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Elenna [48]
3 years ago
10

Simplify the expression to a + bi form: (-6 - 9i)(-11 + 7i)

Mathematics
2 answers:
jek_recluse [69]3 years ago
4 0

Answer:

129+57i

Step-by-step explanation:

kumpel [21]3 years ago
3 0

( - 6 - 9i)( - 11 + 7i) \\  = 66 - 42i + 99i - 63 {i}^{2}  \\  = 66 + 57i + 63 \\  = 129 + 57i

I hope I helped you^_^

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On a coordinate plane, solid circles appear at the following points: (negative 4, 2), (negative 2, 2), (negative 1, 4), (1, 1),
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We need to remove either (1, 4) or (1, 1) to create a function.

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Relations are formed by two sets, an input set known as domain and an output set known as range and relationships between these sets. A relation is a function if and only if each element from domain is related to only one element of the range. Mathematically speaking, we must satisfy the following proposition:

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2 years ago
The average cost of tuition and room and board at a small private liberal arts college is reported to be $8,500 per term. A fina
rewona [7]

Answer:

D. +3.82

Step-by-step explanation:

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Data provided in the question

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We simply applied the above formula so that the correct value could come

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6 0
3 years ago
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Step-by-step explanation:

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3 years ago
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Answer:

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3 years ago
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Step-by-step explanation:

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