Tuesday

July 7, 2015

July 7, 2015

Number of results: 19,661

**Algebra 1**

A square purple rug has a blue square in the center. The side length of the blue square is x inches and the purple region is 8 in. What is the area of the purple part.
*April 13, 2015 by Larry*

**Maths**

how would you write the following expressions using numbers, parentheses and other mathematical symbols. 1. Double the sum of twenty-five and eight. 2. The quotient of fifteen and three subtracted from the product of four and nine. 3.The difference between twenty and five ...
*August 2, 2011 by Anonymous*

**Calculus II**

Fed loves polynomials with rational coefficients and only such polynomials.Suppose f(x)=square root of x. Find a polynomial P(x) that Fred will adore so that, for any x in the interval [3,5], the difference between P(x) and f(x) is less than .01 Hint: The interval is [3,5]. ...
*October 17, 2012 by Lauren*

**Calculus Help and Check**

1)Find the most general antiderivative of the function. (Check your answer by differentiation. Use C for the constant of the antiderivative. Remember to use ln |u| where appropriate.) f(x) = (1/5)−(3/x) -----> (x/5)-3lnx+C 2)Find f. f ''(x) = 4 + 6x + 36x^2, f(0...
*April 18, 2014 by Kimberly :(*

**physics**

The average speed of a nitrogen molecule in air is proportional to the square root of the temperature in kelvins. If the average speed is 475 m/s on a warm summer day (temperature = 300.0 kelvins), what is the average speed on a cold winter day (250.0 kelvins)?
*September 5, 2007 by amy*

**history**

the Puritan dilemma can someone help me check my answers the answers with an (*) at the end them are the ones i think are right 1. Englishmen rejoiced when Henry VIII turned his back on the Pope because now they felt they would be free to join the Protestant Reformation and ...
*May 1, 2012 by eric *

**history**

the Puritan dilemma can someone help me check my answers the answers with an (*) at the end them are the ones i think are right 1. Englishmen rejoiced when Henry VIII turned his back on the Pope because now they felt they would be free to join the Protestant Reformation and ...
*May 2, 2012 by eric *

**math**

is the statement |f(x)|= f|(|x)| always true, sometimes true or never true use examples. If f(x) means the function of x then it means the absolute value of the function of x equals the function of the absolute value of x. I do not know how to provide examples but I believe ...
*June 9, 2015 by george *

**Algebra**

I think that the goal is to get rid of the 5th root in this case. I know that I have to make whatever is under or in the root -in this case the number is X equal some number to the fifth power. I am supposed to use the rule a^(m/n)= n (the n-root) (don't know how to type it) ...
*July 24, 2007 by Tammy*

**SS**

What do colonialism and imperialism both require? a) one country giving money to another b) two countries sharing c) two countries working together d) one country ruling another country D What is one negative effect of the huge oil reserves in Nigeria? a) deforestation b) ...
*October 4, 2013 by Anonymous*

**Math**

Can someone please double check my answers (My answers are in Capital) 1. If you produce a million products a day and you want to test ten of them to determine if they are up to standard, which ones will you choose? a. The second ten B. TEN RANDOM UNITS c. The last ten d. The ...
*June 18, 2013 by mysterychicken*

**2nd grade math**

If you have a rectangle with 24 square units 3 lines down 8 across how can you have a 4 unit rectangle with a perimeter of 8 around the outside also 6 units with a perimeter of 10 in a seprate problem A square of 4, perimeter of 8. What about a 2x2 square? A rectangle of 3x2 ...
*May 21, 2007 by Gloria*

**Algebra**

Rationalize the denominator. Assume that all variables are positive. 5x^4y/2x^2y^3 There are square root signs around both parts of the fraction, but I cannot make them on the computer. Thanks in advance. are u using the carrot symbols to mean to the power of...? Yes Come on, ...
*February 24, 2007 by Natalie*

**physics**

Consider a square of side length a = 9.4 cm with charged particles at each of the corners.Three of the particles carry +9 nC of charge while the fourth particle carries -9 nC.In volts, what is the electric potential at the center of the square? Hint: Choose the potential to be...
*February 24, 2011 by Crystal*

**MAths**

A unit square is drawn in the Cartesian plane with vertices at (0,0),(0,1),(1,0),(1,1). Two points P,Q are chosen uniformly at random, P from the boundary of the square and Q from the interior of the square. The line L1 through P and Q is drawn. The probability that the points...
*April 29, 2013 by ianian*

**a**

Victoria wants to plant a vegetable garden in the shape of a square. She has a space allocated in her backyard that will accommodate 175 square feet. Using the drawing below, use the FOIL method to find the polynomial that represents the area of the square. If x=6, will she ...
*March 12, 2014 by WillyB*

**Please help **

True or Fulse Diaspra is the spread of ideas , customs , and technology from one people to another. I think its true ?
*March 2, 2012 by ciara*

**Chem**

The relationship between volume and pressure (at constant temperature) is directly proportional. my answer- True The relationship between pressure and temperature (at constant volume) is inversely proportional. my answer- True The relationship between volume and temperature (...
*October 17, 2010 by chris*

**Math**

Simplify: 4^(-1/2) 4-1/2 = 1/41/2 = 1/2. check my work. On exponents, negative means reciprocal. 4(-1/2) means the same as 1/4(1/2) which is the same as 1/squareroot(4) so the answer is 1^4 no, of course not. The square root of 4 is 2 isn't it? so 1/squareroot(4) = 1/2. oh lol...
*December 2, 2006 by Alex*

**Algebra1**

33. Simplify a^5/a^3 a^2? Because I think when it's like that you subtract the two powers. Simplify sqrt of a^2 How do you do this? 44. Solve 1/2 * [3/4 + 1/2] 1/2*5/4 5/8? 47. Solve 1/2*[3/4divided by 1/2] 3/4? 49. Solve sqrt of -100 a. sqrt of -100 b. -10 c. 10 d. No answer ...
*April 2, 2010 by mysterychicken*

**History**

We have to explain why greed is not the root concept of war as a social disease. Are whole goal is to find the one thing that is the main root of war It possibly could be fear. But in the mean time we have to do process of elimination on other concepts. I understand that greed...
*February 5, 2009 by Michele*

**Geometry**

find 1 counter example to show the each conjecture is false. that means prove the follwing statment false. The product of 2 positive numbers is greater than either number. ok so I know product means to multiply but if you multiply you get a bigger number . Please help...
*August 22, 2007 by tori*

**calculus**

A 33 by 33 square piece of cardboard is to be made into a box by cutting out equal square corners from each side of the square. What size corners should be cut out so that the volume of the box is maximized?
*February 20, 2012 by james*

**8 th grade math**

each side of square is 6 in. long . a scale factor of 2/3 is used to draw a similar square. how long is each side of similar square . choices are 4in. ,6 in., 8in. ,answer not here i chose 8 in. is that right
*May 14, 2012 by Anonymous*

**math**

A Coast Guard ship patrols an area of 125 square miles. The area the ship patrols is a square. About how long is each side of the square? Round your answer to the nearest mile.
*August 26, 2014 by Timothy*

**Calculus**

A rectangular box is to have a square base and a volume of 20 ft3. If the material for the base costs 37¢/square foot, the material for the sides costs 10¢/square foot, and the material for the top costs 13¢/square foot, determine the dimensions of the box that can be ...
*June 17, 2013 by Anonymous*

**Math**

I am a perfect square that is 11 more than a perfect square and 13 less than a perfect square. whcih number am I?
*January 11, 2012 by Ziana*

**math**

M and N are the midpoints of the sides of a square. What is the ratio of the area of triangle AMN to the area of the complete square? But the answer has to be in a ratio which is the area of a triangle to the area of the complete square. Also the triangle is in the square at ...
*May 19, 2012 by alandra*

**Math / Algebra**

Can you check my work? Thank you :) 1. The Domain of a function F is the same as the range of F^-1 (True or False?) Answer: True. 2. Does the function y = |x-2| have an inverse? Select the best answer. A. Yes, it passes the horizontal line test. B. No, it does not pass the ...
*January 27, 2015 by Allison*

**Math**

Can you help me? 360 in^ = _____ ft^ ( ^ means 2 ) So which would the answer be: 30, 3.6, 2.5, or 1.8 Wouldn't it be 30? (If I'm working this right)! Thank you!! Thank you A square foot = 12 inches by 12 inches = 144 square inches. What does dividing that into 360 square ...
*February 28, 2007 by Bobby*

**reading**

i need help my teacher give us adjective worksheet about spookley the square pumpking i need to write 6 adjective to describe spookley the square pumpkin. 1.little 2.square 3.kind 4.friendly 5.thankful 6.hopeful
*October 26, 2010 by 3 grade*

**Chemistry (Check)**

Classify each of these statements as always true, sometimes true or never true. __NT___11. The SI base unit of mass is the milliliter. __AT___12. A decigram is 100 times smaller than a gram. ___ST__13. The SI unit of volume is derived from the unit of length. __NT___14. There ...
*January 18, 2007 by Bryan*

**math**

2 times the cube root of radical 3. plus the cube root of radical 4.
*November 8, 2008 by amanda*

**calculus**

Help - I have three problems that I am stuck on - 1. Lim x approaches infinity (x-3/x squared + 4) 2. Lim x approaches 3 x cubed - x squared - 7 x +3/ x squared - 9 3. Lim x approaches negative infinity (x + square root x squared + 2x)
*October 27, 2008 by Jane*

**journalism check answers**

A kicker is the last sentence in a news article that leaves an impression with your reader. true or false false _______________ refers to opinion, travel, style, reviews and sports stories that are less reliant on breaking news or factual information. Soft news Current events ...
*March 26, 2015 by jimm*

**math**

A spherical ballon is being inflated at the rate of 35cc/min. the rate of increase in the surfece area(un cm²/min.) of the ballon when its diameter is 14cm is: 1. 10 * under root 10 2. under root 10 3. 100 4. 10
*May 1, 2013 by aku*

**Maths**

Let f(x) = √(x^2 + 1) - 1 (taking the positive real square root, as usual). When x = 10^-3, compute f(x), working to 5 significant figures at every stage of the calculation. Show (algebraically) that f(x) =(x^2)/[√(x^2 + 1) +1]. Use this expression for f to compute...
*November 4, 2012 by Jade*

**calculus**

Each of the sides of a square (S) with an area of 16 is bisected and a smaller square (S2) is constructed using the bisected parts as vertices. The same process is carried out on S2 to construct an even smaller square (S3). What's the area of S3? (Draw a diagram, please?)
*June 5, 2012 by Ian*

**math- quick help!**

The area of the smallest (shaded) square measures 1 square unit. What is the area of the largest square? (there are 7 squares) Please, please, please help me!!!
*November 14, 2011 by Audrey*

**math**

Perimeter of rectangle and a square are equal. Perimeter of the square is 96 cm and breadth of the rectangle is 4 cm less than the side of the square. Then two times the area of the rectangle is
*January 24, 2015 by ARUN*

**physics**

How would one plug the gravitational constant into an equation? To be honest, I'm having a hard time with the idea of the gravitational constant in general, but I need to solve an equation for the circular velocity of a galaxy. I know I need to multiply the gravitational ...
*March 8, 2012 by Grace*

**College Algebra--Still Confused **

I have a few problems I need help with and also do have multiple choice. If I can have an explanation of how to get the answer that would be great. 1. Use the discriminant to determine whether the given equation has two irrational roots, two rational roots, one repeated root, ...
*February 5, 2013 by Krissy*

**language arts**

1. The word centuries contains the Latin root cent-, meaning "hundred." Which of the following words contains the same root? center accent decent percent 2. The word mark is an Anglo-Saxon word meaning "boundary." Which of the following words does NOT contain this root? market...
*May 13, 2013 by Delilah*

**Physics/ electricity**

Consider a square of side length a = 9.7 cm with charged particles at each of the corners. Three of the particles carry +9.3 nC of charge while the fourth particle carries -9.3 nC. In volts, what is the electric potential at the center of the square? Hint: Choose the potential...
*February 22, 2011 by Me*

**algebra**

. Victoria wants to plant a vegetable garden in the shape of a square. She has a space allocated in her backyard that will accommodate 175 square feet. Using the drawing below, use the FOIL method to find the polynomial that represents the area of the square. If x=6, will she ...
*March 9, 2014 by billy*

**Algebra**

How would you explain to a seventh grader the difference between the domains of an odd root radical function and an even root radical function? How would you change your explanation for someone who had taken high school algebra?
*December 10, 2014 by Candy*

**Statistics**

A private medical clinic wants to estimate the true mean annual income of its patients. The clinic needs to be within $100 of the true mean. The clinic estimates that the true population standard deviation is around $2,100. If the confidence level is 95%, find the required ...
*April 15, 2012 by Jason*

**epidemiology**

A new screening test for a disease is developed for use in the general population. The sensitivity and specificity of the new test are 60% and 70%, respectively. Four hundred (400) people are screened at a clinic during the first year the new test is implemented. (Assume the ...
*May 20, 2011 by mona*

**epidemiology**

A new screening test for a disease is developed for use in the general population. The sensitivity and specificity of the new test are 60% and 70%, respectively. Four hundred (400) people are screened at a clinic during the first year the new test is implemented. (Assume the ...
*May 21, 2011 by mona*

**math 115**

1. find the square root 121= 11 11*11=121 is this correct? 2.carlos works 8.25h. and receives $102.30 pay. what will he receive at the rate if he worked 14h?= carlos rate of pay is $12.40 per h. $173.60 is this correct? 3. write 0.672 as a percent. 67.0% is this correct? 3. ...
*September 6, 2009 by Lea*

**GOVERNMENT**

Please help. I'm trying to figure these True or False questions. A President's threat to grant amnesty can sometimes convince Congress to make changes in a bill to satisfy the President's objections. T or F I think it's true. Am I right? As the nation has industrialized and ...
*April 19, 2007 by Suzi*

**Social Studies**

True Or False Questions: The Crusades helped to increase the flow of trade in Europe The joint-stock company, in which individual men invested and profited in proportion to the number of shares purchased, was the principal instrument of England's overseas expansion. The first ...
*November 16, 2009 by Jim*

**Living Environment(please check answers)**

1-true 2-false 3-not enough info Transplanting genetic material into bacteria is a simple task- 2 Under certain conditions, bacteria reproduce at a rapid rate-3 The continued use of insulin from animals many cause harmful side effects in some people- 1 The bacteria used in ...
*March 12, 2012 by Anna*

**U.S. History**

TRUE OR FALSE (The First World War) 1. Until 1915, most Americans thought of the war as a European conflict that would have little effect in the United States. 2. Big Berthas were massive ships used to transport German troops. 3. The Treaty of Versailles demanded that Russia ...
*March 11, 2014 by Anonymous*

**civics**

the senate power of advice and consent does not apply to the federal judges true or fales . and what's the right answer. is it true
*August 10, 2009 by roc*

**is this true?!**

animals and other organisms that eat the food in an ecosystem are called PRODUCERS. i wrote true ami i right?!
*September 23, 2010 by Sara!*

**Math**

Write a TRUE equation and explain why it is true. Ex.) 4+3=7
*September 11, 2014 by Kim*

**geometry**

A square ABCD is inscribed in a circle. The circle is folded to form a semi-sircle, and another square EFGH is inscribed in this semi-cirlcle. Find the ratio of the area of the square EFGH to the area of the square ABCD.
*March 30, 2012 by hadi*

**Math**

An open box is made from a square piece of metal by cutting out a 4 inch square from each corner and turning up the sides. Find the area of the original square if the box is to contain: A) 16 cubic inches And B) 400 cubic inches
*January 30, 2013 by Nikki *

**ALGEBRA 1**

need help solving two houses are for sale on the same street.the second house has 1000 square feet less than twice the square feet of the first house. together the houses have 4400 square feet. what is the square footage of the first house? 2x-1000 = 4400 ???
*April 28, 2010 by DEBBIE*

**maths**

(Write the following expressions using numbers,parentheses and other mathematical symbols. You do not need to colculate the results) A)Double the sum of twenty-five and eight. B)The quotient of fifteen and three subtracted from the product of four and nine. C)The difference ...
*February 24, 2011 by Anonymous*

**art help needed**

The last major painting of Manet's career, A Bar at the Folies-Bergere, reflects the artist's: optimism pessimism intense emotion positivism I see it was expressionism, but which of the answers given is a term related to that? i think it is positivism? Goya who "did not share ...
*February 17, 2009 by jeffery*

**11th grade**

Three different weights are suspended from three different springs. Each spring has an elasticity coefficient of 18.5. The equation for the vertical displacement is y= 1.5cosine(t times the square root of k/m), where t is time, k is the elasticity coefficient, and m is the ...
*November 16, 2010 by Matt*

**MATH**

The value V of a machine t years after it is purchased is inversely proportional to the square root of t+2. The initial value of the machine is $10,000. Find the rate of depreciation when t=5 . Round your answer to two decimal places. A. -381.80 PER YEAR B. -1889.82 PER YEAR C...
*September 19, 2011 by Roger*

**Math117**

how to do negative decimal exponets 2^-0.4545 Remember that a negative power is the same as the reciprocal... 2-b = 1/2b So you can compute the positive power, then take the reciprocal of the result. Yes but that works with decimal of course, use your calculator. square root ...
*June 28, 2007 by Maria*

**math**

The perimeter of the small square is one-third the perimeter of the large square. What are the side lengths of the squares? small square side = x large square side = x + 2
*March 31, 2010 by rebecca*

**algebra help**

My class is doing a unit on the "completing the square method" which is used to solve quadratic equations. I need help understanding this method. It's not making any sense right now! I have two problems and I need to figure out which number completes the square. Here are the ...
*January 4, 2007 by Bailey*

**Algebra - sqrts**

Square roots. Woohoo. Want to check some work I did. 1. Perform indicated operations 3sqrt[3]+2sqrt[27]-sqrt[12] 3sqrt[3]+2sqrt[3*9]-sqrt[2*6] 3sqrt[3]+3*2sqrt[3]-2sqrt[3] 3sqrt+6sqrt[3]-2sqrt[3] = 7sqrt[3] 2.Simplify sqrt[49x^12y^4z^8] = 7x^6y^2z^4 3.Multply (8sqrt[6]+3sqrt[2...
*November 6, 2007 by John*

**Physics 2**

The drawing shows four insulated wires overlapping one another, forming a square with 0.050-m sides. All four wires are much longer than the sides of the square. The net magnetic field at the center of the square is 91.5 µT. Calculate the current I.
*February 12, 2012 by Anne*

**Social Studies**

What do colonialism and imperialism both require? a) one country giving money to another b) two countries sharing c) two countries working together d) one country ruling another country D What is one negative effect of the huge oil reserves in Nigeria? a) deforestation b) ...
*October 4, 2013 by Anonymous*

**Honors PRE CALCULUS**

Three different weights are suspended from three different springs. Each spring has an elasticity coefficient of 18.5. The equation for the vertical displacement is y= 1.5cosine(t times the square root of k/m), where t is time, k is the elasticity coefficient, and m is the ...
*November 16, 2010 by Matt*

**Honors PRE CALCULUS**

Three different weights are suspended from three different springs. Each spring has an elasticity coefficient of 18.5. The equation for the vertical displacement is y= 1.5cosine(t times the square root of k/m), where t is time, k is the elasticity coefficient, and m is the ...
*November 16, 2010 by Matt*

**Ethics in Technology**

Which of these statements about the National Crime Information Center (NCIC) is true? A. The NCIC databases contain about 40 million records. B. Improper use of the NCIC has led to about 1 million false arrests. C. Local law enforcement agencies enter most of the information ...
*March 29, 2015 by Pat*

**math**

x^3 + 4x^2 + 14x + 20 use the root or zero feature of a graphing utility to approximate the zeros of the function accurate to three decimal places. I do not know how to use the root or zero feature on my calculator. If someone could just explain how to do it that would be ...
*August 20, 2009 by Hannah*

**Algebra2**

The perimeter of a square is 12 cm greater than that of another square. It's area exceeds the area of the other by 39 cm^2. Find the perimeter of each square.
*September 10, 2013 by Tim*

**English please check my answer**

Please check my answer thank you Cardiology is the study of the heart. Which of the following terms describes the foundation upon which the medical word is built that usually relates to the body organ involved ? A. Prefix B. Suffix C. Root D. Combining form My answer is Root (c)
*March 19, 2008 by Dakotah*

**Math**

Can someone please check my answers? A yard has a square gate that has an area of 8 square meters. 1. What is the height of the gate in meters? Answer: 28 meters 2.How many feet would that be? Answer: 8.4 feet 3. If each side was 1 foot longer, what would be the area of the ...
*April 28, 2015 by Chloe*

**PLZ HELP!!!! communication**

DEFINITION----Selective listening: Involves focusing only on particualr parts of communication QUESTION---Selective listening is effective because we focus on the most important parts of a message. True or False my only problem is the deffiniton says particular while the ...
*April 4, 2010 by Hannah*

**Math**

1. One of the formulas for finding the partial sum of an arithmetic sequence is Sn = n(a1 + an) True 2. The value of a probability must be in the interval [0, 1]? True
*June 7, 2013 by mysterychicken*

**stats**

suppose a normal distribution has a true population mean of 18 and a true standard deviation of 2. what % of observations will be 18 or less, 18 or greater and in the range from 16 to 20?
*June 19, 2013 by dometrice*

**physics: escape velocity **

You are on Pluto and would like to send a probe into space so that it does not fall back to the surface. What minimum launch speed do you need? (The mass of Pluto is 1.3x^22 kg and the radius of Pluto is 1.18x10^6 m). Answer in km/s. I have used the velocity of escape = (...
*March 26, 2010 by Laramie*

**7th grade math**

Q:The ratio of the perimeters of two square is 5 to 4. If the area of the smaller square is 36 units, what is the area of the larger square? A: 56.25 My teacher told us the answer, 56.25, so that we could correct it. But I don't understand how she got the answer at all, so can...
*April 7, 2013 by dingbat*

**ISDS **

The optimal total shipping cost in a minimization transportation model is $622, and the reduced cost from source node 1 to destination node 6 is $6. This implies that if one were to deviate from the optimal solution by shipping one unit from node 1 to node 6, the new minimum ...
*March 13, 2012 by jamaal*

**History**

True Or False; The Political machines of the large cities determinded what type of projects would be funded by tax dollars and for the most part they were honest organizations, The U.S. government's treaties were just ways of moving the Native Americans around so that it and ...
*May 7, 2012 by MM*

**math**

If a quarter circle is placed on a square target and the radius of the quarter circle is the same as the length of a side of the square, what is the probability that a dart that hits the square does not hit the quarter circle
*October 26, 2011 by Nikki*

**Math**

A media company divides 1 million copies of a new music CD into 100 equal groups before sipping the CD to 100 stores .how many CDs is the company shippi ng to each store? Please help me , i don't know the answer. Write the value of the underlined digit. 76,982 the value 9 ( ...
*September 8, 2014 by Nnn*

**HELP!!!!**

Darnell used one small can of polyurethane to seal a square patch of his hardwood floor. The can advertised coverage of 50 square feet. What is the approximate side length of the square Darnell sealed? a)7 feet b)8 feet c)25 feet d)49 feet
*April 8, 2011 by Dezzy*

**Reading**

If a blue fish is 70 ft long and a red fish is 45 feet long. This is statement true or false. A blue fish is not as long as a red fish
*May 8, 2012 by Annie*

**American Government**

Hey guys could you please check this thanks. The directions are either the following statements are true or false. 1. ------ Article I of the constitution refers to the Legislative Branch. Answer: True 2. ----- Congress is made up of two chambers, the senate and the president...
*January 29, 2009 by Baby Girl 2122*

**Geometry **

1. If ΔRST symbol ΔNPQ, then RT line is congruent to _____. (1 point) line NP line NQ line PQ line QP 2. Given RST NPQ, RT = 7x 5, NQ = 5x + 11, find the length of RT and of NQ. (1 point) 8 51 40 56 3. Which of the following statements is true about the triangles ...
*December 5, 2013 by hi*

**math**

Find two positive decimals a and b that make the following statement true. Then find two positive decimals a and b that make the statement false. If a < 1 and b < 1, then a ÷ b < 1.
*October 13, 2014 by Anonymous*

**Calculus**

I think I have the correct answers for the following problems. For anyone who has the time I would appreciate it if you could tell me if I am correct/incorrect. Thank you. 1). Differentiate ć(x)sin x = (2xcosx+sinx)/2ć(x) 2). Differentiate 2t/(4+t^2) = (8-2t^2)/(4+t^2)^2 3...
*September 25, 2011 by Linda*

**Algebra**

Rationalize V stands for square root 3/V2 3/V2 x V2/V2 = 3V2/V2V2= 3V2/V4 =3V2/2 Answer 3V2/2 6V2/V3 6V2/3 x V3/V3 =6V2V3/V3V3 = 6V6/3= 2V6 My book gives these two examples. In the first problem you multiply the 2 in the denominator and get 4. It the second problem the 3 in ...
*June 19, 2009 by G*

**algebra**

Determine the value(s) of k for which x^2+(k-2)x-2k=0 has equal and real roots. a x^2 + bx + c = 0 has two different roots if the discriminant D defined as: D = b^2 - 4 a c does not equal zero. If D = 0 then there is one root. That root is then real if b/a is real. In this ...
*January 18, 2007 by Shay*

**math**

2xsquare- 8x - 42 over 6x square divided by x square - 9 over x square - 3 x
*January 28, 2010 by daniel*

**math**

The area of a rectangle is 84 square units. If its length is shortened by 7 units and its width by 2 units a square is formed. Determine the area of the square.
*September 10, 2009 by Mary*

**math**

a square has a length of 5 inches. Then it is increased by 20%. Then the same square has a width of 10 inches and it is increased by 10%. How Many Percents has the area of the square been increased By? Thanx 4 your Help
*January 24, 2010 by qwertyuiop*

**Japanese langauge help**

I have marked my answer with a ā
, if I am wrong could you please give me the correct choice and explain if you will? I was really confused on these types of questions. Comparative sentences usually use the words: "ć»ć" and "ę¹"? True ā
False 1. Write a comparative ...
*January 14, 2014 by Kirito*

**pre-cal**

The sq root of -4 (3-sq root of -9) a)6 +6i b)-6+6i c)6-6i d)-6-6i Again the i's are in italics. I would think that c and d could be eliminated because the answer is suppose to be in the form a + bi but they could be trting to trick you. I'm not quite sure what your problem is...
*March 7, 2007 by raven 31791*

**algebra/math**

I have this figure of a square QRST with an equilateral triangle PQT sitting on top of the square. The figure looks like a little house... My question is if PQ equals 6 cm, then what is the area of the square? Do I need to find the area of the triangle to figure this out? Do I...
*March 11, 2009 by Mike 50*