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miss Akunina [59]
2 years ago
13

Helpppppppppppppppppppp

Mathematics
1 answer:
Ganezh [65]2 years ago
8 0

Answer:

See below ~

Step-by-step explanation:

<u>Q1</u>

  • y = (x + 3i)(x - 7)
  • y = x² + 3ix - 7x - 21
  • <u>y = x² + (3i - 7)x - 21</u>

<u>Q2</u>

  • y = (x - √5)(x - i)
  • y = x² - √5x - ix + √5i
  • <u>y = x² - (√5 + i)x + √5i</u>
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Answer:

B

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3 0
3 years ago
A telemarketing company calls telephone numbers chosen at random. It finds that 30% of calls are not completed (the party does n
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Answer:

21%

Step-by-step explanation:

Actually there are three levels of process here.

If 100 calls are made only 70 calls are completed (since 30%not completed)

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7 0
3 years ago
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