How do you solve (2k – 1)^2= 9

MathPapa

Step-by-step explanation:

Just put it there. Since the square is there, you put two of those side by side and then multiply all the numbers. Then you solve normally. (2k-1)(2k-1)=9

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.

a² + b²= c²

24² + 7² = c²

c= 25