The area of rectangular is A= length x width
120 feet of fancing = ---------------------------------- (the above line)
!-----------------------------------------!
! !
x ! the enclosed area ! x
! !
!---------------------------------------- !
120 -(x+x)
so the area is A = (120-2x) (x)= 120x-2x²
Answer:
16 per month
Step-by-step explanation:
you add the 10 and 6 together making it 16 total a month
Answer:
135/14
9 9/14
Step-by-step explanation:
29/7+11/2
10. Determine whether or not, vectors ui(1,-2, 0, 3), u2 = (2, 3,0,-1), u3 = (3,9,-4,-2) e R is a linear combination of the (2,-
vodka [1.7K]
If (2, -1, 2, 1) is a linear combination of the three given vectors, then there should exist 
such that
or equivalently, there should exist a solution to the system
Right away we get 
, so the system reduces to
Notice that the first equation is the sum of the latter two. The third equation gives us
so that in the second equation,
which in turn gives
and hence the (2, -1, 2, 1) is a linear combination of the given vectors, with
The answer is 15
Hope this helps you
