Factor the gcf: 21x3y4 + 15x2y2 − 12xy3.

3xy(7x2y3 + 5x − 4y)
3xy(7x2y + 5x − 4y2)
3xy2(7x2y + 5x − 4y)
3xy2(7x2y2 + 5x − 4y)

most gets

Which system of linear inequalities is represented by the graph? x-3y > 6 and y? 2x + 4 x + 3y > 6 and y? 2x - 4 x - 3y > 6 and y? 2 - 4 x + 3y > 6 and y > 2x + 4 no be 2 -1.1 1 2 3 4 5 submit save and exit next mark this and retum be

What is the radical expression that is equivalent to the expression 27 1 over 5?

Acentral angle measuring 160 degrees intercepts an arc in a circle whose radius is 4. what is the length of the arc the circle formed by this central angle? round the length of the arc to the nearest hundredth of a unit. a) 4.19 units b) 6.28 units c) 12.57 units d) 12.57 square units