Tutors Answer Your Questions about Quadratic Equations (FREE)
Question 168539: 3x^3+x^2-3x-1=0 (The ^3 and ^2 and exponents)
I have tried to factor and pull out the x but I am getting confused with the two different power. I got x=-1, x=-1/3 and x=1 but i dont think i need three answers
Click here to see answer by stanbon(57967)  |
Question 168648: This particular problem is a more of a quadratic function. I truly wish I could give you some of my calculations but nothing I put together makes sense. I have tried multiplying by the squared denominator, using the square root property but nothing is working! Any help is very much appreciated!!
"Solve each equation for the indicated variable".....
 Solve for R (E > 0)
E squared R is the numerator. (r+R) squared is the denominator.
Click here to see answer by stanbon(57967) |
Question 168648: This particular problem is a more of a quadratic function. I truly wish I could give you some of my calculations but nothing I put together makes sense. I have tried multiplying by the squared denominator, using the square root property but nothing is working! Any help is very much appreciated!!
"Solve each equation for the indicated variable".....
Solve for R (E > 0)
E squared R is the numerator. (r+R) squared is the denominator.
Click here to see answer by Alan3354(31518)  |
Question 168650: I apologize for having to ask two questions but they are the only two that I'm totally stumped on. I appreciate your help very, very much!! This also is a quadratic function.
"Solve each equation for the indicated variable"
 Solve for r
Click here to see answer by Alan3354(31518) |
Question 168650: I apologize for having to ask two questions but they are the only two that I'm totally stumped on. I appreciate your help very, very much!! This also is a quadratic function.
"Solve each equation for the indicated variable"
Solve for r
Click here to see answer by stanbon(57967) |
Question 168652: I just submitted a problem and left a very important segment out which altered it completely, I'm sorry!! No wonder no one could solve it, it was not a full function or equation. I sure appreciate your time but here is the REAL problem that I'm stuck on!! Thank you.
"Solve each equation for the indicated variable"
 Solve for R (E>0)
Click here to see answer by stanbon(57967) |
Question 168855: A rod of unknown length is used to measure the dimensions of a rectangular door. The rod is 4 ch'ih longer than the width of the door. The rod is 2 ch'ih longer than the height of the door, ad the same length as the door's diagonal. What are the dimensions of the door?
Click here to see answer by josmiceli(9817)  |
Question 169103: A 135-kg steer gains 3.5kg/day and costs 80 cents /day to keep. The market price for beef cattle is $1.65/kg, but the price falls by 1 cent /day. When should the steer be sold to maximize profit ?
I tried to make the profit equation for this problem but got confused when I tried to make the cost part of it , how do I make the profit equation?
Click here to see answer by scott8148(6628)  |
Question 169248: The height in feet for a ball thrown upward at 48 feet per
second is given by s(t)=-16t^2 +48 where t is the time
in seconds after the ball is tossed. What is the maximum
height that the ball will reach?
Thank you.
Click here to see answer by Earlsdon(6294) |
Question 169378: winter wheat: while finding the amount of seed needed to plant to plant his three square wheat fields, hank observed that the side of one field was 1 kilometer longer than the side of the smallest field and that the side of the largest field was 3 kilometers longer than the side of the smallest field. if the total area of the three fields is 38 square kilometers, then what is the area of each field?
Click here to see answer by Mathtut(3670) |
Question 169350: During the first part of a trip, a canoeist travels 90 miles at a certain speed. The canoeist travels 16 miles on the second part or the trip at a speed 5 mph slower. The total time for the trip is 5 hours. What is the speed on each part of the trip?
Click here to see answer by scott8148(6628) |
Question 169642: When solving this equation i am lost on the last step.Use the quadratic formula to solve the equation;  .I have used the problem solver but it doesn't show the math involved between the last two steps. Please help I am in a distance course and do not have access to an instructor.
Click here to see answer by Alan3354(31518) |
Question 169672: Hi, Here is my problem
Nancy walks 15 m diagonally across a rectangular field. She then returns to her starting position along the outside of the field. The total distance she walks is 36m. What are the dimensions of the field.
I have a good understanding of how to solve quadratic equations, but the word problems really confuse me. I made a diagram and used the pythagorean theorem to identify an equation, but it didn't factor in the end...Please help, if you could walk me through the steps that would be great
thanks
Click here to see answer by Mathtut(3670) |
Question 169672: Hi, Here is my problem
Nancy walks 15 m diagonally across a rectangular field. She then returns to her starting position along the outside of the field. The total distance she walks is 36m. What are the dimensions of the field.
I have a good understanding of how to solve quadratic equations, but the word problems really confuse me. I made a diagram and used the pythagorean theorem to identify an equation, but it didn't factor in the end...Please help, if you could walk me through the steps that would be great
thanks
Click here to see answer by jim_thompson5910(28715) |
Question 169606: Thomas is going to make an open-top box by cutting equal squares from the four corners of an 11 inch by 14 inch sheet of carboard and folding up the sides. If the area of the base is to be 80 square inches, then what size square should be cut from each corners?
Click here to see answer by scott8148(6628) |
Question 169705: This is one main word problem/question broken down into several questions. Post a response to the following: How do you know if a quadratic equation will have one, two, or no solutions? How do you find a quadratic equation if you are only given the solution? Is it possible to have different quadratic equations with the same solution? Explain. Provide your classmate’s with one or two solutions with which they must create a quadratic equation.
Click here to see answer by solver91311(17077)  |
Question 169618: 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 solver91311(17077) |
Question 169480: We are working on quadratic equations and I have no idea how to solve this. Here is the question: A rectangle has a perimiter of 52 feet and an area of 153 square feet. Find the dimensions fo the rectangle. I have tried to plug in the 2w+2L = 52. I factored out the 2 and divided it on both sides to get w=24-L. I tried to plug this in also. No luck. Please help me with a formula to solve.
Thanks
Shonnie
Click here to see answer by chiefman(11)  |
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