Aset x consists of all real numbers greater than or equal to 1. use set-builder notation to define x.

Step-by-step explanation:

A set builder notation is used to build or describe the set.

In the given question, there are two conditions on elements of set X that must be satisfied i.e.

For all x belongs to the set of real numbers i.e. .

For all x

b. 24 mm

step-by-step explanation:

use the pythagorean theorem.

a^2 + b^2 = c^2

a^2 + 7^2 = 25^2

a^2 + 49 = 625

a^2 = 576

a = 24

answer: b. 24 mm