Kite DCFE is inscribed in circle A shown below: Kite DCFE is inscribed in circle A

If the measure of arc DEF is 266°, what is the measure of ∠DEF? (5 points)

Atoy company is considering a cube or sphere-shaped container for packaging a new product. the height of the cube would equal the diameter of the sphere . compare the volume to surface area ratios of the containers. which packaging will be more efficient? for a sphere, sa =4πr²

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?