What values of c and d would make the following expression represent a real number?
i(2 +31)(c + di)
O c= 2, d = 3
O C= -2, d = 3
Oc=3, d = -2
Oc=-3, d=-2

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.

1. supplementary angles

2. acd and bcd

step-by-step explanation:

pi or 3.14159265359 is an irratinal decimal