The absolute value of -12.5 is?
|-12.5| = 12.5
The absolute value of a negative number is the number that is exactly opposite on the number line, being a positive number. A positive number's absolute value is always the same thing, positive. Examples:-
|10| = 10
|-10| = 10
|-8.5| = 8.5
|8.5| = 8.5
|-12.5| = 12.5
An hour and 15 minutes. Since Joe is driving 20 miles per 1/2 hour that means he is driving 40 miles every hour. We still have 10 miles left and since 20 divided by 2 is ten you would simply cut the time it takes him to drive 20 miles in half making 15 minutes. Then you add the time it takes to drive 40 miles and 10 miles and that's how you get an hour and 15 minutes. Hope this made sense!
904.32 is the volume.
Volume of sphere
= (4/3)πr³
= (4/3) × 3.14 × (6cm)³
= (4/3) × 3.14 × 6cm × 6cm × 6cm
= 4 × 3.14 × 2cm × 6cm × 6cm
= 904.32 cm³
