Which of the following sets are closed under division? select all that apply. integers irrational numbers whole numbers polynomials none of the above

None of the Above

Step-by-step explanation:

Integers:

Take

Here,

Since is not an integer , integers are not closed under division .

Irrational Numbers:

Take

Here,

Since is not an irrational number , irrational numbers are not closed under division.

Whole Numbers:

Take

Here,

Since is not a whole number, whole numbers are not closed under division.

Polynomials:

Take two polynomials as

Here, is not defined.

Since is not a polynomial, polynomials are not closed under division .

So, the correct option is none of the above

then, the surface area of the sphere shown in the image is: 256π sq. units!

step-by-step explanation:

the lateral surface area of a sphere is 2πrh where h=2r.

then:

surface area = 4πr^2.

in this case, r=8 units ⇒ surface area = 4π(8 units)^2. = 256π sq. units!

then, the surface area of the sphere shown in the image is: 256π sq. units!