What is the circumference of this circle? use π ≈ 3.14. round your answer to the nearest tenth of a centimeter.

a.
40.8 cm

b.
132.7 cm

c.
81.6 cm

d.
20.4 cm

Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?

Which is a true statement about an exterior angle of a triangle a. it is formed by two segments that are not sides of the triangle, b. it forms a linear pair with one of the interior angles of the triangle, c. it is complementary to one of the interior angles of the triangle. d. it is formed by two segments that are sides of the triangle.

Will give brainliest immeadeately true or false: the origin woud be included in the solution set for the inequality: y< 2x-5