Find m∠1 and m∠3 in the kite. The diagram is not drawn to scale.

Angle 1 = 39 degrees because it is equal to it's opposite adjacent angle which is labeled 39 degrees.  The angle opposite angle 2 is 90 degrees. Angle 3 is 51 degrees

Step-by-step explanation:

Triangle = 180 degrees

                -39 degrees Angle given

                -90 degrees Angle known

                =51 degrees Angle 3

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form