The correct answer is option B
(5 + 3i)(4+ 2i)
= 5(4+2i) + 3i(4+2i)
= 20 +10i + 12i +6i²
= 20 +22i +6(-1)
= 20 + 22i - 6
= 14 + 22i
<u>✍️</u><u>Answer:</u>
- The volume of the figure is 381 cubic in
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<u>hope it helps...</u>
<u>have a great day!!</u>
I think that it is D or A