Answer asa which of the following sets are closed under addition? select all that apply. a) integers b) irrational numbers c) whole numbers d) polynomials

  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.

logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.