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Jet001 [13]
2 years ago
8

What is the product of the complex numbers 3 - 4iand 6+i where i= -1

Mathematics
2 answers:
Nadusha1986 [10]2 years ago
8 0

Answer:

Step-by-step explanation:

(3-4 \iota)(6+\iota)\\=18+3 \iota-24 \iota-4 \iota^2\\=18-21 \iota+4\\=22-21 \iota

mixas84 [53]2 years ago
5 0

Answer:

35

Step-by-step explanation:

Since i=-1, we can rewrite the equation as 3-[4(-1)} multiplied by 6+(-1). Since

4 x-1=, 3-(-4)=7. 6-1=5, and 7x5=35.

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Mark wants to buy a PS5 for $499.00. If tax in her local county is 7.75% of the total sale, what is the final cost?
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Assuming Mark wants to buy a PS5 for $499.00 and the  tax in her local county is 7.75% of the total sale, what will be the final cost is $538

Using this formula

Final cost =Total sales+ (Total sales×Tax)

Let plug in the formula

Final cost= $499.00+($499.00×7.75%)

Final cost= $499.00+$38.67

Final cost= $537.67

Final cost= $538 (Approximately)

Inconclusion Assuming Mark wants to buy a PS5 for $499.00 and the  tax in her local county is 7.75% of the total sale, what will be the final cost is $538

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Step-by-step explanation:


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4. What’s the answer to this question please
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Answer:

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