Given a dilation with the origin o (0, 0), by observation determine the scale factor "k." do, k = (5, 0) (15, 0) what is the scale factor k? 1/3 3 -3

answer: a

step-by-step explanation:

if xy ~ yz therefore xy would be the same length as yz

the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing im pretty sure that is the right answer

step-by-step explanation: