Recent content by Corkery

So, I was recently think about something. Don't ask me how I thought of this, but positrons and anti-protons were on my mind all day and I thought of something. I thought about inertia. I thought about it and the more and more I did I figured that there must be something within matter that makes...

Homework Statement Simplify: 2csc^2 - csc^4 + cot^4 Homework Equations The Attempt at a Solution 2(1/sin^2) - 1/sin^4 + cos^4/sin^4 So here, i figured that if i re-write them, that maybe it will leave me more options, but I don't see anything that will cancel out. Then i...

Homework Statement Mnimize and maximize: P=30x + 10y Subject to 2x + 2y > or = 4 6x + 4y < or = 36 2x + y < or = 10 x, y > or = 0 Homework Equations The Attempt at a Solution How would I go about graphing this on my calculator: 2x + 2y > or = 4...

yeah but when you plug that in how do you know what to plug for the variables to get the correct number for the variable. You could be plugging in two numbers that give you remainder of 0 but don't give you what the actual value of the variable unless you get 0 on the other root also. Is there a...

yes, but that means you can plug in any two sets of numbers that work and they they ARE equal to those varibles when they really arent.

can you please explain into further depth in such a way that I will understand? Please.

ok now its ok to re-read. Sorry for any inconvenience.

the roots they give you are (x-1) and (x-2). Does that make a difference or would I continue to do what you said. Oh actually now that I think about it, I completely messed up on a few things.

Homework Statement My friend and I were having trouble with an equation, but I don't have the exact one with me so I will write one that is similar and is the same concept: Equation: x^4 + 2x^3 - 9x^2 - ax + b So basically they want you to find the two missing variables in the 4th degree...

oh sorry. In my book that section says "complex roots" but next time I will try my best to label it appropriately.

thanks.

Homework Statement State the number of complex roots and then identify what the roots are. Equation: 18x^2 + 3x -1 = 0 Homework Equations The Attempt at a Solution There are 2 complex roots. Okay. So I can't factor anything out of the equation and when you try to factor it...

[SOLVED] Compex roots Homework Statement state the number of complex roots of each equation, then find the roots and graph the related function. x^2 + 25 = 0 Homework Equations The Attempt at a Solution x^2 + 25 = 0 so there are 2 complex roots. Once I have established that...

ok thanks a lot. that really does help a lot. My tutor also pointed out some of my mistakes, but with the combination of that and this I'm very clear on the subject. thanks again

Homework Statement 6x^3 - 3x^2 - 45x Homework Equations The Attempt at a Solution -first factor out 3x 3x(2x^2 - x -15) 2 x 5 = 30 so... 3x(2x^2 + 5x - 6x - 15) -separate the equations 3x(2x^2 + 5x)( - 6x -15) -simplify a few things. 3x^2(2x + 5) -3 (2x + 5)...