Complete the tasks to subtract the polynomials vertically.(1.3t3 + 0.4t2 – 24t) – (0.6t2 + 8 – 18t)What is the additive inverse of the polynomial being subtracted?

The polynomial being subtracted is 0.6t² + 8 − 18t. Its additive inverse is found by changing the sign of each term, giving −0.6t² − 8 + 18t. This matches choice B.

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