Olivia has a box of 20
colored tiles. There are four types of colors including black, green, white, and yellow. There are
8
black tiles,
4
green tiles,
3
white tiles, and
5
yellow tiles. Olivia will pick a tile from the box without looking, record its color, and put it back in the box.

If Olivia does this
400
times, about how many times can she expect to pick a green tile?

∠acb = 8°

step-by-step explanation:

∠xba lies on the circle and is half the measure of the intercepted arc ax

hence

measure of arc ax = 2 × 42° = 84°

∠acb is outside the circle and is

∠acb = (arcab - arcax ), hence

∠acb = 0.5 (100 - 84) = 0.5 × 16° = 8°

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1

answer is b

step-by-step explanation: