the length of a rectangular photo frame is 6 in. more than twice its width. its area is 108 in. find the length of the photo fra
1 answer:
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Answer:
see explanation
Step-by-step explanation:
A = πr² ← r is the radius and r = d ← d is the diameter
Hence
π ( d)² = A, that is
= A ( multiply both sides by 4 )
d²π = 4A ( divide both sides by π )
d² = ( take the square root of both sides )
d =
Answer:
(B) a square matrix
Step-by-step explanation:
The given Equations are:
,
and
Which can be written as:
Thus, it is a matrix with 3 number of rows and 3 number of columns, therefore the matrix which has same number of rows and columns is a square matrix, thus, a square matrix can be form using the given system of linear equations.