Answer:
82.4 ft^3
Step-by-step explanation:
Diameter=5.4ft
Radius=diameter/2
=5.4ft/2
=2.7ft
π=3.14
Volume of a sphere=4/3πr^3
=4/3×3.14×2.7^3
=4/3×3.14×19.683
=4/3×61.80462
=247.21848/3
=82.40616
Approximately
82.4 ft^3
Question seem incorrect because 60%,50% and 20% sum up to more than a 100% therefore we've made a little correction
Answer:
0.8
Step-by-step explanation:
Probability = number of favorable outcomes/number of outcomes
Given that 30% are entertained by reading books
50% are entertained by watching TV
20% are entertained by reading books and watching TV
The probability that a person will be entertained by books or TV =
30/100+50/100= 3/10+5/10
=8/10
=0.8