She noted the following matrices. 1
II
IV
1 0
0
0
-1
-1
2
7
1
1 -2
-7
1 1
0-1
0
1
0-1
1
1
2
2
-3
0 1 -5 -16
0 0 22 66
0 1 0-1
0 0 1 3
0 0 1
3
2
37
In which order should the matrices be arranged when solving the system from start to finish?
O I, IV, III, 11
O II, III, IV, 1
O II, IV, I, III
O IV, II, III, I

At a constant it will take one hour to travel 32 mi.at that speed it will take 1/2 hr to travel the remaining 16 mi.it will take 1+1/2 hr to travel the 48mi @ 32mph.so 1 hr = 60 min& 1/2 hr = 30 min1+1/2 hr = 90 min.there are 60s in each 90 × 60 = 3600 seconds.the real question seriously is he why are they driving so slow? ! lol.