If f(x)=3(x+5)+4/x, what is f(a+2)a. 3(f(a)+5)+(4/f(a)+2)b. 3(a+7)+(4/a+2)c. 3(a+2)+(4/a)+2

The answer to question 1 is b.

The answer to question 2 is d.

The answer to question 3 is d.

The answer to question 4 is c.

i did the quiz

The answer to question 5 is a.

The answer to question 6 is c.

The answer to question 7 is a.

The answer to question 8 is a.

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.