4/81 (?)
not sure if that is 100% correct
The formula for the volume of a sphere is V=(4/3) (pi) r^3. if r is doubled then you get 2r as the radius and V=(4/3) (pi) * 8r^3 so the volume is eight times bigger than the original r value. if r is tripled the r =3r and (3r)^3 so the volume is 27 times bigger. If r is multiplied by n the radius is nr and (nr)^3 =n^3 r^3, Therefore, the volume is n^3 times bigger than the original.
1/6 of 24 = 4
3/7 of 21 = 9
1/3 of 21 = 7
Answer:
1.89 and 1.91
Step-by-step explanation:
Answer:
5^3
Step-by-step explanation:
5^-2 * 5^5
We know that a^b * a^c = a^(b+c)
5^(-2+5)
5^3