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Brilliant_brown [7]
2 years ago
12

How to simplify the complex number (9 - 2i) - (-2 + 6i) ?

Mathematics
1 answer:
matrenka [14]2 years ago
3 0
(9 - 2i) - (-2 + 6i) \\ \\ 9 - 2i + 2 - 6i \\ \\ (9+2) + (-2i - 6i) \\ \\ 11 - 8i \\ \\ Answer: \fbox {11 - 8i}
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Back to my question. I have this problem that I cant solve.
vesna_86 [32]

Answer:

Step-by-step explanation:

-21-9k=-8(6k+3)

-21-9k= 48k+24

+9k          +9k

-21=57k+24

-24         -24

-45=57k

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idk if that helps, sorry

6 0
2 years ago
Read 2 more answers
. Dillion deposits $150 into his account. One week later, he withdraws $26. Write an addition expression to represent this situa
Lina20 [59]

Answer:

Expression = x + 150 +(- 26)

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Step-by-step explanation:

Given

Deposit = \$150

Withdrawal = \$26

Required

Represent the situation

Determine how much higher or lower is the remaining amount

Let the initial amount in his account be represented with x

When he deposited, the balance becomes

Balance = x + 150

When he withdrew, the balance becomes

Balance = x + 150 + (-26)

Hence, the algebraic expression is

Expression = x + 150 +(- 26)

Calculating how much higher or lower

Balance = x + 150 + (-26)

Open bracket

Balance = x + 150 -26

Balance = x + 124

Recall that the initial amount in the account is x

The difference between the balance and the x is as follows

Difference = x + 124 - x

Difference = \$124

<em>Hence, the account has a higher of $124 after both transactions</em>

8 0
2 years ago
5/6 + 2/3 + 1/4 = ???
jeka94
7/4 is the answer to your question
6 0
2 years ago
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MariettaO [177]

Answer:

Divide the number of contestants by 4 and when there is 120 contestants there is 30 winners

Step-by-step explanation:

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3 0
2 years ago
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vlabodo [156]

Answer:

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Step-by-step explanation:

If brainiest is earned its Greatly Appreciated

(-3s+20)(4-1) do whats in ( )'s

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-9s+60 is the answer

4 0
3 years ago
Read 2 more answers
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