If θ is a second-quadrant angle and cosθ = -2/3, then tanθ =

1. the wheeling bridge in west virginia is about 307 meters long. if you walk with a stride of about meter, about how many steps would it take you to cross this suspension bridge?

Find the area of a parallelogram with base 15 yards and height 21 2/3

In trapezoid abcd, ac is a diagonal and ∠abc≅∠acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.