| -1 - 3| = ?
asking for a friend

Step-by-step explanation:

| -1 - 3| = |-4|=4

Hope it helps you

4

Step-by-step explanation:

first you simplify, so -1-3=-4.

|-4|

the absolute value of negative four is just four with all signs removed (in this case, negative sign)

4

just take the area of the square and then the area of the circle then subtract the circle area from the squares area

step-by-step explanation:

step-by-step explanation:

one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.