On interval 0 ≤ x < 2π, where are the x-intercepts of y = cos(2x)? startfraction pi over 2 endfraction and startfraction 3 pi over 2 endfraction 0, π, and 2π startfraction pi over 2 endfraction, pi and startfraction 3 pi over 2 endfraction.

Answers

Answer 1

The x-intercepts of y = cos(2x) in the interval 0 ≤ x < 2π are π/4 and 7π/4

The x-intercepts of y = cos(2x) are gotten when y = 0.

So, y = cos(2x)

cos(2x) = 0

Taking inverse cos of both sides, we have

cos⁻¹cos(2x) = cos⁻¹(0)

2x = π/2

Dividing both sides by 2, we have

x = π/4

So, the other angle in the range 0 ≤ x < 2π is x = 2π - π/4 = 7π/4

So, the x-intercepts of y = cos(2x) in the interval 0 ≤ x < 2π are π/4 and 7π/4

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Answer 2

Answer: D

Explanation:

D on Edge


Related Questions


Given that events A and B are independent with
P
(
A
)
=
0.64
P(A)=0.64 and
P
(
A
and
B
)
=
0.48
P
(
B
)
P(B), rounding to the nearest thousandth, if necessary.

Answers

The probability of event B occurring based on the question requirements is P(B), is 0.75.

How to solve

For two independent events A and B, the probability of both A and B occurring, P(A and B), is the product of their individual probabilities, P(A) and P(B).

So, P(A and B) = P(A) * P(B).

Given P(A) = 0.64 and P(A and B) = 0.48, you can solve for P(B) by dividing P(A and B) by P(A), i.e., P(B) = P(A and B) / P(A).

Substituting the given values, P(B) = 0.48 / 0.64 = 0.75.

Therefore, the probability of event B occurring, P(B), is 0.75.

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Some common ways that criminals try to pressure people into falling for a scam include creating a sense of urgency,appealing to your emotions and__ (everfi)
1) making an offer that needs to be compared with other products to see if it is a good deal
2)by threatening physical violence
3)meeting in person to build trust
4)making an offer that seems too good to be true

Answers

1 although they could use them all it could be 1 being the most common

The average salary in the NBA is $5,150,000. There are 82 games in the regular season and 48 minutes per game (assuming no overtime). If a player played every minute of every regular season game, what would his salary be per hour?

Answers

The basketball athlete earned 10,000,000 dollars to play 80 games.

a) How much did the athlete earn per game

We need to divide his total income by the number of games:

10,000,000 / 80 = 125000

He makes 125000 per game.

b) Assuming the athlete played every minute of every game, how much did he earn per minute?

Now that we know how much he earns per game, we need to find how much he earned per minute considering every game has 48 minutes. So we have to multiply 48 by 80 to get the total amount of minutes of the season. 48 x 80 = 3840 minutes.

So we need to divide his income per game by the number of minutes per game:

125000 /3840 = 32.55

He earns 32.55 dollars per minute.

c) Assuming that the athlete played 2/3 of every game, how much did he earn per minute?

We need to find how many minutes of every game is 2/3.

48 minutes ----1

X------------------2/3

x= 48 x (2/3) = 32.

So he played 32 minutes per game, but since there were 80 games, he played:

32 x 80 = 2560 minutes

But he still makes 125000 per game so we are going to divide his earnings between the total of minutes he played

125000 /2560 = 48.82.

Therefore, he earned 48.82 per minute.

d) Suppose the, averaged over a year, the athlete practiced or trained 37 hours for every game and then played every minute. Including this training time, what was his hourly salary?

If he trained 37 hours, we know that every hour has 60 minutes, so 37 hours in minutes would be: 37 x 60 = 2220 minutes of training.

He played every minute of every game (we already said this was 2560 minutes)

So he had 2220 + 2560 minutes in total = 4780 minutes = 79.66 hours

Now we're going to divide this by his salary: 10,000,000/ 79.66 = 125,533

Therefore, His hourly salary was 125,533.

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which one is better, bones bearings or reds bearing for my skateboard?

Answers

Answer:

reds

Explanation:

Answer:

i dk dude lol reds?

Explanation:

In Islam, who is prophet Muhammad (peace be upon him) ?

Answers

the prophet Muhammad is called Allah

In Islam, Prophet Muhammad (peace be upon him) is considered the last and final prophet sent by God (Allah) to guide humanity. He is revered as the messenger of Allah and is considered the seal of the prophets, meaning that no prophet will come after him.

Prophet Muhammad (pbuh) was born in the city of Mecca, in present-day Saudi Arabia, in the year 570 CE. At the age of 40, he received the first revelation from Allah through the Angel Gabriel, which marked the beginning of his prophethood. The revelations continued over a period of 23 years, and they were later compiled into the holy book of Islam, the Quran.

Prophet Muhammad (pbuh) preached monotheism (the belief in one God) and called people to worship Allah alone and follow His guidance. He taught the importance of faith, prayer, charity, fasting, and pilgrimage, among other teachings and principles that form the foundation of Islam.

Muslims regard Prophet Muhammad (pbuh) as a role model and strive to follow his example in their personal and communal lives. They hold great love, respect, and reverence for him and frequently use the phrase "peace be upon him" (pbuh) as a sign of honor and respect when mentioning his name.

What are some characteristics to consider when analyzing groups?

Answers

Explanation:

1)  Size-A group is formed with at least two members. Usually, the number of group members in a group ranges from 15 to 20 members. It becomes difficult to manage a large group. Therefore it is said that the more members in a group the more complex it is to manage.

2) Goals-The reason behind the existence of a group is having certain goals to achieve among the group members. A group cannot exist without a goal.

3) Norms-A group must have certain norms for effective interaction with the group members.

4) Structure- Based on the roles as well as the positions held by the members, the group has to have a structure.

5) Roles- The group leader assigns a certain role to every group member which they have to achieve in a given time. 

6) Interaction- Interacting with the members is very crucial for the group as it increases the bond and motivation to work efficiently. The interaction among the members can occur in various ways. It can be a face to face interaction or a telephonic interaction, in writing form or any other manner.

7) Collective Identity- A group is an aggregation of individuals. The individuals are separately called the members and collectively called a group.

pls remark brainliest

An American Express retail survey found that 16% of U. S. Consumers used the internet to buy gifts during the holiday season. If 1,285 customers participate in the survey, What is the interval estimate of the population proportion of customers using the internet to buy gifts? Use 95% confidence

Answers

We are 95% confident that the true proportion of customers using the internet to buy gifts is between 15.84% and 16.16%.

How to explain the confidence interval

Number of customers who used the internet to buy gifts n = 1285

Proportion of customers who used the internet to buy gifts p = 0.16

Confidence level = 0.05

Margin of error z = 1.96 (z-score for 95% confidence interval)

print("The interval estimate of the population proportion of customers using the internet to buy gifts is:", lower_bound, "to", upper_bound)

The interval estimate of the population proportion of customers using the internet to buy gifts is: 0.1584 to 0.1616

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What punctuation mark is missing from this use of a direct quote?
According to Dr. Leon “tree rings are a tree’s timepiece.”
a dash after to
a period after Dr. Leon
a comma after according
a comma after Dr. Leon

Answers

Answer:

D is your answer

Explanation:

You always put a punctuation after a name.

The punctuation marks are missing from the direct quote as there should be a comma after the name of  Dr. Leon Hnece the option D is correct.

What is a  punctuation mark?

A  punctuation mark is a mark or a character that separates the elements of writing such as a para or a passage. The marks like the commas at the end of the sentence are done to make things easier. This allows threaders to understand.

Find out more information about the punctuation mark.

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. You receive 23 out of 25 points on an exam. What is your score as a percent?

Answers

Answer:

92 percent

Explanation:

23÷25=0.92

0.92×100 = 92 percent

Answer:

should be like 94-98

Explanation:

Explain (or list) at least five reasons why you will benefit from going to college or trade school.

Answers

Answer:

1. Improved job prospects:

By completing a degree or trade program, you can have access to more job opportunities and higher-paying jobs.

2. Enhanced skills and knowledge: College and trade school education can equip you with the skills and knowledge needed to excel in your chosen field.

3. Networking opportunities: Attending college or trade school can help you build professional networks that can be useful for career advancement.

4. Personal growth: College or trade school can help you develop independence, critical thinking, and other essential skills that can benefit you throughout your life.

5. Greater earning potential: Completing a college degree or trade program can lead to higher earnings and a better quality of life in the long run.

A B C OR D? Correct answer gets braniest!

A B C OR D? Correct answer gets braniest!

Answers

Answer:

The correct answer is A.

Explanation:

A, tactics, is a category that measures judging vs prospecting. The tactics category measures which one you are more likely to be, and thus how you will make decisions, plans, and work.

Nurture refers to how much the outside world has affected you.

Agreeableness refers to how well you can be with certain people.

The mind is about ways the brain thinks and interprets information.

follow my Tictoc its localmiray trying to get to 10k and follow my friend .._perfect._isla

Answers

Answer:

is it fine if i do it after school ?

Explanation:

Ok does the username have to have the periods too?

The Framers of the Constitution gave specific powers to both the nation as well as individual states. Explain why printing currency is a delegated power. What problems would arise if each state was able to print their own money?

Answers

Answer:

Printing currency is a delegated power assigned to the federal government under the Constitution. The Framers recognized the importance of a uniform national currency to facilitate commerce, promote economic stability, and prevent inflation. Allowing states to print their own money could cause confusion, inflation, and fraud, and undermine the stability of the national economy. Hence, the power of currency printing is delegated to the federal government to maintain uniformity and stability in the economy.

A plant grew 17 inches in one year.

1 inch is approximately equivalent to 2.5 centimetres .
Approximately how much did the plant grow in centimetres ?

Answers

Answer:

42.5 centimeteres

What is the solution to the equation 3 (2 x 5) = 3 x 4 x? x = 0 x = 4 x = 5 x = 15

Answers

The answer would be 0

Answer:

it is 15 the person that sead 0 is wrong.

Explanation:

Why is it advisable to start a research introduction with the problem​

Answers

Answer:

A vague, disorganized, or error-filled introduction will create a negative impression, whereas, a concise, engaging, and well-written introduction will lead your readers to think highly of your analytical skills, your writing style, and your research approach.

Explanation:

Please mark me as brainliest

Round 10'463.24 to the nearest hundredth.

Answers

Answer:

10.00 hope this helps and hope it is correct.

Explanation:

10.00 hope this helped

What is the answer with steps

What is the answer with steps

Answers

cos(2θ) = cos²θ - sin²θ = (1-sin²θ)-sin²θ = 1-2(7/9)^2 = -17/81

Imagine that you were a member of the US Congress and are asked to make a public statement about the stance on Tik*Tok in the United States.

Write a statement explaining a stance. Include whether you think any restrictive measures should be taken

Answers

Explanation:

As a member of the US Congress, I believe that TikT ok poses a potential threat to national security due to its ownership by a Chinese company, and its ability to collect data on American citizens. While it has become a popular platform for entertainment and social networking, it is important to consider the risks associated with allowing a foreign company to have access to personal information of American citizens. Therefore, I support measures to regulate and monitor TikTok's activities in the United States.

Restrictive measures should be taken to ensure that user data is not being compromised or used for malicious purposes. This may include increased oversight by government agencies, mandatory transparency and accountability measures for TikT ok's operations, and possible restrictions on the use of TikT ok by government officials and employees. Additionally, we should encourage American companies to develop alternative platforms that prioritize user privacy and data security. While we must balance the benefits of technological innovation with the risks of national security, the safety and security of American citizens must remain our top priority.

can you pass 7th grad with 1 A, 2 C's, 7 D's, and 2 I's​

Answers

My friend flunked 8th grade but yet continued onto high school. But note, your parents can say yes to holding you back if a teacher recommends so. But other than that, you probably won’t get held back. But you will get held back in high school if you don’t pass.
It depends on the classes

For a lemonade stand, the total cost c, in dollars, of selling n cups of lemonade is given by c=100+ 1.5n. What is the best interpretation of
the number 100 in this equation?

Answers

$100 must be the start up cost of the lemonade stand, and the 1.5n must be the cost of producing each cup of lemonade.

Explain how Felicia could change her investigation and data collected to investigate the climate of her town

Answers

Answer:

Felicia’s mother is four times as old as Felicia. In 16 years, her mother will be twice her age. How old is Felicia now?

Explanation:

The lifetime of a particular type of car tire is normally distributed. The mean lifetime is 50,000 miles, with a standard deviation of 5,000 miles. Of a random sample of 15,000 tires, how many of the tires are expected to last for between 45,000 and 55,000 miles?

Answers

Answer:

10,240 tires

Explanation:

To calculate the percentage of tires that are expected to last for between 45,000 and 55,000 miles, we need to find P(45000 < X < 55000).

Calculator input for "normal cumulative distribution function (cdf)":

Lower bound: x = 45000Upper bound: x = 55000Mean, μ = 50000Standard deviation, σ = 5000

⇒ P = 0.682689492...

⇒ P = 68.27%

Therefore, approximately 68.27% (2 d.p.) of tires are expected to last for between 45,000 and 55,000 miles.

To find the number of tires that are expected to last between 45,000 and 55,000 miles from a random sample of 15,000, multiply the found percentage by the number in the sample:

⇒ 0.682689492... × 15000 = 10240.3428...

Therefore, of a random sample of 15,000 tires, 10,240 tires are expected to last for between 45,000 and 55,000 miles.

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Does anyone knows this?

Does anyone knows this?

Answers

Explanation:

D(x) =x⁴-2x³-2

_________

3. Cora earns $13 an hour as a cashier. How much will
she earn if she works from 8:00am to 2:00pm?
Answer:
56

Answers

Answer: Answer is 78 dollars.

Explanation:

from 8:00 am to 2:00pm it would be 6 hours

so

1 hour = 13

6 hours = 13*6 = 78

Indian season of class 12 is more earlier than Nepal approx (3 month earlier) .May I eligible for JEE advanced if my board result is not officially declared. I know it takes much time to published results of class 12. If I leave this year I lost my first attempt of jee advanced​

Answers

Answer:c

Explanation:

c

why dont she want me

Answers

Answer:

Explanation:

Sue is considering splitting the cost of a new TV with her roommate. Her share would be $305.22. Can Sue afford this? a. Yes, she can make the purchase and have money left over. b. Yes, but doing so will clear out her account. c. No, making that purchase will overdraw her account. d. No, she is overdrawn already.

Answers

Answer:

c

Explanation:

got it right on edge

No, making that purchase will overdraw her account.

What is cost?

There are many different costs, including fixed and variable, but they are all accounted for in the same way. Costs are recorded as expenses on the income statement during and accounting period and cleared out in a closing entry at the end of the period.

Cost is the amount of money spent by a business to produce or create goods or services. It excludes the profit margin markup.

Cost is the sum of money spent on making a good or product, as seen from the seller's perspective. A producer's costs and income would break even if he sold his goods for the production price, which would prevent him from losing money on the transaction. He would not, however, turn a profit.

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Which example is one of a negative social change brought on by technology?

A.
the development of modern factories increased the rates of unemployment
B.
the development of modern factories decreased the rates of migration to cities
C.
the development of communication devices created a new platform for communication
D.
the development of communication devices made it easier for humans to communicate

Answers

Answer: A

Explanation:

A rectangular prism with a length of 50 feet, width of 30 feet, and height of 20 feet. A rectangular pyramid with a base of 50 feet by 30 feet and height of 8 feet. Mr. Newman works as an architect. He created a solid foam model of a building that he is designing. How much foam was needed to make the model? 12,000 cm3 30,000 cm3 34,000 cm3 42,000 cm3

Answers

The foam that was needed to make the model is C 34,000 cm³

How to calculate the value

The volume of a rectangular prism is length x width x height. The volume of the rectangular prism is 50 x 30 x 20 = 30,000 cubic feet.

The volume of a rectangular pyramid is (1/3) x base area x height. The base area of the rectangular pyramid is 50 x 30 = 1500 square feet. The volume of the rectangular pyramid is (1/3) x 1500 x 8 = 4000 cubic feet.

The total volume of the foam model is 30,000 + 4000

= 34,000 cubic feet.

So the answer is 34000

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