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Nady [450]
3 years ago
10

What is (-i)^5? A. -1. B. 1. C. I D-i

Mathematics
1 answer:
nika2105 [10]3 years ago
3 0

Answer:

D

Step-by-step explanation:

(-i)⁵ can be written as (-i)² * (-i)² * (-i). Since (-i)² is the same as i², this equals -1 * (-1) * (-i) which becomes -i.

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3 years ago
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Which of the following represents a positive number?​
Trava [24]

Answer: OPTION C

Step-by-step explanation:

A positive number must be greater than (>) 0, so lets check which fits this condition.

--------------------------------------------

A.

7.09+(-7.28)=-0.19   NEGATIVE

B.

-12+11.5=-0.5  NEGATIVE

C.

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D.

-21-(-18.5)=2.5   NEGATIVE

--------------------------------------------

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Hope this helps!! :)

Please let me know if you have any question

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3 years ago
Discs of radius 4cm are cut from a rectangular plastic sheet of length 84cm and width 24cm.How many complete discs can be cut ou
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5 0
2 years ago
The equation of line P is Y equals -7 divided by X +6 line Q is perpendicular to pee what is the slope of line Q
xenn [34]
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8 0
2 years ago
Joshua used two wood beams, PC and QA, to support the roof of a model house.
Mazyrski [523]

Answer:

\boxed{\boxed{PQ=3.6\ in}}

Step-by-step explanation:

As it is given as ΔQRP and ΔARC are similar, so the ratio of their corresponding sides will be same.

So,

\dfrac{RC}{PR}=\dfrac{AC}{PQ}

It is given as,

RC  = 3.3

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PQ = ??

Putting the values,

\Rightarrow \dfrac{3.3}{1.8}=\dfrac{6.6}{PQ}

\Rightarrow PQ=\dfrac{6.6\times 1.8}{3.3}=3.6

3 0
3 years ago
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