A math question?

Question

alright what is th I -9 I thing for example i hav a question

simplify
- I -9 I +3 I -6+10I

Answer 1

That symbol represents the absolute value. The absolute value of a non-negative number is equal to the number. The absolute value of a negative number is equal to the opposite of the number. Or, in other words, the absolute value of a number is equal to the number's distance from zero, and is always non-negative.

In your example, - I -9 I +3 I -6+10I = -(9) + 3|4| = -9 + 3*4 = -9 + 12 = 3.

Answer 2

3

Answer 3

The symbol | # | represents the absolute value of a number, or how far away that number is from zero.

For instance, |3| = 3 because +3 is three spaces away from zero on the number line. While |-5| = 5, because -5 is five spaces away from zero.

Basically, to find the absolute value of any number, drop its current sign and make it positive. So for your example:

-| -9 | + 3*| -6 + 10|
- (9) + 3* | 4 | Absolute value of -9 is nine
-9 + 3 * (4) Absolute value of +4 is four
-9 + 12
3

Answer 4

the lines "I I" indicate absolute value
therefore: - I-9I + 3 I- 6 + 10I= -9+3(4)
= -9+12
= 3

Answer 5

it means the absolute value. Any number that inside the absolute value sign will become a positive number
l-9l = 9

l-6 + 10l = l 4l = 4

- I -9 I +3 I -6+10I
- 9 + 3(4)
-9 + 12
3

Answer 6

The modulus symbol, | |, makes whatever is in it positive.
e.g. |-9| = 9

So,
- I -9 I +3 I -6+10I
= -9+3(5)
= -9+15
= 6

Answer 7

I would guess they are brackets???

--9+3-6+10 = 16

Answer 8

|x| is a function that:

f(x)=|x| =
x x>0
-x x<0