Let u = < 7, 2 > and v = < -3, 5 >, find 2u - 6v

Find the area of the regular hexagon if a side is 20 cm.

The measurement of one angle of a right triangle is 42° what is the measurement of the third angle? (there is no picture)

Solve for x in the equation x2 - 12x + 36 = 90. x= 6+3x/10 x=6+2/7 x= 12+3/22 x = 12+3/10