Answer:
Step-by-step explanation:
6x=3(x+4) distribute the 3 to the x and the 4 in the parenthesis to get 6x=3x+12 then subtract 3x on both sides to get 3x=12 last step is to divide by 3 on both sides so x is by itself and all you have left is 12/3 which would leave you with x=4
Answer:
Dimensions:
H = 0.9 m
W = 0.4 M
L = 2.4 m
Step-by-step explanation:
As they are all the same dimensions and there are only 3 stairs, divide all the figures (except the length as it will stay the same) by 3 to get your figures.
where det(<em>A</em>) = 1×1 - 2×1 = -1.
where det(<em>B</em>) = 0×2 - (-1)×1 = 1. Then
On the other side, we have
and det(<em>AB</em>) = det(<em>A</em>) det(<em>B</em>) = (-1)×1 = -1. So
and both matrices are clearly the same.
More generally, we have by definition of inverse,
where 
is the identity matrix. Multiply on the left by <em>A </em>⁻¹ to get
Multiplication of matrices is associative, so we can regroup terms as
Now multiply again on the left by <em>B</em> ⁻¹ and do the same thing:
Answer:
Okay!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The answer is 14
Step-by-step explanation:
Folow order of operations and when doing multipactiona or subtraction or division and addition, make sure to go from left to right
