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dsp73
3 years ago
15

Simplify the expression (9 + 2i)(9 − 2i). 81 − 18i 81 + 18i 77 85

Mathematics
1 answer:
Ymorist [56]3 years ago
5 0

Answer:

=85

Step-by-step explanation:

I'm pretty sure I'm correct

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Answer:

38.5 grams of sugar for 5 cakes

Step-by-step explanation:

Set up a ratio of grams to cakes

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How much for 1 cake(unit rate because you want sugar over cakes)?

Just divide by 11.

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But you need 5 cakes so multiply by 5

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ValentinkaMS [17]

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