 3, 2008 by komi*

**earth science**

how do chemical rocks form, are some types of limestone considered a chemical rock, and what mineral does rock salt crystalize from. thank you if you choose to answer. im so stumped.
*October 9, 2008 by ting*

**Math**

The ratio of seven dimes to three quarters. It wants me to write this ratio in simpliest form. I really need to understand how to do this. I have a few more like this that I have to do. Thank You
*October 25, 2008 by Amanda*

**spanish**

1.Ellos no es estadounidenses son ingleses 2. Mi tarea esta en mi cuaderon 3. La clase de espanol es divertida ser y estar use the corrent form 1. es and son 2. esta 3. es
*January 9, 2009 by sam*

**4th grade english**

Now the porpoises _______ over three buoys.(jump) have jumped Is have jumped the correct form of the verb in parentheses?
*January 12, 2009 by Amy*

**Math**

What does the following infinite series starting at k=2 converge to: Σ ln (1 - 1/k^2) In other words, what does this converge to: ln(1 - 1/4) + ln(1 - 1/9) + ln(1 - 1/16) + ln(1 - 1/25) + ln(1 - 1/36) + ... I assume the first step is this: Σ ln (1 - 1/k^2) = ln &Pi...
*May 28, 2009 by Sean*

**Art**

Discuss the representation of the human body by the Egyptians and the Greeks. What are the similarities and differences between the two? What does the sculptural representation of the human form say about each culture?
*August 18, 2009 by Amberina*

**algevra 2**

parallel to y=-5 and through (2/7) I need to find the slope intercept and standard form of this problem. I know this problem was already posted, but I still don't know how to find those two forms
*August 28, 2009 by Anonymous*

**arithmetic**

I know that this question had already been answered. But still I could not understand. Calculate this question and write the answer in standard form.The answer should come 5*10. (4.5*10^12)divided by (9*10^10)
*August 31, 2009 by Eman*

**precalculus**

write an equation in general form... the perpendicular bisector of the segment with endpoints at (2,-1) and (4,-5). I found the slope and then found the mid point and wrote to the equation and got X-2Y=3. But the answer is X-2Y=9...any help???
*September 15, 2009 by kennedy*

**English**

1. What is it for? (What is the meaning of this one? Some other similar expressions, please? What is the suitable answer to the question?) 2. Is this seat taken? 3. Has anybody taken this seat? (Is #2 the active voice form of #3?)
*December 19, 2009 by rfvv*

**grammer (troublesome verbs)**

Write the form of the underlined verb indicated in the (). They lay down their troubles for a while. (past) "Is the past tense of lay, laid or lain?"
*February 10, 2010 by sierra (6th grade)*

**pre-calculus**

form a polynomial f(x) with real coefficients having the given degree and zeros. degree: 4; zeros: -1, 2, and 1-2i. I got an exam tomorrow, i would appreciate any kind of help, thank you.
*March 13, 2010 by Hawra*

**Chemistry**

How do i write the equation betwen ethanoic acid CH3COOH and urea (NH2)2CO? I think they form carbondioxide and an ammonium salt, but how do i write the actual equation?
*March 21, 2010 by Hallie*

**Chemistry**

A reaction of the form aA-----products is second-order with a rate constant of 0.225 L/(mol/s). If the initial concentration of A is 0.293 mol/L, what is the molar concentration of A after 35.6 secs?
*September 26, 2010 by Yesenia*

**FRENCH**

Does the word "CHER" require an accent mark? What is the feminine form of the word? Additionally, can you remind me of the correct nomenclature for the two kinds of accent marks and which directions they go??
*December 3, 2010 by JRobin*

**Chemistry**

Magnesium is found in the ore,magnesite, MgCO3. The ore decomposes when heated to form magnesium oxide and carbon dioxide. Write the balanced equation for this reaction.
*April 24, 2011 by Tom*

**maths**

The method for completing the square can be used to write the expression −2x^2 + 12x−5 in the form a(x + b)^2 + c, where a, b and c are constants. Choose the option that gives the value of c. Options A −23 B −13 2 C 5 2 D 3 E 13 F 14
*May 11, 2011 by albert*

**Pre Cal**

a 6 foot person is standing x feet away form a 10 foot lamppost. What is the distance d from the base of the lamppost to the end of the persons shadow, espressed as a function of x.
*July 24, 2011 by Ashley*

**math**

a student is selected at is the probability the the randomly selected stundent is neither a 10th grade nor an 11th grade express your answer in fraction in simplest form
*August 25, 2011 by a student is selected at is the probability the th*

**college alegebra**

Can someone please help me!!!!!! Find th eequation of the line containing the point P and having the slope m. Write your answer in slope intercept form. Graph this line. P= (0,0) M = 0
*November 16, 2011 by amy*

**calculus**

Find the equation of the tangent line to the curve y=sqrt(x) at x = c. Put the answer in slope intercept form y=mx+b. Use the definition of the slope of the tangent with no short cuts.
*January 31, 2012 by jon*

**math % tas a decimal and fraction**

can youcheck these i need to write each percent to a decimal and a fraction in simplest form: 39) 175% d- .00175 f: 7/4000 40) 120% d: .00120 f: 6/5000 42) 5/8% d: 62.5 f: 62 1/2 44) 8 1/4% d: 8.25 f: 8 1/4
*February 13, 2012 by marko*

**Math**

Write the equation of a line in slope intercept form that is parallel to the line y= 1/3x+ 5 and passes through (-9, 5). Do not use any spaces. Slope should be a reduced improper fraction.
*May 25, 2012 by Natalie*

**math**

Prove that , if the difference between a three digit number in the form of a0b that is digit at ten's place is 0 and the sum of it's digits is divided by 99, we always get the number equal to a?
*August 28, 2012 by TUHITUHI*

**spanish**

What form of conjugated verb do I use for "tus amigos" is it in the ellos category? so it would be something like Tus amigos estudian para el examen. is that correct?
*September 8, 2012 by michelle*

**PHYSICS! **

an object weighs 528.0 Newton. It is being pushed along a horizontal surface by a 475.0-Newton force. Determine the mass of the object in a numerical form.
*October 31, 2012 by Michael*

**probability**

The digits 2, 3, 4, 7, and 8 are each used once in a random order to form a five-digit number. What is the probability that the resulting number is divisible by 4? Express your answer as a common fraction.
*November 15, 2012 by bob*

**does anyone know probability????**

The digits 2, 3, 4, 7, and 8 are each used once in a random order to form a five-digit number. What is the probability that the resulting number is divisible by 4? Express your answer as a common fraction.
*November 16, 2012 by epicmathfailure*

**Math**

Jody walked 1/3 mile on Monday, 2/3 mile on Wednesday, and 1 3/4 miles on Friday. In simplest form, how far did Jody walk in all on those three days?
*December 27, 2012 by Anonymous*

**chemistry**

sodium metal dissolves im liquid mercury to form of NA(s) and Hg(l) are 0.97 g/ml and 13.6 g/ml respectively. a sodium amalgoum is made by dissolving 10 ml Na (s) in 20.0 ml Hg (l). The final volume of solution is 21.0 ml. Calculate the molarity of Na in the solution.
*January 31, 2013 by masharat*

**Chemistry**

Determine the volume of methane CH4 gas needed to react completely with 0.660 L of 02 to form methanol CH3OH I'm confused because I'm sure CH4 + O2 don't give you CH3OH. Thanks
*March 29, 2013 by Shadow*

**math**

How would you solve for these word problems in one variable inequality form? 1.One half of a number, increased by 9 is less than 33. 2.Six less than or equal to the sum of 4 and -2x.
*September 25, 2013 by Jonas*

**Chem Simple question**

Magnesium metal burns in oxygen to form magnesium oxide, MgO. (a) Write a balanced equation for the reaction Why is it 2Mg+O2->2MgO and not Mg+O->MgO
*September 29, 2013 by Julie*

**math**

solve 6x^3-13x^2+x+2=0 using a graphing calculator. then use your answer to write the given function in factored form. (do not use the factor theorem to factor this.) (6 marks)
*November 25, 2013 by paul*

**math**

solve 6x^3-13x^2+x+2=0 using a graphing calculator. then use your answer to write the given function in factored form. (do not use the factor theorem to factor this.) (6 marks)
*November 25, 2013 by Navin*

**Geometry**

What is the reason called when there are two legs on an isosceles triangle, are bisected using a mid segment to form a trapezoid, and you are trying to prove the legs of the trapezoid are congruent?
*January 14, 2014 by Kathleen*

**Finance**

The projected revenues and costs that form the basis of the potential for a project's acceptance or rejection are estimates of ______________. A. Future activity B. Past activity C. Known activity D. Current activity
*April 8, 2014 by Juan*

**Math 10**

Algebraically, determine the vertex form of a quadratic relation, if the vertex is at (-1, 2) and the point (1, -10) is on the parabola. Show all of your steps. I know that the formula is y=a(x-h)suared+ k but how do i apply these numbers to this formula? Thank you!
*April 22, 2014 by Serena*

**Chemistry**

You can purchase hydrochloric acid in a concentrated form that is 37.0 hcl by mass and has a density of 1.20g/mL. Describe how exactly you would prepare 2.85 L of 0.500 M HCL from the concentrated solution.
*May 7, 2014 by Rebecca*

**maths**

a)Express y = 2 (x - 1) (x - 5) in the form y = ax^2 + bx + c. b) From the above quadratic equation calculate the following: I) x and y intercepts II) Coordinate of the turning point III) Is the graph a maximum or minimum turning point?
*May 20, 2014 by Shane*

**geometry**

The lateral area of the right regular triangular prism is 18 cm^2.Find the total surface area.give your answer in decimal form rounded of to 2 decimal places
*June 4, 2014 by dj*

**chemistry**

When water decomposes into oxygen and hydrogen, the mass A. increases B. varies according the number of hydrogen and oxygen molecules that form. C. remains constant D. decreases
*August 23, 2014 by Yui*

**chemistry**

3. If 5.20 g of HCl is added to enough distilled water to form 3.00 L of solution, what is the molarity of the solution? [Use molecular weight: HCl, 36.46 amu] 5.20/36.46= 0.1426 X 3.00=0.428 M IS THIS CORRECT
*November 8, 2014 by Anonymous*

**math please help!!!!!**

Factor f(x) into linear factors given that k is a zero of f(x). f(x)=x^3+(12-4i)x^2+(32-48i)x-128i, k=4i In completely factored form, f(x) =____ (factor completely. simplify your answer)
*November 21, 2014 by Ernie*

**comma splice**

Dr. Frankenstein flung a power switch, blue streamers of static electricity cracked about the table the creature gave a grunt and opened smoldering eyes. I think the semicolon is required because each is a sentence by itself. Dr. Frankenstein flung a power switch; blue ...
*April 24, 2007 by toby*

**Advanced Biology**

Certain_________ block prokaryotic ribosomes, but not those of eukaryotes. Certain proteobacteria________ nitrogen. The earliest life form may have been a_________ that obtained energy from inorganic compounds. The answers to these fills in a crossword puzzle.
*January 3, 2010 by Jennifer*

**spanish**

por la noche yo (escuchar) musica o (bailar) en mi cuarto. Mis padres (leer) revistas o (ver) la tele, y mi hermano (montar) en monopatin con sus amigos pls help me in correct form to change wod in parenthesis
*October 11, 2010 by matty*

**Int.science**

Which of the following statements is true? A hypothesis is created at the end of an experiment. The dependent variable is changed by the experimenter. The best hypotheses are written as answers to a question. Observations are often used to form questions about the world
*October 2, 2014 by Casey*

**science**

a)Calculate the mass percent of carbon in the hydrated form of the solid that has the formula BeC2O4 loosly bonded to 3H2O. b)When heated to 220degrees C, BeC2O4loosly bonded to 3H2O(s) dehydrates completely as represented below: BeC2O4loosely bonded to 3H2O ==> BeC2O4 + ...
*January 4, 2007 by michelle*

**Calculus**

Chairs in an auditorium are arranged in rows in such a way that the first two rows each have the same number of chairs. The third and fourth rows each have three more chairs than the first and second row; the fifth and sixth rows each have three more chairs than the third and ...
*September 21, 2011 by Anonymous*

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