Aa linear system is consistent if and only if the rightmost column of the augmented matrix ▼ is not is a pivot column. that is, if and only if an echelon form of the augmented matrix has ▼ of the form [0 0 b] with b nonzero.

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest

What does independent variable and dependent variable mean in math?

Charlie tosses five coins.what is the probability that all five coins will land tails up.