Which of the following expressions is equivalent to a + (-b)
a. (-b) + a
b. b + (-a)
c. (-a) + b
d. none of the above
!

For this case we must find an expression equivalent to:

It is observed that the negative sign is associated with the variable "b". So, we have to express:

is equivalent to the initial expression but of different order.

Option A

i dont know sorry

step-by-step explanation:

square root of 36/6 = 2.449489743

square root of 16/6 = 1.632993162

square root of 6 = 2.449489743

the answer is square root of 16/6 because the square root of 36/6 is the same answer as square root of 6 = 2.449489743