Find the solution for the following system: 2x - 5y = 0 x + 3y = -1 by using: a. row reduced echelon form b. by finding the inverse of the associated matrix.

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2