Tutors Answer Your Questions about Quadratic Equations (FREE)
Question 416358: help me with this question. the directions are slove each equation by graphing. If integral roots cannot be found, estimate the roots by stating the consecutive integers between which the roots lie. The question is X^2 + 7x + 9.
Click here to see answer by josmiceli(19441)  |
Question 416744: Quadratic equations can be solved by graphing, using the quadratic formula, completing the square, and factoring. What are the pros and cons of each of these methods? When might each method be most appropriate? Which method do you prefer? Why?
Click here to see answer by lwsshak3(11628) |
Question 417052: Ok so in algebra today we learned like 2 days ago the QUADRATIC FORMULA...well i just dont understand how to solve it. for ex.
I dont understand how to do the steps to get the answer
so i do x=-4+/-=sqrt (4)^2-4(3)(-8)
then x= +/-+sqrt 16-96/ 2x3
i dont know where to go from there.
Click here to see answer by checkley79(3341) |
Question 417052: Ok so in algebra today we learned like 2 days ago the QUADRATIC FORMULA...well i just dont understand how to solve it. for ex.
I dont understand how to do the steps to get the answer
so i do x=-4+/-=sqrt (4)^2-4(3)(-8)
then x= +/-+sqrt 16-96/ 2x3
i dont know where to go from there.
Click here to see answer by Earlsdon(6294) |
Question 417627: Two young boys, Bob and Tom, are mowing grass one summer as a means of making money to save for their college education. They always split the work and proceeds equally. They have one lawnmower. They obtain a new job which involves mowing a 40' by 80' rectangular vacant lot. The owner wants it mowed in a collapsing pattern (begin mowing around the outside perimeter, with each pass moving closer to the center of the lot). Bob will mow first, turning the work over to Tom when he has mowed exactly half the area. Bob decides that he will stop at a uniform distance in from the perimeter on all sides, leaving a remaining rectangle for Tom to complete. At what uniform distance (in feet to 2 decimal places) should Bob stop mowing? Solve by creating and solving a quadratic equation.
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 417935: a farmer has $2400 to spend to fence two rectangular pastures. the local contractor will build the fence at a cost of $6.25/m what is the largest total area that the farmer can have fenced for that price ?
Click here to see answer by rfer(16322) |
Question 417966: Kelly has a collection of nickels, dimes, and quarters with a total value of $7.30. There are five more nickels than dimes and twice as many quarters as nickels. How many of each coin is in her collection?
? nickels
? dimes
? quarters
Click here to see answer by mananth(16946)  |
Question 417978: I need sorry help with this problem: Find the perimeter
3c^2-+12c-8 left side of perimeter|_\ right side of perimeter 126^2-8c+9
c-5 this is the bottom of the perimeter
What is the perimeter
Please someone help. I have tried all day to figure this out. Sorry that I could not make a better perimeter.
Thank you for your help:)
KB
Click here to see answer by stanbon(75887) |
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