Calculate the perpendicular
height of the triangle
pls helppp!!

If 90° < θ < 180° and cotθ = -1/3, then cscθ =

What is the size of the matrix resulting from

Liz is shipping a package to her friend.the maximum weight of a medium flat-rate box is 20 pounds,including the box which weighs 6 ounces.write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.