Find the surface area of the right triangular prism.

(B) 1608cm^2

Step-by-step explanation:

(30)(17)=510

(30)(10)=300

(21)(30)=630

1/2(21)(8)=84

1/2(21)(8)=84

510+300+630+84+84=1608

Note:

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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.