If a ∥ b and b ⊥ y, then _
a ⊥ y.
x ∥ y.
x ⊥ a.
a ∥ y.

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

Consider the following estimates from the early 2010s of shares of income to each group. country poorest 40% next 30% richest 30% bolivia 10 25 65 chile 10 20 70 uruguay 20 30 50 1.) using the 4-point curved line drawing tool, plot the lorenz curve for bolivia. properly label your curve. 2.) using the 4-point curved line drawing tool, plot the lorenz curve for uruguay. properly label your curve.

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ac=26 and ch=8, find bh.