If i^2k=1, and i=√-1, which of the following must
be true about k
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.
Top 10 biggest countries in the world.
Answer:
# Country Tot. Area
(Km²) Tot. Area
(mi²) Land Area
(Km²) Land Area
(mi²) % of world
landmass
1 Russia 17,098,242 6,601,665 16,376,870 6,323,142 11.0 %
2 Canada 9,984,670 3,855,101 9,093,510 3,511,022 6.1 %
3 China 9,706,961 3,747,877 9,388,211 3,624,807 6.3 %
4 United States 9,372,610 3,618,783 9,147,420 3,531,837 6.1 %
5 Brazil 8,515,767 3,287,955 8,358,140 3,227,095 5.6 %
6 Australia 7,692,024 2,969,906 7,682,300 2,966,151 5.2 %
7 India 3,287,590 1,269,345 2,973,190 1,147,955 2.0 %
8 Argentina 2,780,400 1,073,518 2,736,690 1,056,641 1.8 %
9 Kazakhstan 2,724,900 1,052,089 2,699,700 1,042,360 1.8 %
10 Algeria 2,381,741 919,595 2,381,740 919,595 1.6 %
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
According to the authors of "Managing Quality Service in Hospitality: How Organizations Achieve Excellence in the Guest Experience," if failures occur repeatedly at certain points in the service delivery system, you should:
eliminate those points of service contact
survey customers to find solutions
change system design
fire the employees responsible
Answer:
b (i hope)
Explanation:
survey customers to find solutions
A prism has a length of l, width of 3 feet, and height of 7 feet. The volume of this rectangular prism is 84 ft3. What is the length of the prism? 28 ft 12 ft 8 ft 4 ft
Answer:
4
Explanation:
Took it on edg 2021
Answer:
The answer is 4 or D
Explanation:
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.
Find the difference...
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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How do excess fertilizers harm bodies of water?
A. Fertilizers causes algae to bloom, decay, and use up oxygen in the water.
B . Fertilizers chemically react with water.
C . Fertilizers usually don't get into bodies of water.
D . Fertilizers kill algae and disrupt aquatic food chains.
Answer:
D
Explanation:
Fertilizers kill algae and disrupt aquatic food chains.
Which of the following factors does not necessarily cause satisfaction but can cause extreme dissatisfaction? Satisfaction factors Basic factors Performance factors Excitement factors
so the answer of this problem is equivilent to the answer i need and that answer is 65
HEEEELP PLEASE :')
.
first box is 13 and 2nd box is 30 i belive might be wrong
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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Uhh How do I study for mid terms if its tommorow
Answer:
Well, if you held off studying, I think you should use the REST of your day looking over things like previous work and taking notes off of them, also you should probably **If you have an English essay** make an outline or some sort of general example of what it should be like so that you can instantly get to it, and you don't seem repetitive. Also... why didn't you study at least 2 weeks prior to midterms you're going to have a hard time remembering/getting correct answers if you reviewed them last minute.
r= 50
8. A speed skater goes around a turn with a 25 m radius. The skater has a velocity of 15
m/s and experiences a centripetal force of 720 N. What is the mass of the skater? (10
points - you must show your work)
Answer:
nose
Explanation:
In what way was youth activism during the civil rights era the same as it is
today?
A. People used popular culture to raise awareness.
B. People participated in protests and marches.
C. People wanted social justice.
O D. All of the above are correct.
Answer:
D
Explanation:
Answer:
D all of the above
Explanation:
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
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 )
If quality planning, control, and improvement are handled correctly, then which of the following will occur?
Your organization will have a process capable of meeting quality goals under operating conditions.
Your organization will conduct operations in accordance with the quality plan.
Your organization will conduct operations at levels of quality distinctly superior to planned performance.
All of the above
Answer:
organization will conduct operations
Explanation:i love nanoleaf panels
All of these are NEGATIVE consequences of irrigation EXCEPT *
A . drains water out of rivers, lakes or underground
B . increase salt in the soil
C . changes air temperature and moisture
D . grows large amounts of food
Given the current research on PTSD, what steps do you think the U.S. Department of Veterans Affairs should take to deal with the effects of PTSD in returning soldiers?
Answer:
I would reccomend them to cover the cost of therapy.
Explanation:
By the 1950s, treatments became more humane, but many people would not admit to any trauma symptoms due to the stigma surrounding mental illness. Treatments improved through the advent of group therapy and newly created psychotropic medications. You may, as many service members with PTSD do, begin using alcohol or drugs to cope with your symptoms. This can lead to more serious conduct problems, which can potentially lead to a dishonorable discharge. If that happens, you will be unable to obtain any benefits from the VA once your return home. CBT is a type of psychotherapy that has consistently been found to be the most effective treatment of PTSD both in the short term and the long term. CBT for PTSD is trauma-focused, meaning the trauma event(s) are the center of the treatment.
how do you think khanyi's relationship with her mother has been affected by the role that khanyi has to play
It may be inferred that when the reality program first aired, Khanyi and Khanz's relationship was rocky to say the least. Khanyi had left Khanz to straddle between boarding school and her mother's residence in an attempt to recapture her status.
When the show first aired, it seemed that Khanz knew Khanyi as well as a fan would—through television and social media posts. But it didn't take long for their relationship to grow.
What is an inference?Inferences are processes in thinking that move from premises to logical conclusions; the word infer is etymologically related to "carry forward." Theoretically, inference is typically separated into deduction and induction.
A person is considered to have drawn an inference when they reach a conclusion by combining one or two logical facts.
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Global warming causes changes in long-term weather patterns like _______________ and _______________ that makes farming more challenging.
A . clouds, sunshine
B . hurricanes, blizzards
C . wildfires, high winds
D . rainfall, drought
Answer:
C and D
Explanation:
Problem 3. Given three numbers: a, b, c. If fourth number is 12 unit greater then
Mean of the previous three numbers. What will be a Mean of these four
numbers.
Answer:
unit greater then
Mean of the previous three numbers. What will be a Mean of these four
numbers.
Explanation:its true
Does Edge-nuity use previously asked Questions on unit tests?
Answer:
I am not sure, but if you don't know the answer there is always Brainly and Quizlet!!!
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
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 :)
What is one way John Chapman cared for the earth
Answer:
by caring for the earth?
Explanation:
by caring for the earth?
Problem 1. Sam has Average of three marking periods M3 = 89. What grade he
need in MP4 to get Final Average: Mf = 91
Just by looking at this picture, you'll get mad:
Answer:
Honestly tho lol.
Explanation:
Answer:
YESSSSSSSSS!!!!!
Explanation:
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