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Zina [86]
2 years ago
15

If I equals √-1 what is the value of I³

Mathematics
1 answer:
ziro4ka [17]2 years ago
8 0

Answer:

-I

Step-by-step explanation:

Given :

I= \sqrt{-1}

Now

I^{2} =-1

And I^{3} =-i

Answer will be -I

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Re-posting this because nobody noticed. Please somebody help me with this. Its my first time on brainly.
Svetlanka [38]

Answer:

1. Should stay the same since you can't combine any further

2. 6x²-6x+16

8 0
2 years ago
SALES A daily newspaper had 12,125 subscribers when it began publication. Five years later it had 10,100 subscribers. What is th
vekshin1

Answer:

The average change is 405

Step-by-step explanation:

The initially the number of subscriber = 12125

After five years the number of subscriber = 10100

Now we have to find the average change in the number of subscribers.

The average yearly change = change in subscriber/number of years.

Now insert the values in the above formula.

The average yearly change = (12125 – 10100) / 5

The average yearly change = 2025/5

The average yearly change = 405

6 0
3 years ago
Lighting a match is an example of a chemical change involving
bixtya [17]
My answer -

 If you light a match, the match catches fire. If something catches fire it is therefore combustible.

P.S

Happy to help you have an AWESOME!!!! day :D
4 0
3 years ago
The measurement around the trunk of a tree just below shoulder height is called girth. The largest known american beech tree in
Bumek [7]

Answer:

24 1/6 - 19 5/12=

24 1/6÷12- 19 5/12÷12

24 2/2- 19 5/1= 5 3/1

3÷1= 3

5÷3= 3 1/2

Step-by-step explanation:

Step 1: Do the lcd and the number in between what you do is multiply the number next to it.

Step 2: Then subtract the mixed numbers and you get your answer.

Step 3: Divide 3 by 1

Step 4: Divide 3 by 5 and answer is 3 1/2

3 0
3 years ago
The measurement of a central angle is 75. Find the measurement of <br> in radians
Marina CMI [18]
Circumference = 360 degrees 
<span>Circumference = 2π radians (comes from 2*pi*radius) </span>

<span>Therefore </span>
<span>360 deg. = 2*π radians </span>
<span>180 deg. = π radians </span>
<span>1 deg. = (π/180) radians </span>

<span>75 deg. = 75(π/180) radians </span>
<span>75 deg. = 75π / 180 radians </span>
<span>don't bother to try and simplify π (it is an irrational number) </span>
<span>however you can simplify 75/180 </span>
<span>both are divisible by 5 </span>
<span>75π/180 = 15π/36 </span>
<span>both are divisible by 3 </span>
<span>75 deg. = 5π/12 radians </span>

<span>We normally don't bother to go further, unless you actually need it as a decimal fraction (in which case, you will have an approximation) </span>

<span>75 deg. ≈ 1.308997 radians</span>
5 0
3 years ago
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