Verify that △abc∼△def. find the scale factor of △abc to △def. △abc: ab = 10, bc = 16, ca = 20 △def: de = 25, ef = 40, fd = 50 i really need someone to explain to me how to do this because i am so confused my teacher didn't give us notes and didn't explain this very well.

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.

answer: 0,6

step-by-step explanation:

this would make it the y intercept.