How do you solve: 3/4n-18=1/4n-4

What basic trigonometric identity would you use to verify that sin x cos x tan x =1-cos^(2)x?

Adriveway is 60-feet long by 6-feet wide. the length and width of the driveway will each be increased by the same number of feet. the following expression represents the perimeter of the larger driveway: (x + 60) + (x + 6) + (x + 60) + (x + 6) which expression is equivalent to the expression for the perimeter of the larger driveway? a) 2(x + 66) b) 4x + 33 c) 4(x + 33) d) 4(x + 132)

The graph shows the distance kerri drives on a trip. what is kerri's speed?