A wire is bent to form semi circles as shown below. How long is the wire? Use 3.14 for pi and round your answer to the nearest hundredth if necessary 4 semi circles and the diameter is 41

Explanation

Those 4 semicircles can be joined to form 4/2 = 2 full circles.

Each circle has diameter 41 cm.

Let's find the circumference of one circle

C = circumference, d = diameter = 41, pi = 3.14

C = pi*d

C = 3.14*41

C = 128.74

That's the perimeter of one full circle. Double it to get

2*128.74 = 257.48 cm

Which is the total length of the wire.

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

step-by-step explanation: the positive, like 5, + its opposite, like -5 would be 0

5+(-5)=0, or 5-5=0