Answer:
8. b
9. d
Step-by-step explanation:
Answer:
x=9, y =-8-z, w =1, z=z
Step-by-step explanation:
Given that the augmented matrix in row-reduced form below is equivalent to the augmented matrix of a system of linear equations.
[ 1 0 0 0 | -9 ]
[ 0 1 1 0 | -8 ]
[ 0 0 0 1 | 1 ]
We find that this is a rectangular matrix 3 rows and 4 columns
i.e. the variarables are four but independent equations are only 3.
so only parametric equations can be found out
First row gives x = -9
Last row gives w = 1
II row gives y+z =-8 and we do not have any other equation in y or z
Hence we have solutoin as
z =z and y -8-z
The solution set is
x=9, y =-8-z, w =1, z=z
Answer:
c
Step-by-step explanation:
Well, surely you know what the picture below shows
the perimeter is 2l + 5w
and we know the perimeter is 750
now as for the part b)
now.. if you run a first-derivative test on the critical point of 75
say, test hmmm 74.99999 and 75.00001
you'll notice the point is a maximum
Hey there!
2/9n=-6
what does n =
To figure this out, we must work backwards
-27
your answer is -27
n = -27
Hope I helped!
Let me know if you need anything else!
~ Zoe