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DanielleElmas [232]
3 years ago
5

How to break up 13 times 8

Mathematics
2 answers:
ASHA 777 [7]3 years ago
4 0
Or do 52 plus 52 or do 7+6 for 13 and 4+4 for 8 and times the sums 
Scorpion4ik [409]3 years ago
3 0
(10×8)+(3×8)=80+24+104
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Which simplifications of the powers of i are correct?
OleMash [197]

The correct simplifications of powers of i are:

a. i^27=−i

d. i^8=1

e. i^5=i

Step-by-step explanation:

We know that

i^2=-1\\i^3=-i\\i^4=1

We can use the smaller powers of i to solve the larger powers.

a. i^27=−i

i^{27}\\={i^{24}}.i^3\\={i^{4*6}}.-i\\=(i^4)^6.-i\ \ \ \ As\ we\ know\ i^4=1\\=(1)^6.-i\\=1*-i\\=-i

b. i^28=i

i^{28}\\=i^{4*7}\\=(i^4)^7\\=(1)^7\\=1

c. i^14=1

i^{14}\\=i^{12}.i^2\\=(i^{4*3}).i^2\\=> i^2=-1\\=(i^4)^3.-1\\=(1)^3*-1\\=-1

d. i^8=1

i^8\\=i^{4*2}\\=(i^4)^2\\=(1)^2\\=1

e. i^5=i

i^5\\=i^{2*2*1}\\=i^2*i^2*i\\=(-1)(-1)(i)\\=i

Hence,

The correct simplifications of powers of i are:

a. i^27=−i

d. i^8=1

e. i^5=i

Keywords: Imaginary units, Iota

Learn more about imaginary units at:

  • brainly.com/question/8806598
  • brainly.com/question/8805387

#LearnwithBrainly

6 0
3 years ago
A rectangular yard is 18 feet long. The area of the yard is 400.5 square feet. What is the width of the yard
AnnZ [28]

Answer:

22.5

Step-by-step explanation:

5 0
4 years ago
The slope of line is -1/3. what is an equation of a line that is perpendicular to line of t
-BARSIC- [3]

Answer:

well you have to use y=mx and plugg your numbers in

Step-by-step explanation:

sorry its not much help

6 0
3 years ago
8 is 15% of what number
padilas [110]
(x (15))/100 = 8
x(15) = 800
x = 800/15 = 53,3333 ( just take 53 )
5 0
3 years ago
An elevator descended 5 feet per second. After 6 seconds, how many feet did the elevator decend ​
nadya68 [22]

<em></em>

<em>If the descend starts from 12 m above the ground level, how long will it take to reach −468 m? A. 60 mins. </em>

<em />

8 0
3 years ago
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