The value of V-4 is not -2 because . A.
(-2)2 -4

B.
22 -4

C.
(-4)2 -2

D.
42 -2

9514 1404 393

  A

Step-by-step explanation:

The correct choice is marked.

The square of the square root is the number being rooted. -2 is not the square root of -4 because it square (-2)² is a positive number, not equal to -4.

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.