Answer:
option c
Step-by-step explanation:
option c is right..
If the matrix is of 2 by 2 then we can find the determinant of the matrix.
Then (ad - bc ) gives you the determinant of the matrix.
For example,
= (2)(-2) - (1)(4)
= - 4 - 4
= -8
Answer:
ok wait which symbol? this (<)?
well it should stay the same since -100 is greater than the 11b-12
LHS=RHS
11b÷11b b must cancell b also do the same on -12. -12÷11 will give u a lesser value compared to -100
prove me wrong
Answer:
yes it is
Step-by-step explanation:
it is since there is a common ratio between each term
I would use subsitution
y=x-7
sub x-7 for every x
5x+2(x-7)=14
5x+2x-14=14
add 14 to both sides
7x=28
divide both sides by 7
x=4
sub
y=x-7
y=4-7
y=-3
x=4
y=-3
(4,-3)
