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Eddi Din [679]
3 years ago
13

What is the product of 5−2i and 3−4i? Enter your answer, in standard form, in the box

Mathematics
1 answer:
Lelechka [254]3 years ago
7 0

Answer:

\boxed{7-26i}

Step-by-step explanation:

The binomials are multiplied in the usual way, using FOIL or the distributive property:

  (5 -2i)(3 -4i) = 15 -20i -6i +8i²

Since i² = -1, this becomes ...

  = 15 -20i -6i -8 = 7 -26i

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25 points
Zielflug [23.3K]

Answer:  The correct answer is:  [B]:

_________________________________________

                " \frac{-3}{ x} " .

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Step-by-step explanation:

_________________________________________

Note:  A number; "divided by a variable" ; is Not a "polynomial" .

Answer choice:  [B]:  " \frac{-3}{ x} " ;  

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8 0
3 years ago
Wich numbers are rational (r) or irrational (i)? 68,18/42,70.2329,91.154389,5.
skelet666 [1.2K]
68 is rational
18/42 is rational
70.2.29 is rational
91.154389 is rational
5 is 

3 0
3 years ago
Read 2 more answers
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Gennadij [26K]

Answer:

none of these

Step-by-step explanation:

4 0
2 years ago
1
fgiga [73]

Answer:

1 1/5

Step-by-step explanation:

12/10=1.2 or 1 1/5

5 0
2 years ago
10 ft 8 ft 5 ft 4 ft 8 ft 17 ft What is the volume of the figure? Enter the answer in the box. 1 cubic feet​
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Answer: 944 cubic feet

Step-by-step explanation:

3 0
3 years ago
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