Read each problem. name the axiom of equality that it illustrates.
1. a = b and 3a = 7; 3b = 7
2. x = y and x^2 = 5; then y^2 = 5
name the axiom used to prove the rule of addition.
rule- for addition of equals: if a = b, then a + c = b + c
1. a + c = b + c

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.

6 cm

step-by-step explanation:

angle efh= angle egh

3+3+3+2*2*2+29*12 = 365

step-by-step explanation: