Questions on Algebra: Quadratic Equation answered by real tutors!

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(paid link) Click here to see problems AND answers on one page Question 169895: Please help show me how to work this problem out..Thank you... solve equation using the quadratic formula 1/3x^2 + 2/9x - 1 = 0 Click here to see answer by gonzo(654)   Question 169892: Please show me the steps to doing this problem...I can't figure this one out Solve equation using the quadratic formula 4x^2 =2x + 1 Thank you very much Click here to see answer by jim_thompson5910(28715)   Question 169897: g(x)= x^3+4 what is the max number of zeros it can have and the max numberof turns Click here to see answer by SAT Math Tutor(36)   Question 169520: What is the temperature, in K, of 30.0 g of N2 gas at 2.25 atm, contained in a 550 mL vessel? (VII-1) ____K Click here to see answer by jojo14344(1512)   Question 169907: pleaseplease help with this question....i submitted this last night but had a few typos. ^2 means squared. i've tried putting these numbers into the quadratic formula but am having problems with coming up with a trinomial to start from When an object is released and falls freely, its height, h meters, above the ground after t seconds is represented by the relation h = -0.5t^2g+d, where g is the acceleration due to gravity and d is the initial height of the object before it is released. Since the strength of gravity varies from planet tp planet, the value of g is specific to each planet. Supposed a rock is dropped from a height of 100m on Mars and also Venus. On Mars, g=3.7m/s^2 and on Venus, g=8.9m/s^2. How long does it take the rock to fall to a height of 25m on each planet. Click here to see answer by Alan3354(31532)   Question 169908: (((75=(3.7t^2)/2}}} im not sure what this is supposed to mean...a tutor used it in one of my questions...ive been looking around the sight but it says the expression is unknown... ? Click here to see answer by stanbon(57967)   Question 169929: Solve the quadratic equation by completing the square: 3x^2+6x-4=0 Click here to see answer by jim_thompson5910(28715)   Question 169930: I can't seem to finish this problem :( Can someone plese help me so I can see what I am doing wrong?? Solve for x: (4/x^2-1)=(2/x-1)-(3/x+1) Click here to see answer by Alan3354(31532)   Question 169926: Two pipes drain a waste holding tank in 8.00h. If used alone to empty the tank, one takes two hours longer than the other. How long does each take to empty the tank if used alone. Click here to see answer by ankor@dixie-net.com(15746)   Question 169928: Perform the indicated operation: a) ((x^2+x-2)/x )/ (x+2)/x^2 b) (1/x-3)+((x-1)/(x^2+3x+9))+(x^2+x-3)/(x^3-27) Click here to see answer by maali40(13)   Question 169925: With an 18km/h tail wind a crow flies to a pond in 18 minutes. Find the crow's speed ( still in the air) if the return trip, with the head wind requires 46 minutes. Click here to see answer by Alan3354(31532)   Question 169949: This is a word problem on a worksheet that I've been given. Katy likes to catch butterflies. The equation b = -2(x-4)^2 + 25 models this habit, where b is the number of butterflies caught for the hour and x is the number of hours after she started catching. After how many hours will Katy catch the maximum amount? I am stumped on this question. I don't even know where to start... Please help, thanks. I also have some questions on a form of quadratic function. I've only done quadratic functions that are in the form y= ax^2 + bx + c. So I'm not quite sure on these 3 multiple choice questions. Here is the information: One form of a quadratic function is f(x) = a(x-b)^2 + c. Here are the questions: 1. If you wanted to shift the graph of the function up, what would you do? A. increase a B. decrease b C. increase c D. decrease a 2. If you wanted to shift the graph of the function left what would you do? A. increase b B. decrease b C. increase c D. decrease a 3. If you wanted to make the parabola wider, what would you do? A. increase a B. decrease b C. increase c D. decrease a ***Note: For question 1 I chose letter c. For question 2 I chose letter a. For question 3 I chose letter d. Click here to see answer by stanbon(57967)   Question 169984: Can you please show me how to solve this problem using the Square Root Porperty x^2 + 5 = 13 Click here to see answer by jim_thompson5910(28715)   Question 169983: Can you please show me how to work this equation out using the quadratic formula. w^2 - 5w + 5 = 0 Thank you very much Click here to see answer by jim_thompson5910(28715)   Question 169986: Can you please help show me how to solve this quadratic equation by completing the square w^2 - 5w = 14 Click here to see answer by jim_thompson5910(28715)   Question 169987: Can you please show me how to work this quadratic equation by completing the square x^2 + 4x - 12 = 0 Click here to see answer by jim_thompson5910(28715)   Question 169989: Can you please show me how to work this quadratic equation by completing the square a^2 - 4a + 5 = 0 Click here to see answer by jim_thompson5910(28715)   Question 169982: Can you please show me how to work this problem out, I am having trouble w / it. Solve the equation using the quadratic formula 1 = 3q^2 + 4q Thank you so very much Click here to see answer by jim_thompson5910(28715)   Question 169604: Debbie traveled by boat 5 miles upstream to fish in her favorite spot. Because of the 4-mph current, it took her 20 minutes longer to get there than to return. How fast will her boat go in still water? Click here to see answer by midwood_trail(310)   Question 170019: please help me solve this eqation 2x^2+11+5 Click here to see answer by jim_thompson5910(28715)   Question 169481: During the first part of a trip, a canoeist travels 37 miles at a certain speed. The canoeist travels 7 miles on the second part or the trip at a speed 5 mph slower. The total time for the trip is 4 hours. What is the speed on each part of the trip? Click here to see answer by ankor@dixie-net.com(15746)   Question 170116: I messed up on my last question, can you please show how to solve this quadratic equation by completing the square not sq. rt prop. m^2 = 8m + 3 Click here to see answer by nerdybill(7008)   Question 170115: Can you please show the steps of how to solve this quadratic equation by completing the Square Click here to see answer by Alan3354(31532)   Question 170113: Can you please show me the steps of how to solve this equation using the Square Root Property m^2 = 8m + 3 Click here to see answer by Alan3354(31532)   Question 170122: Please help me by showing me how to work out this equation using the Square Root Property 3x^2 = 8 Click here to see answer by Alan3354(31532)   Question 170121: Please show me how to work out this quadratic equation by completing the square m^2 = 8m + 3 Click here to see answer by jim_thompson5910(28715)   Question 170120: Please help show me how to solve the quadratic equation by completing the square z^2 + 8z +9 = 0 Click here to see answer by jim_thompson5910(28715)   Question 170111: Can you please show me the steps of how to solve this equation using the Square Root Property 3x^2 = 8 Click here to see answer by jim_thompson5910(28715)   Question 170146: How do you convert functions standard form to vertex form? Problem: y= x2-4x=6 Click here to see answer by stanbon(57967)   Question 170146: How do you convert functions standard form to vertex form? Problem: y= x2-4x=6 Click here to see answer by jim_thompson5910(28715)   Question 170212: I have tryed these four questions a few times each and have come up with dif answers each time!! I know that I am missing something and was wondering if you could help!! These are practice questions for an upcoming exam! I have to be able to get consistant answers!! Please help if you can!! Thank you.. (x^2 -3)^2 + (x^2 -3) -2=0 "^" indicates "squared" Click here to see answer by jim_thompson5910(28715)   Question 170212: I have tryed these four questions a few times each and have come up with dif answers each time!! I know that I am missing something and was wondering if you could help!! These are practice questions for an upcoming exam! I have to be able to get consistant answers!! Please help if you can!! Thank you.. (x^2 -3)^2 + (x^2 -3) -2=0 "^" indicates "squared" Click here to see answer by scott8148(6628)   Question 170211: Write a quadratic equation having each of the following solutions -1/2 and 3/4 Click here to see answer by jim_thompson5910(28715)   Question 170210: find three consecutive odd integers such that the squar of the thid integer plus the product of the other two integers is 268. Click here to see answer by nerdybill(7008)   Question 170220: square root sign 9x+67=x+5 (solve) Rewrite with a rational exponent small 6 square root sign 19. Convert to decimal notation 8.87*10^7. I had 8870000000. (I know this is incorrect) Use rational exponents to write xy small 5*y small 1|6 (1&6 are small numbers)*2 small 1|3 (1&3 are small numbers) I thank you in advance, for all your help. I am a student and I am in need of help. Click here to see answer by stanbon(57967)   Question 170220: square root sign 9x+67=x+5 (solve) Rewrite with a rational exponent small 6 square root sign 19. Convert to decimal notation 8.87*10^7. I had 8870000000. (I know this is incorrect) Use rational exponents to write xy small 5*y small 1|6 (1&6 are small numbers)*2 small 1|3 (1&3 are small numbers) I thank you in advance, for all your help. I am a student and I am in need of help. Click here to see answer by Edwin McCravy(8999)   Question 170236: solve by completing the square. 3x^2+12x-9=0 Click here to see answer by Alan3354(31532)   Question 170239: solve by using the quadratic formula x^2/2-x=3/4 Click here to see answer by Alan3354(31532)   Question 170240: solve using a graphing calculator x^2+x=-1/4 Click here to see answer by Alan3354(31532)   Question 170246: find the quadratic function whose vertex is (-1,5) and passing through the point (2,7) and graph the function. need answer before 12/1/08 Click here to see answer by nerdybill(7008)   Question 170246: find the quadratic function whose vertex is (-1,5) and passing through the point (2,7) and graph the function. need answer before 12/1/08 Click here to see answer by scott8148(6628)   Question 170244: find the quadratic function whose vertex is (-1,5) and passing through the point (2,7) and graph the function. need answer before 12/1/08 Click here to see answer by scott8148(6628)   Question 170286: I need help with this word problem I have tried and so has a tutor at school. Malikka takes a paddleboat 1km upriver against a 4km/hr current then returns downriver with the current, back to starting point. Her whole trip takes 2 hours, write a quadratic equation describing this situation. The unknown is the speed, v, that Mallika would paddle with no current present. Solve. What speed (in km/hr) would Mallika paddle by herself with no current present? Click here to see answer by stanbon(57967)   Question 170286: I need help with this word problem I have tried and so has a tutor at school. Malikka takes a paddleboat 1km upriver against a 4km/hr current then returns downriver with the current, back to starting point. Her whole trip takes 2 hours, write a quadratic equation describing this situation. The unknown is the speed, v, that Mallika would paddle with no current present. Solve. What speed (in km/hr) would Mallika paddle by herself with no current present? Click here to see answer by nerdybill(7008)   Question 170300: Hello, I tried to solve the equation 5(square root)x + 1 = 3 by doing 5(sq root) x = 3 and (5(sq. rt.) x) ^ 5 = 3^5 and I my answer is x=243. However, I'm not sure so can you help me please. Thank you Click here to see answer by checkley77(12569)

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