Answer:
28 -4i
Step-by-step explanation:
Perhaps you want the product ...
(4 -2i)(6 +2i)
Multiplying in the usual way, we get ...
(4)(6) +(4)(+2i) +(-2i)(6) +(-2i)(2i)
= 24 +8i -12i -4i^2
Recognizing that i^2 = -1, we can collect terms to get ...
= 24 +i(8 -12) -4(-1)
= 28 -4i
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Please note that i = √(-1) is not the same as 1 or /. You may need to edit your question to ensure the correct symbol is used.
You know that $74.92 is the total, and you need to know how much of that total was split between 4 cousins. So that means you have to divide 74.92 by 4. This gives you $18.73.
Hope this helped! ;)
Convert 30% to a decimal by dividing by 100 = 0.30
Multiply by the cost of the helmet, $50
50 x 0.30 = $15, the amount of the discount.
50-15 = $35, the sale price of the helmet.
For the sales tax, again, convert to a decimal by dividing by 100 = 0.06
35 x 0.06 = 2.10, the amount of sales tax
$35 + $2.10 = $37.10, total cost with tax
3 and 17
17-3=14
hope that helps
Answer:
hmmm 38
Step-by-step explanation:
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