3 years ago

If possible, find (a) A - B, (b) 3A, (c) 3A - 2B, and (d) AB in these two rows. Thanks a lot.

1 answer:

4 0

Wow matrixes gg
a)[ 1 1 4 ]
[-7 -6 -1 ]
[ 0 4 0 ]

b)[ 15 12 12 ]
[-12 -12 0 ]
[3 6 0 ]

c)[ 7 4 12 ]
[ -18 -16 -2 ]
[ 1 10 0 ]

d) I forgot how to do d lol so heres all I got.

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Answer:

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If Car 1 left 30 minutes earlier

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4 years ago

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3 years ago

Read 2 more answers

X + y = 7<br> 2x - 3y = -21

kotykmax [81]

There is only one solution

When you graph both equations, they intersect therefore the intersection point tells you there is one solution. If it was infinitely many solutions then it would be the same line. If it was no solution then the graph would show to parallel lines.