If i^2k=1, and i=√-1, the answer choice that must be true about k is D. k/2 is an integer.
Calculations and ParametersWe can recall that i^n= 1 if and only if n is a multiple of 4. (If you need refreshing, just confirm that i^4 = 1, i^8 = 1, i^12 = 1, etc.)
Therefore, if i^2k = 1, then 2k must be a multiple of 4, and therefore, k must be a multiple of 2.
If k is a multiple of 2, then k/2 must be an integer.
Option (A) is incorrect because k = 2 is a solution, but 2 is not a multiple of 4.
Option (B) is incorrect because k = -2 is a solution, and -2 is not a positive integer.
Option (C) is incorrect because k = 2 is a solution, but when 2(2) = 4 is divided by 4, the remainder is 0, not 1.
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The answer choices are:
A. k is a multiple of 4.
B. k is a positive integer.
C. When 2k is divided by 4, the remainder is 1.
D. k/2 is an integer.
soaring toward the light.
Should the writer make this revision?
Answer:
the light weakens the eye for the future
Explanation:
it is when the writer has been blinded by the light towards him meaning that he cannot see his future or his decisions
Dana’s grandparents gave her a piggy bank with $10 for her birthday. Dana added $2 each week to the piggy bank and recorded how much money she had in it at the end of each week. If she did this for 9 weeks after her birthday, what is the median of the amounts she recorded during these weeks?
Answer:
MEDIAN= 19
Explanation:
The amounts are 10,12,14,16,18,20,22,24,26,28
18 + 20 = 38
38 / 2 = 19
19 is your median.
Hope I helped <3
Expand.
If necessary, combine like terms.
(x + 5)(x - 5) =
Answer:
x^2-25
Explanation:
use the foil method - personally works best for me
hope this helps :)
The repeated descriptions of the rituals of shooting the bow (bowing to the other archer, bowing toward the target) are most likely intended to emphasize:
O. the boy's exasperation with the repetitiveness of the archery competition.
O. Tetsuya's and the stranger's connection with their heritage
O.the sacredness of the ritual and the respect with which the archers treat the art.
O. the irony of Tetsuya's and the stranger's feigned respect in the heat of competition.
The repeated descriptions of the rituals of shooting the bow are most likely intended to emphasize the boy's exasperation with the repetitiveness of the archery competition. The correct option is A.
What is archery?Archery is the recreational activity, training, or expertise of shooting arrows with a bow. The word is originated from the Latin arcus, which implies "bow."
Archery has historically been employed for hunting and confront. It is primarily a competitive sport and recreational activity in modern times.
The repeated descriptions of archery rituals are most likely intended to highlight the boy's frustration with the archery competition's repetitiveness.
Thus, the correct option is A.
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Inhumane factory farming methods have a huge tendency to contribute to environmental
degradation. Explain the connection and motivate why a study on such factors is important.
Inhumane factory farming methods have a huge tendency to contribute to environmental degradation because a lot of Factory farms do bring out a lot of noxious air pollutants for example ammonia, hydrogen sulfide, as well as methane. These emissions are known to have a negatively effect on the human health, animal health, as well as the environment.
What is the link between inhumane factory farming methods and environmental degradation?The use of the Inhumane factory farming method is known to be one that has a lot of connection with the harm that is done to the environment. Activities are known to be done by humans has brought a lot of harm such as environmental degradation through the Cutting down of trees.
Therefore, Inhumane factory farming methods have a huge tendency to contribute to environmental degradation because a lot of Factory farms do bring out a lot of noxious air pollutants for example ammonia, hydrogen sulfide, as well as methane. These emissions are known to have a negatively effect on the human health, animal health, as well as the environment.
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What is one way John Chapman cared for the earth
Answer:
by caring for the earth?
Explanation:
by caring for the earth?
tell me a person for narito
Naruto?
im guessing well i have two one is an emo boy with great sword powerers that is Itachi he kissed this golden hair blue eyes bot named Naruto
(I ship it )
Models can represent things that are too far away or to small to see true or false?
Answer:
true
Explanation:
models can represent really anything
Need help with Information TechnologySBA
Explanation:
technology SBA(small business administration) information resources management IRM
strategic plan reflects the agency's dedication to optimizing and maintaining the SBA'S IT infastructure indetifying areas for IT effiency and innovation and investing in the IT workforce
What is JAG? In high school
Answer:
Explanation:
JAG stands for Jobs for American Graduates. It's supposed to help graduates transition into a workplace and get high quality jobs.
The original JAG Model was launched in 1979 in the State of Delaware as a “school-to-work transition program” designed to keep students in school through graduation and help them transition into the work place in quality jobs.