Jimmy pumps 288,000 cubic centimeters of air into a spherical balloon. What is the radius of the balloon?

r ≈ 45. 10 cm

Step-by-step explanation:

Jimmy pumps 288, 000 cm³ of air into a spherical balloon. The radius can be found by using the volume of a sphere formula.

volume of a sphere = 4/3πr³

where

r = radius

volume = 288000 cm³

288000 = 4/3 × π × r³

288000 = 4/3 × 3.14 × r³

12.56r³ = 288000  × 4

12.56r³ = 1152000

divide both sides by 12.56

r³ = 1152000/12.56

r³ = 91719.745223

r = ∛91719.745223

r  = 45.0976882 cm

r ≈ 45. 10 cm

three-fourths of an hour

36÷48=0.75

0.75=

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.