Answer:
A, C, D
Step-by-step explanation:
The sum of two irrational numbers may be rational:
√2 + (-√2) = 0
so that set is not closed under addition.
___
For any of the other sets, addition of two members of the set always results in another (not necessarily different) member of the set.
The answer will be D) 4,-6
Answer:
748 in^3.
Step-by-step explanation:
This consists of a triangular prism and a rectangular cuboid .
Volume of the prism = .1/2 * 8 *11 * 17 = 748 in^3
Volume of the cuboid = 5*8*17 = 680 in^3
Therefore the volume of the whole figure
= 680 + 748 = 1428 in^3.
Its D. -18 hope this helps :D
