Describe the solutions of the following system in parametric vector form :

x1-x2+x3 - x4 = 1,

x1-x2-x3 + x4 = 0,

x1-x2-2x3 +2x4 = -1\2

If n-9 is an even number what are the next three consecutive intergers

In right ∆abc shown below, the midpoint of hypotenuse ac is located at d and segment bd is drawn. if ab = 12 and bc = 16, then explain why bd = 10. hint: consider what you know about the diagonals of a rectangle.

Tabby sells clothing at a retail store, and she earns a commission of 6.25% on all items she sells. last week she sold a pair of jeans for $32.50, a skirt for $18.95, and 2 blouses for $14.95 each. what was tabby's total commission? a $4.15 b $5.08 c $81.35 d $348.60