Question 9 of 10

Mathematics

1 answer:

Lubov Fominskaja [6]4 years ago

5 0

Answer:

B. 12.4 years

Step-by-step explanation:

The rule of 72 says the doubling period multiplied by the interest rate in percent is equal to 72. Here, we're concerned with the doubling of the price index. That period will be ...

72/5.8 ≈ 12.4 . . . years

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Which complex number has a distance of StartRoot 17 EndRoot from the origin on the complex plane?

kari74 [83]

Answer:

4 - i

Step-by-step explanation:

Intuitively, the answer will be 4 - i, as the other numbers are too big to have a square as small as 17i. Also, we know that i will not be in the end result, which means that we should have a negative in the result as well.

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