Question

|5x-9|​

Answer 1

Ответ:

i don't now...................................

Answer 2

The expression |5x - 9| represents the absolute value of the quantity 5x - 9. The absolute value of a number is its distance from 0 on the number line, so it's always non-negative.

If 5x - 9 is positive or zero, then |5x - 9| = 5x - 9. If 5x - 9 is negative, then |5x - 9| = -(5x - 9), which simplifies to -5x + 9.

So, |5x - 9| can be expressed as a piecewise function:

|5x - 9| = { 5x - 9 if 5x - 9 ≥ 0 (when 5x ≥ 9) -(5x - 9) if 5x - 9 < 0 (when 5x < 9) }

It's important to note that without additional context or a specific value for 'x', we cannot simplify this expression further. Depending on the value of 'x', you would either use 5x - 9 or -(5x - 9) to represent |5x - 9|.