a, b, and c represent three different digits. If you add up all of the six two-digit numbers that can be written with these digits, where you don't use the same digit twice in the same number, then the sum will be 528. Find these digits.

When ∆rst is translated 4 units down, what are the apparent coordinates of t’? give 15 points

At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 16 cubic feet per minute. the diameter of the base of the cone is approximately three times the altitude. at what rate is the height of the pile changing when the pile is 12 feet high? (hint: the formula for the volume of a cone is v = 1 3 πr2h.)

Write the system of equations represented by the matrix. 0 1 2 4 -2 3 6 9 1 0 1 3