The row-echelon form of the augmented matrix of a system of equations is given. Find the solution of the system. 1 0 -5 -3
0 1 -4 -5
0 0 0 0
a. X = 5t+ 3
C.
x=51-3
y = 47-5
y = 47-5
Z=
t = any real number
b. x = -5t + 3
y = 48-5
Z=
t = any real number
z = 1
t = any real number
d. X=-57-3
y = 41-5
2=
* = any real number

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.

step-by-step explanation:

x^2 -12x + 36 + y^2 = 36

x^2 + y^2 = 12x

r^2 = 12rcos(theta)

r = 12 cos(theta)

yes

step-by-step explanation:

they have to be opposite and reciprocal of eachother.