Solve the system of equations with three variables using Gaussian.
5x – 4y + 2z = 21
-x - 5y + 6z = -24
-x– 4y + 5z = -21

Find the distance between (0,5) & (-4,2)

Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 4 p plus 4 x plus 2 pxequals56. suppose also that p and x are both functions of time, measured in days. find the rate at which x is changing when xequals2, pequals6, and startfraction dp over dt endfraction equals1.5.

Which of the following is closest to 32.9 x 7.5? a: 232 b: 259 c: 220 d: 265