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If \(\begin{pmatrix}  2  &  1 \\  4 ...

If (2143)(54)  = k(17.540.0), find the value of k.

A.

1.2

B.

3.6

C.

0.8

D.

0.5

Correct answer is C

(2143)(54)  = k(17.540.0)

(10+420+12) = (1432) = k(17.540.0)

k = 1417.5=3240=0.8