sqrt(7) can be multiplied by 0 and sqrt 7 to become rational.
A and D
Answer:

Step-by-step explanation:

U take half of the x term and square it....then add to both sides
14/2 = 7.......7^2 = 49...so u add 49 to both sides
The volume of a cube = length x width x height. Since they told us this box has a square base, the length and width are both 18 inches.
V = 18 x 18 x 16
V = 5184 cubic inches or in^3
Answer:
f(x) = x-6
Step-by-step explanation:
Since x = 6, which is a positive number, the answer should be of f(x) = x-6.
When x = -6, which is a negative number, then the answer should be f(x) = x+6.