area = width * length
or
A = W * L
55 = W * (W+6)
solve for width:
0 = W^2 + 6W - 55
this is a quadratic and has two solutions -11 and 5
a length can only be non-negative so discard -11.
width W = 5 miles
now the length is 5+6 = 11 miles
Answer:
(0,1)
Step-by-step explanation:
hope this helps !
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Answer:
260 / 5 = 52
Step-by-step explanation:
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Answer:
The set of vectors A and C are linearly independent.
Step-by-step explanation:
A set of vector is linearly independent if and only if the linear combination of these vector can only be equalised to zero only if all coefficients are zeroes. Let is evaluate each set algraically:
, and :
The following system of linear equations is obtained:
Whose solution is , which means that the set of vectors is linearly independent.
, and
The following system of linear equations is obtained:
Since the number of variables is greater than the number of equations, let suppose that , where . Then, the following relationships are consequently found:
It is evident that and are multiples of , which means that the set of vector are linearly dependent.
, and
The following system of linear equations is obtained:
Whose solution is , which means that the set of vectors is linearly independent.
The set of vectors A and C are linearly independent.