Special Segments, Please help!

x= 1, 3, 7

x=3

Step-by-step explanation:

Secant-Secant Formula:  

(whole secant) x (external part) =         (whole secant) x (external part)

9*4 = 12*x

36 = 12x

Divide each side by 12

36/12 = 12x/12

3 =x

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.