# Questions on Algebra: Quadratic Equation answered by real tutors!

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

 Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations! Ad: Mathway solves algebra homework problems with step-by-step help!

## Tutors Answer Your Questions about Quadratic Equations (FREE)

 Question 534075: The difference of square of 2 number is 180. The square of smaller number is 8 times the larger number. Find the two numbers. Click here to see answer by boilpoil(127)

 Question 534025: A square sign must have a perimeter of no more than 225 inches. what lengths are acceptable for the sides of the sign? Click here to see answer by fcabanski(1133)

 Question 534159: Um grupo de paraquedistas salta de um aviγo a uma altura de 6 000 m. Ao chegarem ΰ altura de 3 000 m, eles devem abrir seus paraquedas. Com base nisso respondam : a)Quanto tempo depois de saltarem, os paraquedas devem ser abertos? b)Um dos paraquedas consegui abrir somente em 26,5 segundos depois de saltar. A que altura isso ocorre? Atenηγo!!! Ajuda que vem do cιu! Use a fσrmula d = 5t2, ( t=tempo em segundos e d= altura em metros me chamou de puta e mais ........... resolva essa questao ai do paraqueda Click here to see answer by KMST(2478)

 Question 534253: How do you write m^6-16m^3+64=0 in quadratic form? Click here to see answer by fcabanski(1133)

 Question 534401: Find the vertex the line of symmetry, the maximum or minimum value of the f(x). Graph the function. f(x)= -(x+3)^2-9 Click here to see answer by oberobic(2304)

 Question 534399: Find the vertex the line of symmetry, the maximum or minimum value of the f(x). Graph the function. f(x)= 1/4(x+2)^2+4 Click here to see answer by oberobic(2304)

 Question 534397: Find the vertex the line of symmetry, the maximum or minimum value of the quadratic function, and graph the function. f(x)= -2x^2+2x+10 Click here to see answer by oberobic(2304)

 Question 534459: List all possible rational zeros for the polynomial below. Find all real zeros of the polynomial below and factor completely. Please show all of your work. f(x) = 3x^4+17x^3+17x^2-33x-36 Click here to see answer by lwsshak3(7679)

 Question 534558: twice the price of a bike increased by 26 is 57. what is the price of the bike? Click here to see answer by nerdybill(7090)

 Question 534744: The formule D=0.054x^2+0.058x describes the distance in feet D that it takes to stop a vehicle traveling x miles per hour on dry pavement. a. How fast can you drive if you wish to be able to stop your car within 65 feet? b.On black ice, a truck's stopping distance is 3 times its stopping distance on dry pavement. A truck traveling 20 miles per hour applies the brakes, on black ice, at a distance of 65 feet in front of a rubber traffic cone. Will the truck hit the cone? Click here to see answer by stanbon(60774)

 Question 534835: y =2x^2-12x-20 Is The Equation, And I Don't Understand How To Find The Answer Click here to see answer by fcabanski(1133)

 Question 534991: h(x)=x^2+4 Click here to see answer by fcabanski(1133)

 Question 535545: Write the polynomial equation m^6 + 5m^3 - 10 = 0 in quadratic form. How do I do that^^? Please Help! Click here to see answer by fcabanski(1133)

 Question 535554: Jeremy is putting together a model rocket. The scale is 1 cm : 50 ft. If the height of the actual rocket is 210 feet, how tall is the model? Click here to see answer by fcabanski(1133)

 Question 535550: I have a problem that starts with this equation: x^2-2x-3=0 The next part of the equation is to move the constant to the right side of the equation. x^2-2x-3+3=0+3 x^2-2x=3 x^2-2(x)=3 x^2-2+2x=3+2 x=5 Click here to see answer by fcabanski(1133)

 Question 535546: hello my question is how can i solve this 36y^3-y=0 thank you. Click here to see answer by mananth(13127)

 Question 535704: how do you factor t^5 - 29t^3 + 100t?? Click here to see answer by Earlsdon(6294)

 Question 535691: Please help me solve these: 2x^2-x-28=0 x^2-2x=15 2x(x+7)(x+4)=0 x(x-5)=-6 x^2=16x Click here to see answer by Earlsdon(6294)

 Question 535975: How do I figure out "G" in :G(x)=10+3 ? Click here to see answer by edjones(7794)

 Question 535920: The difference between two positive numbers is 5.Their product is 104.Find the numbers. solve and check. Click here to see answer by edjones(7794)

 Question 535774: How to use the quadratic formula to solve for Q in the equation Q(squared)-2Q-4=0. Click here to see answer by KMST(2478)

 Question 535981: One solution of kx^2-5x+k=0 is 3. Find the other solution Click here to see answer by bucky(2189)

 Question 536073: how can i complete the square with: x^2-10x=11 my answer, (-10x/2)^2 =11 was wrong. Click here to see answer by nerdybill(7090)

 Question 536074: How can i complete the square with : 2k^2 + 4k-10=0 my answer was 5, it's obviously wrong... help plz! thank you Click here to see answer by nerdybill(7090)

 Question 535805: A piggy- bank contains 50 coins, all either 2 cents or 5 cents. The total value of coins is \$1.87. How many 2 cents coins are there? Click here to see answer by april4869(19)

 Question 536098: Factor each expression completely 4. x2  13x + 42 (1 point) (x + 6)(x  7) (x  6)(x + 7) (x  6)(x  7) (x + 6)(x + 7) 5. 64x2 + 144x + 81 (1 point) (8x  9)2 (8x + 9)2 2(8x + 9) (8x + 9)(8x  9) 6. 3x2 + 5x  50 (1 point) (x  25)(3x + 2) (3x  25)(x + 2) (x  10)(3x + 5) (3x  10)(x + 5) 7. 5k2  125 (1 point) (k  5)2 5(k  5)2 (k + 5)(k  5) 5(k + 5)(k  5) 8. 15n2  8n +1 (1 point) (5n + 1)(3n + 1) (5n  1)(3n  1) (5n + 1)(3n  1) (5n  1)(3n + 1) Click here to see answer by Alan3354(34677)
 Question 536098: Factor each expression completely 4. x2  13x + 42 (1 point) (x + 6)(x  7) (x  6)(x + 7) (x  6)(x  7) (x + 6)(x + 7) 5. 64x2 + 144x + 81 (1 point) (8x  9)2 (8x + 9)2 2(8x + 9) (8x + 9)(8x  9) 6. 3x2 + 5x  50 (1 point) (x  25)(3x + 2) (3x  25)(x + 2) (x  10)(3x + 5) (3x  10)(x + 5) 7. 5k2  125 (1 point) (k  5)2 5(k  5)2 (k + 5)(k  5) 5(k + 5)(k  5) 8. 15n2  8n +1 (1 point) (5n + 1)(3n + 1) (5n  1)(3n  1) (5n + 1)(3n  1) (5n  1)(3n + 1) Click here to see answer by april4869(19)

 Question 536196: an express train and local train leave vancouver at 3pm and head for hope 180 kms away. the local train travels two thirds as fast as the express train and arrives 1 hour after the express train. what time does thelocal train arrive in hope? i have so far LOCAL: D = R x T 180=2/3R x T+1 EXPRESS: D = R x T 180= R x T LOCAL: T=180/ 2/3r -1 EXPRESS; T=180/R I DONT KNOW WHAT THE LCM IS FOR 2/3R AND R ...IS IT 1 2/3 R ? OR r(2/3r)>?< Click here to see answer by josmiceli(10616)

 Question 536262: The roots of a cubic are x=-2,x=3, and x=5. What arethe possible factors of the cubic? Explian your reasoning Click here to see answer by KMST(2478)

 Question 536166: Please help me solve this problem! thank you! solve each quadratic equation : 16v^2 = 49 or 15s^2 - 8s - 12 = 0 either problem would be a great help! thanks Click here to see answer by lwsshak3(7679)

 Question 536334: what is the ordered pair for 10x - 7y = -6 5x + 7y = 81 Click here to see answer by april4869(19)

 Question 536385: Formula D=0.054^2+0.058x describes the distance in feet D that it takes a vehicle traveling x mph to stop on dry pavement. A. How fast can you drive if you wish to be able to stop within 65 feet? I have it started with 0.054x^2+0.058x=65. How do I proceed from here?? Please help! Click here to see answer by lmeeks54(108)

 Question 536430: How do you solve this, step by step?   1   -     1           ___       ___      =  2 x+3        x-3 * in simplified radical form Click here to see answer by Alan3354(34677)

 Question 536440: 2(8x+1)^2=90 Solve using quadratic formula Click here to see answer by Maths68(1474)

 Question 536439: x^4-9x^2+8=0 Click here to see answer by edjones(7794)

 Question 536437: Solve using Quadratic Formula 5x^2+8x-3=0 Click here to see answer by mananth(13127)

 Question 536497: the solution of the quadratic equation (15x squared+44 x-3=0) by factorization Click here to see answer by Earlsdon(6294)

 Question 536527: Please help!!! What quadrant has the solution set to the system x≥0 and y≥0? 1)I 2) II 3) III 4) IV Click here to see answer by jim_thompson5910(29613)

 Question 536583: Solve using the Quadratic Formula: x^2 + 4x + 6 = 0 Click here to see answer by jim_thompson5910(29613)

 Question 536603: A piece of wire is 8 inches long. The wire is cut into two pieces and then each piece if bent into a square. Find the length of each piece if the sum of the areas of these squares is to be 2 square inches. square 1: x/4 by x/4 square 2: 8-x/4 by 8-x/4 Click here to see answer by fcabanski(1133)

 Question 536600: A person standing cloes to the edge on the top of a 200-foot building throws a baseball vertically upward. The quadratic function s(t)=-16t^2+64t+200 models the ball's height above the ground, s(t), in feet, t seconds after it was thrown. A)After how many seconds does the ball reach it's maximum height? What is the maximum height? B)How many seconds does it take until the ball finally hits the ground? Click here to see answer by Alan3354(34677)

 Question 536598: The instructions say solve each equation by factoring, by taking square roots, or by graphing. When necessary,round your answer to the nearest hundredth. The first problem is x^2-18x-40=0 Click here to see answer by Alan3354(34677)
 Question 536598: The instructions say solve each equation by factoring, by taking square roots, or by graphing. When necessary,round your answer to the nearest hundredth. The first problem is x^2-18x-40=0 Click here to see answer by fcabanski(1133)

 Question 536619: using the quadratic formula x=[-b(+-)sqrt(b^2-4ac)]/2a solve quadratic equation x^2 -5 = 0 Click here to see answer by jim_thompson5910(29613)

 Question 536618: The population of fruit flies,p,after day from the first mating of ten flies is given by the function p(n)=0.08x^2+0.11x. Find the population of fruit flies after. Click here to see answer by fcabanski(1133)