Question

If a = -4.6, then what is the value of -a?

Answer 1

Explanation:

-a is = -1 * a

Therefore, let us multiply the whole expression by -1

`-1[a=-4.6]\\(-1)(a)= (-4.6)(-1)\\-a=4.6`

Answer 2

The notation "-a" in math means "the opposite of a." Therefore, whatever the value of a is, we are supposed to give for answer what the opposite of the number is.

In our case since a = -4.6, its oposite is the number that resides on the opposite side from zero at the same distance that -4.6 is from zero, and that is the number + 4.6