Evaluate the determinant for the following matrix: -4 -4 -3 3 3 -5 -5 2 -5 a. 75 b. -203 c. -263 d. -152

A suitable calculator finds the determinant to be ...

... B. -203

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This can be calculated by hand by copying the first two columns to the right of the given matrix, then forming the sum of products of the downward diagonals and subtracting the sum of products of the upward diagonals.

... (-4)(3)(-5) +(-4)(-5)(-5) +(-3)(3)(2) -(-5)(3)(-3) -(2)(-5)(-4) -(-5)(3)(-4)

... = 60 -100 -18 -45 -40 -60

... = -203

answer: i believe its b. if you sound out the sentences that sounds wrong.

answer: $201

step-by-step explanation: to get the answer, you first get 3 nieces that he sold and multiply it by 67 and get $201, so he earned $201 selling his nieces.