What is the volume of the hemisphere ?

1526.04

Step-by-step explanation:

Volume of sphere = 4/3πr³

Volume of hemisphere = 2/3πr³

Diameter = 18

Radius (r) = 18 ÷ 2 = 9

2/3πr³

2/3(3.14)(9)³

2/3(3.14)(729) = 1526.04

solution:

as, mean is defined as sum of all the observations divided by total number of observations.

and , median is mid value of the data whether arranged in ascending order or descending order.

consider, roadsters:

2,3,4,5,6,7,8,9

mean =

also, median= , because number of observations is even, so median is mean of two mid values.

now, coming to bandits

2,3,4,5,6

mean =  

median = 4, as number of observations is odd.

so, roadsters has greater median as well mean than bandits.

→option a is true about the repairs performed on 2 types of cars:

bandits have lower median and mean than roadsters.

details

step-by-step explanation: