What is the determinant of h= [2 4 9 3 3 1 4 5 3]

answer:

15

step-by-step explanation:

using the top row values and alternating signs

= 2 - 4 + 9

= 2[ (3 × 3) - (5 × 1) ] - 4 [ (3 × 3) - (4 × 1) ] + 9 [(3 × 5) - (4 × 3) ]

= 2(9 - 5) - 4(9 - 4) + 9(15 - 12)

= (2 × 4) - (4 × 5) + (9 × 3)

= 8 - 20 + 27

= 15

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation:

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step-by-step explanation: