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Lena [83]
3 years ago
15

What is the value of the product (4 - 21)(6 + 2/)? 20 - 41 20 + 161 28 + 161 28 - 41

Mathematics
1 answer:
xeze [42]3 years ago
3 0

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

_____

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.

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Add 2.38 and 4.89 then subtract 3 giving you 4.27
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3 years ago
On the day of a child’s birth, a deposit of $25,000 is made in a trust fund that pays 8.75% interest, compounded continuously. D
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9514 1404 393

Answer:

  $222,822.57

Step-by-step explanation:

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8 0
2 years ago
The history museum is hosting a special exhibition on history of flight. The admission ticket for each adult costs $7 and the ad
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Answer:

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y= number of adults

x = number of children

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Step-by-step explanation:

hope this helps

5 0
2 years ago
Natalie works in a department store selling clothing. She makes a guaranteed salary of $300 per week, but is paid a commission o
Sergio039 [100]

Answer:

The answer is below

Step-by-step explanation:

a) Natalie basic salary is $300 per week. She is paid a commission of 30% of her total sales for the week. Therefore her total weekly salary per week is given by:

Total weekly salary = Basic salary + Commissions

If Natalie makes $225 in sales, her commission = 30% of $225 = 0.3 × $225 = $67.5

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b) If Natalie makes $x in sales, her commission = 30% of $x = 0.3 × $x = $0.3x

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7 0
3 years ago
Derivation of f(x) = x^4 - 8x^2 + 3​
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