Recent content by kdubb22

Wow my row reductions posted really off. If you just space over the bottom ones, each bracket set goes with its corresponding one above. Sorry about that!

Thank you for your response! Yeah the first part of the problem was to find the value of k that made the system have no solution. I found it to be k=-4.5. This is where I'm stumped. I start working through the matrix but when I get to the step where I have to convert k into 1 I don't know how...

Given the system of equations in x and y: 2x-3y=12 3x+ky=10 Could you choose k so the system had infinitely many solutions? If so, give k. If not, why not? I'm pretty sure that it CAN have infinitely many solutions because the number of equations is equal to the number of...

Help with an investment matrix word problem! Can anyone give me the 3 equations in general form that I need to solve this matrix? A person will put 30% of his investment into a stock fund that earns a 9% annual rate of return. He will put 20% in precious metals currently growing at 40% and...