Tutors Answer Your Questions about Quadratic Equations (FREE)
Question 20906: I have been asked to solve the equations simultaneously, and i believe one of them to be a quadratic equation, and so am stuck - please can you help me?
x-y=3
2
x -10y-6=0
P.s. If you could show me how to achieve the answer, possibly it would help me understand it?
Thankyou so much.
Click here to see answer by venugopalramana(3286)  |
Question 23342: It cost Acme Manufacturing C dollars per hour to operate its golf ball division. An analyst has determined that C is related to the number of golf balls produced per hour, x, by the equations C = 0.009x^2 - 1.8x + 100. What number of balls per hour should Acme produce to minimize the cost per hour of manufacturing these golf balls?
Click here to see answer by stanbon(75887) |
Question 23392: Thank you in advance for you help with this equation. I really appreciate it.
Question 1
The total profit (in dollars) for sales of x rowing machines is given by P(x) = -0.2x^2 + 300x - 200. What is the total profit if 500 are sold? For what value of x will the profit be at a maximum?
Question 2
Solve the equation by using the quadratic equation.
y^2 + 6y + 4 = 0
Question 3
Solve the equation
b+17/b^2-1 - 1/b+1 = b-2/b-1
Click here to see answer by stanbon(75887) |
Question 23343: Thank you in advance for helping me with the following problems. I am struggling with these and they are due tonight by midnight. So any help given would be appreciated.
We are working with quadratic equations, functions and inequalities with graphing.
1. 5x - 10x^2 < 0 Solve each inequality, state the solution set using interval notation and graph the solution set.
Click here to see answer by stanbon(75887) |
Question 20880: 1. SOLVE USING THE SUBSTITUTION METHOD.
x + y = 1
x - y = -3
2. Evaluate the determinant along row 1
a b
b a
3. Given matrix A, find the minor of the indicated element.
element: a 12
-2 -1 0
6 5 1
5 4 4
4. Determine the order of the matrix.
9 5 -3
-4 6 1
Click here to see answer by venugopalramana(3286) |
Question 23541: I have 2 series,
x 1,2,3,4,5,6,7,8,9,10,11,12
y 85,60,160,140,235,200,270,200,225,100,60,-140
What is the quadratic equation for above series ?
Thanks,
Click here to see answer by stanbon(75887) |
Question 23538: I have two problems that I just can't seem to get worked out. I submitted one before but the wrong numbers were used in the equation by the solver. These problems are due tonight by midnight. Any help give will be gravely appreciated.
Question 1
5x - 10x^2 < 0
Question 2
x^2 - x > 0
Solve the inequality, state the solution set in inteval notation and graph it.
Click here to see answer by stanbon(75887) |
Question 23687: Please help me solve the following quadratic equation. Any help or guidance you offer is greatly appreciated because I am very confused with these types of problems.
Find the vertex and intercepts for each quadratic function, and graph.
y = -x^2 + 2x + 3
Thank you
Click here to see answer by Earlsdon(6294) |
Question 23687: Please help me solve the following quadratic equation. Any help or guidance you offer is greatly appreciated because I am very confused with these types of problems.
Find the vertex and intercepts for each quadratic function, and graph.
y = -x^2 + 2x + 3
Thank you
Click here to see answer by venugopalramana(3286) |
Question 23670: Hi, I am really having a hard time analyzing this one, I hope someone could help me on this and I would really really appreciate it so much.
Question 1 : Explain a sequence of steps that can be used to solve any quadratic equation in the QUICKEST WAY.
Question 2 : Derive the quadratic formula used in solving quadratic equations.
Click here to see answer by Earlsdon(6294) |
Question 23670: Hi, I am really having a hard time analyzing this one, I hope someone could help me on this and I would really really appreciate it so much.
Question 1 : Explain a sequence of steps that can be used to solve any quadratic equation in the QUICKEST WAY.
Question 2 : Derive the quadratic formula used in solving quadratic equations.
Click here to see answer by venugopalramana(3286) |
Question 23801: The combined area of a square and a rectangle is 64 square centimeters. The width of the rectangle is 2 cm more than the length of a side of the square and the length of the rectangle is 2 cm more than its width. Find the dimensions of the square and the rectangle.
thanks a lot.. i'll really appreciate it if someone answered this one..
thanks again..
Click here to see answer by venugopalramana(3286) |
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