Algebra ->  Algebra  -> Quadratic Equations and Parabolas -> Questions on Algebra: Quadratic Equation answered by real tutors!      Log On

 Ad: You enter your algebra equation or inequality - Algebrator solves it step-by-step while providing clear explanations. Free on-line demo . Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help! Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

 Question 56702: Assume the cost of a company picnic is described by the function P(n)=(1/2)n^2-10n+80 where n represents the number of employees and family members attending the picnic and P (in dollars) represents the cost of the picnic How many employees and guests in attendance produce a minimum cost? What is the minimum cost for this event? Click here to see answer by funmath(2925)

 Question 56989: I need your help onthe following problem: "A rectangle whose perimeter is 250 is 8 feet shorter than it is wide.Find the dimensions and area." Can you please help me. Click here to see answer by ankor@dixie-net.com(15649)

 Question 56993: this is a story problem. "A rectangle whose perimeter is 192 is 3 times as long as it is wide. Find the dimensions and area." Can you please help me. Click here to see answer by rcmcc(152)

 Question 57152: Is there a quadratic functions with zeros x = 1, x = 2, and x = 3? Click here to see answer by Scriptor(36)

 Question 57203: Can you please help me with this problem? Using the function y=1/x-2 Give the y values for x= -2,-1,0,1,2,3. Can you break it down and show me step by step? Using these points, draw a curve and show it on a graph. Click here to see answer by stanbon(57308)

 Question 57322: Please help again. Much appreciated. The demand equation for a certain type of printer is given by D=200p+35,000 The supply is predicted to be: S=p^2+400p-20,000 Find the equilibrium price. Here is what I did. I dont know how to find the price. p^2+400p-20,000=-200p+3500 O=p^2-600p+23,500 p=600psqrt(-600)^2-4(23,500)/2 p=600+/-sqrt266,000/2 Is the price 42.12???? Hellllpppp! Click here to see answer by stanbon(57308)

 Question 57318: please help me. A ball is thrown upwards from the roof of a buildiung 100 m tall with an inituial velocity of 20m/s. When will the ball reach a height of 80m? I believe the equation is h=5t^2+80t+100. How do I solve using quadratic formula? Thanks Click here to see answer by Nate(3500)

 Question 57307: What is the domain and range for the (parabola)function: 1x^2=(-1)x+-1=0 thanks Click here to see answer by Nate(3500)

 Question 57392: This is actually a word problem, but it needs to be graphed to find the parabola along with the solution and I don't know where to begin: A company uses the formula C(x) = 0.02x^2 - 3.4x + 150 to model the unit cost in dollars for producing x stabilizer bars. For what number of bars is the unit cost at its minimum? What is the unit cost at that level of production? Can someone PLEASE help? Click here to see answer by funmath(2925)

 Question 57210: Suppose that the equation p(x) = -2x^2 + 280x - 1000, where x represents the number of items sold, describes the profit function for a certain business. How many itmes should be sold to maximize the profit? Click here to see answer by funmath(2925)

 Question 57197: Can you please help me? The problem is the square root of X squared to the third power equals 9. Can you show me how to work this out step by step? Click here to see answer by checkley71(8403)

 Question 57155: 1. If x = 3 and x = -5, then form a quadratic equation. 2. What type of solution do you get for quadratic equations where D < 0? Give reasons for your answer. Also provide an example of such a quadratic equation and find the solution of the equation. 3. Create a real-life situation that fits into the equation (x + 3)(x - 4) = 0 and express the situation as the same equation. Click here to see answer by ankor@dixie-net.com(15649)

 Question 57590: 15x^2y^2-9xy^2+6x^2y I came up with 3(5xy-3y+2x) I am not sure this is right can you let me know if i am going in the right direction. Click here to see answer by stanbon(57308)

 Question 57591: -3 - square root of 18 / -6 sorry i do not know how to place the square root sign in so i wrote it out. Click here to see answer by stanbon(57308)

 Question 57597: 9a^2- 64b^2 I tried to work this out but i am not sure this is correct can you let me know. thank you (3a+8b)(3a-8b) Click here to see answer by stanbon(57308)

 Question 57599: x^3y+2x^2y^2+xy^3 I came up with the answer can you let me knwo if i am correct x(x^2y+y^3+2xy^2) xy(x^2+y^2+2xy) Click here to see answer by stanbon(57308)

 Question 57600: i tried to work this out cna you please check x^3+ax+3a+3x^2 i re order to get the like terms together this is what i came up with 3x^2+x^3+ax+3x^2 x(3x+x^2)(a+3a) x(3+x)a(3) i think i am wrong can you please show me an eash way or lend any tips you may have. Click here to see answer by stanbon(57308)

 Question 57588: Towering antenna. A guy wire if length 50 feet is attached to the ground and to the top of as antenna. The height of the antenna is 10 feet larger than the distance from the base of the antenna to the point where the guy wire is attached to the ground. What is the height of the antenna? 10feet up the left side of the triangle x-2 across the bottom x on the right side of the triangle Click here to see answer by stanbon(57308)

 Question 57765: 18. 2h^2-h-3=0 2(h-1.5)(h+1) Tried to work it out don't know if this is the right answer I do not get how to doe these. Can you please check thank you very much I don't know what I would do with out such good help like you guy and gals. Thanks again Click here to see answer by stanbon(57308)

 Question 57764: 66. 3x^2-17x+10 (3x-1)(x^2-5) Tried to work it out don't know if this is the right answer I do not get how to doe these. Can you please check thank you very much I don't know what I would do with out such good help like you guy and gals. Thanks again Click here to see answer by Earlsdon(6287)
 Question 57764: 66. 3x^2-17x+10 (3x-1)(x^2-5) Tried to work it out don't know if this is the right answer I do not get how to doe these. Can you please check thank you very much I don't know what I would do with out such good help like you guy and gals. Thanks again Click here to see answer by funmath(2925)

 Question 57763: 14. 15t^2-17t-4 (5t-3)(t-4) Tried to work it out don't know if this is the right answer I do not get how to doe these. Can you please check thank you very much I don't know what I would do with out such good help like you guy and gals. Thanks again Click here to see answer by oberobic(2304)

 Question 57762: 104. -4w^3-16w^2+20w -2w(2w+2)(w-5) Tried to work it out don't know if this is the right answer I do not get how to doe these. Can you please check thank you very much I don't know what I would do with out such good help like you guy and gals. Thanks again Click here to see answer by funmath(2925)