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ValentinkaMS [17]
3 years ago
12

What is (8 - i) + (5 + 7i)? O (A) 3 - 8i O (B) 8i - 3 O (C)-5i O (D) 13 + 61

Mathematics
1 answer:
mars1129 [50]3 years ago
8 0

Answer:

13 + 6i

Step-by-step explanation:

expand the brackets (basically drop them), then rearrange the numbers (8 + 5 + 7i - i) then you will get your answer.

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Joe, working alone, takes 8 hours to mow a lawn. Sally, working alone, can mow the same lawn in 6 hours. How long does it take t
tamaranim1 [39]

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Step-by-step explanation:

you need to find out how much work they can do in an hour.

let x represent the total collaborative work

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I cannot guarantee this is correct but hope it helped

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evablogger [386]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
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Kobotan [32]
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3 years ago
Answer two questions about Equations A and B: A.5x=20 \ B.x=4 ​ 1) How can we get Equation B from Equation A? Choose 1 answer: (
romanna [79]

Answer:

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