Height always be positive .
Absolute value:-
Answer:
undersea trench
Step-by-step explanation:
Absolute value is the distance from zero
The highest mountain trench is |29028| or 29028 ft from zero
The lowest under sea trench is | -35840| of 35840 ft from zero
The highest absolute value is the undersea trench
2b+9
Twice the quantity b is 2*b = 2b
...and then you add 9 which is:
Radius is 16, that’s all I know
Answer:12.72