Let a, b,c be real number such that: (-a/2+b/3+c/6)^3 + (a/3 + b/6 - c/2)^3 + ( a/6 - b/2 + c/3 )^3 = 1/8
Prove that: ( a- 3b + 2c)( a2 + b - 3c )( -3a + 2b +c ) = 9

Marie drew the triangle shown. she wants to draw a second triangle that is different from this one. use the drop-down menus below to complete the statements about the second triangle.

What is not true about kl and mn? what is mn? (show )

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