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Kazeer [188]
3 years ago
10

Product of (6+i)(2+9i)

Mathematics
2 answers:
katrin2010 [14]3 years ago
8 0

(6+i)(2+9i)=18+54i+2i-9=9+56i

Yuki888 [10]3 years ago
5 0

Answer:

<h2>(6 + i)(2 + 9i) = 3 + 56i</h2>

Step-by-step explanation:

Use FOIL: (a + b)(c + d) = ac + ad + bc + bd

and i² = -1

(6 + i)(2 + 9i) = (6)(2) + (6)(9i) + (i)(2) + (i)(9i)

= 12 + 54i + 2i + 9i²

= 12 + 54i + 2i + 9(-1)

= 12 + 54i + 2i - 9               <em>combine like terms</em>

= (12 - 9) + (54i + 2i)

= 3 + 56i

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Answer:

yes

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What is the smallest four digit odd number you can make
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Answer:

  6

Step-by-step explanation:

The overbar means the digit repeats indefinitely. The repeating decimal 0.333... is equivalent to 1/3, so this is the simple addition ...

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<em>Comment on the repeating decimal</em>

1/3 = 0.3333... repeating is one of the first decimal equivalents you learn.

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If you're into repeating decimals. you may have learned how to convert them to fractions:

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Read 2 more answers
Pls answer my question​
DerKrebs [107]
55 degrees
You’re add both
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3 years ago
Help his is harder than I thought​
garik1379 [7]

Answer:

c) 4x = 20

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Step-by-step explanation:

Let the number of people in a van = x

Number of people in 4 vans = 4 *x = 4x

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x = 20/4

x = 5

5 0
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