Question

Plz hep me Use 1.9 as the radius for the sphere

Answer 1

The formula for the sphere: (exact)

4/3πr³

4/3π(1.9³)

4/3π(5.7)
 
7.6π³

(approximate)
4/3π(1.9³)

4/3π(5.7)
 
7.6π³
 
7.6(3.14)

=23.864³

Answer 2

Well what i was taught that first you multiply 2 and 3.14 which equals 6.28 and then you multiply 6.28 with 1.9. HOPE THAT HELPED