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djverab [1.8K]
4 years ago
15

Simplify the given expression below: (4+2i)-(1–7i)

Mathematics
1 answer:
emmasim [6.3K]4 years ago
4 0

Answer:

3 + 9i

Step-by-step explanation:

(4 + 2i) - (1 - 7i)

distribute the (-)

(4 + 2i) - 1 + 7i

combine like terms

3 + 9i

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A patient is instructed to take three 50-mcg tablets of pergolide mesylate (Permax) daily. How many milligrams of the drug would
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Answer:

The patient would receive 1.05mg of the drug weekly.

Step-by-step explanation:

First step: How many mcg of the drug would the patient receive daily?

The problem states that he takes three doses of 50-mcg a day. So

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Second step: How many mcg of the drug would the patient receive weekly?

A week has 7 days. He takes 150mcg of the drug a day. So:

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xmg - 1050mcg

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x = \frac{1050}{1000}

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The patient would receive 1.05mg of the drug weekly.

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