I just took the test so I know its right.
B. African Americans could only attend certain colleges.
E. African Americans made less money than their white counterparts.
Triangular island has a lighthouse at each of its corners, represented by the vertices of the triangle. The perimeter of triangular island is 6. 8 miles. There is a channel on triangular island which divides it into two smaller islands: green island and coconut island. The length of the channel is equal to half of the distance between the lighthouses on coconut island. What is the perimeter of green island.
The perimeter of the green island is; 3.4 miles
How to find the Perimeter of a Triangle?
We are given;
Perimeter of triangular Island = 6.8 miles
A channel divides the triangular island into 2 smaller islands.
Now, we are told that this channel is half the length of the distance between the lighthouses.
If the distance from one light house is x, the length of the channel is x/2.
Thus;
The channel cuts horizontally and green island is a small triangle while coconut island is a trapezium.
Since perimeter of the main triangular island is 6.8 miles, then;
3x = 6.8
x = 6.8/3
x = 2.267 miles
Then the perimeter of green island = (2.267/2) + (2.267/2) + (2.267/2) = 3.4 miles
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Samantha travelled northwest a distance of 4000 m on a bicycle in 5400 s. What is her velocity?.
Answer:
0.74 m/s
Explanation:
Velocity = Distance/time
V = 4000/5400
What is the ph of a 0. 65 m solution of the weak base pyridine?
Answer:
The pH of a weak base (in this case, pyridine is a weak base) is calculated by using the weak base equation, and then solving it.
C5H5N; Kb= 1.7 x 10⁻⁹
pH = -log [H⁺]
we can also say that pH = 14 + log [OH⁻]
Plugging into the weak base equation, we know that Kb = [OH⁻][BH⁺] / [B]
This can be solved using an ice chart, which will then simplify to :
Kb = [x][x] / [0.50-x]
We can assume that x is very small in comparison to the 0.5 , so we consider it zero.
Then plug in and solve for x. 1.79 *10-9 = x² / 0.5
x = 2.992 * 10⁻⁵
ince X is equal to the [OH⁻] concentration, we can plug it into the second pH equation, and get the pH!
pH = 14+ log 2.99 * 10⁻⁵
pH = 9.48
Explanation:
hope this helps
Why is it important to present your answer according to the marks allocated.
The reason why it is important to present your answer according to the marks allocated is; Presenting one's answers according to the marks allocated to the assessment questions makes it easy for the examiner to grade one's papers properly.
What is the importance of following correct format?Assessment questions are defined as the questions given to a student to test their knowledge of what the student has been taught.
Now, this method of assessment questions is usually used for training and in academic environments.
The reason why it is important to present your answer according to the marks allocated is that Presenting one's answers according to the marks allocated to the assessment questions makes it easy for the examiner to grade one's papers properly.
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The base of a parallelogram is half its height. The base measures 6 1/2 inches. Find the area of the parallelogram in square inches.
Answer: 84 1/2 or 84.5 same thing
Explanation:
It says the base is half the height and the height is 6 1/2. So you do 6 1/2 x 2 to get the height. And 6 1/2 x 2 = 13. The you do base x height so it would be 6 1/2 x 13. You have to make a mixed number so 6 1/2 as a mixed number is 13/2. When you have a whole number and your mutilpling with a fraction you put a one under it so 13 wwould turn into 13/1. Then you do 13/2 and 13/1 which equals 169/2. Next you divide 169 divided by 2 and that equals 84 remander 1. So the answer would be 84 1/2 or 84.5
Frank, who lives in texas, and his sister lilly, who lives in japan, correspond regularly. From what he can tell from the postmarks on both his and his sister’s letters, it appears that it takes longer for lilly’s mail from japan to reach him in texas than it does for his letters from texas to reach her in japan. When frank called his post office to ask if there was a reason for this, the postmaster told him that the delivery time of letters in both directions should be the same. Frank and his sister decided to collect data to see if letters from japan to texas take longer to be delivered than letters from texas to japan. They recorded the delivery time in days. After convincing themselves that the assumptions were reasonable, they performed a two-sample t-test and obtained the following computer output.
Answer:
(A) There is convincing evidence that there is no difference in the mean delivery times.
(B) There is convincing evidence that there is a difference in the mean delivery times.
(C) There is convincing evidence that the mean delivery time from Japan to Texas is greater than the mean delivery time from Texas to Japan.
(D) There is not convincing evidence that the mean delivery time from Japan to Texas is greater than the mean delivery time from Texas to Japan.
(E) The t-test cannot be used for sample sizes that are this small.
Explanation:
The correct option is;
(A) There is convincing evidence that there is no difference in the mean delivery times.
Step-by-step explanation:
Here we have the formula for the two-sample t-test given s;
To Texas N₁ = 12, =8.74 σ₁ = 2.92 SE Mean₁ = 0.84
To Japan N₂ = 9 = 6.75 σ₂ = 2.56 SE Mean₁ = 0.85
t = 1.667
Where the null hypothesis is
mu To Texas = mu To Japan and the alternative is
mu To Texas > mu To Japan
Here since the observed P value of P = 0.058 is greater than the significance level of 0.05 we fail to reject the null hypothesis and we will therefore, not accept the alternative hypothesis.
Hence, there is convincing evidence that there is no difference in the mean delivery times.
A 25 gram bullet is fired from a gun with a speed of 230m/s. If the gun has a mass of. 9kg. What is the recoil speed of the gun?.
Answer:
gun coil is 5.8 m/s
Explanation:
I think so , correct me if I'm wrong
Water is one of the most powerful forces on earth. How does the example shown here illustrate the theory of uniformitarianism?
The image illustrates the theory of uniformitarianism by; showing us the erosion activity of land in past and present scenarios.
What is uniformitarianism?The theory of uniformitarianism is the principle given by the Scottish Geologist Hutton that says that the present is the mirror to the history and the geological evolutions of the past eras.
Thus, the principle states that the geological process is continuous and constant rather than being broken or discontinuous.
The image attached shows the soil erosion process of the land and this tells us that the erosion even happened in earlier times on that land and still in the present time the process is continuously going on.
Therefore, the image illustrates the theory of uniformitarianism by showing us the erosion activity of land in past and present scenarios.
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Current research finds that younger adults can hold between ________ items in short-term (working) memory if they do not use any type of retention strategy
According to current research, there is a maximum number of items that younger adults can hold in their short term memory without a retention strategy and this is 3 to 5 items.
What number of items can be help in the working memory?The working memory - short term memory - cannot hold a lot of items at once but these number of items will vary with age. Younger people should be able to hold more items.
This was confirmed by current research which shows that a young person can hold a much as 5 items in their working memory and a minimum of 3 items.
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Calista is struggling to balance her home life, part-time job, and school work. Her grades have begun to slip, and she is considering dropping out completely in order to work full time. What advice would you give calista? << read less.
Calista should not give up on her education and she should set a timetable.
Advices that Calista can follow She should not give up, Calista should not give up on her education since she had already started, but continue to encourage herself.Set a timetable, Calista should have a timetable of how to run her day to day activities which can better help her have time for her studies.Therefore, Calista should not give up on her education and she should set a timetable for herself that will work for her.
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Mags wants to know what the hottest hairstyle trend is in her town
The option that will suit Mega is to Get a list of salons in her town and use a deck of cards to pick 5 of them to visit. Survey all hairstylists that work in each salon.
What is salon?A salon is known to be a place that offers hair services and others such as spa treatment.
Mags can have the hottest hairstyle trend is in her town if she visit the best salon that has what she wants.
See options below
A.Get a list of salons in her town and use a deck of cards to pick 5 of them to visit. Survey all hairstylists that work in each salon.
B.Get a list of salons in her town and circle the 5 salons that are close to her house. Survey all the hairstylists that work at each salon
C.Go to all the salons where Luna and her friends go. Survey all the hair stylists that work at each salon
D. Ask her clients that are celebrities which salons they go to. Survey all the hair stylists that work at each salon
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The area of a circle is 153. 86 square meters. What is the diameter of the circle? use 3. 14 for π.
Answer:
14
Explanation:
A=pi × r²
153.86 = 3.14 × r²
Divide both sides of the equation by 3.14
it becomes:
r²=153.86÷3.14
r²=49
taking the square root for both sides of the equation
r = 7
and
diameter = 2 × radius
diameter = 2 × 7 = 14
Which is a good source of omega-3 fatty acids brainly
Answer:
Flax Seeds
Explanation:
I just took the test.
What was one reason for the growth of representative government in the american colonies.
Answer:
unfair representation from Britain
Explanation:
the reason the original colonies wanted a representative governemnt was because of how unrepresented we were in parliment. we didnt have a spokes person in britians parliament and when the colonies were taxed, they thought it was unfair that Britain was taxing them without representation. thats were the strive for representation came from
Based on paragraph 5 of the book review, what did the reader most likely have difficulty with when he began reading the book?
The thing that the reader most likely had difficulty with was; He had trouble thinking of a bat as a character.
What was the interpretation of the Paragraph?This question is from paragraph 5 of the book review titled "a backyard bat is an "abnormal" character".
Now, "Abnormal" is the opposite of normal, which means readers would have difficulty accepting it as a character in a book. However, the author further explains that although difficult to accept at first, the bat does become an interesting character as the story develops.
In conclusion the thing that the reader most likely had difficulty with when he began reading the book was that He had trouble thinking of a bat as a character.
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What is the measure of ac? enter your answer in the box. ° circle with inscribed angle a b c. Angle a b c is 2. 5 x plus 4 degrees. The intercepted arc a c is 7 x minus 2 degrees
Answer:Answer is 33 your welcome
Explanation:
The table shows some values of x and y that satisfy the equation.
Which of the following is the scientific notation for the number 907,050,000,000,000,000,000,000,000?
9.0705 x 1027
9.0705 x 10, 27
9.0705 x 1022
9.0705 x 10, 22
9.0705 x 1025
9.0705 x 10, 25
9.0705 x 1026
9.0705 x 10, 26
Answer:
D. 9.0705 x 1026
Explanation:
When finding the scientific notation for this number, you have to go left 26 places. Also, I took the quiz.
Which of the following opinions about nonviolence is most strongly expressed by the author of the point essay?.
The opinion about nonviolence strongly expressed by the author is; A. peaceful protest and negotiations are the only way to achieve sustainable resolutions to conflict
What is the opinion of the Author?This question is taken from the title essay called Non Violence with Martin Luther as the reference point in it.
The author said that Martin Luther King used to usually reflect on his understanding of nonviolence since he became aware of the concept of nonviolence when he read Henry David Thoreau’s Essay on Civil Disobedience.
Finally in the essay the opinion about nonviolence strongly expressed by the author is that peaceful protest and negotiations are the only way to achieve sustainable resolutions to conflict.
The options are;
A. Peaceful protest and negotiations are the only way to achieve sustainable resolutions to conflict.
B. In an ideal world, nonviolence is preferable, but that is not the world we live in.
C. Non-violence does not encourage democracy.
D. Different tactics, even violent ones, are sometimes required.
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Which wall do you think separates the poet from his dream? explain.
Answer:
his life situation
Explanation:
theres always a situation that separates you from your dreams
Answer:
A symbolic wall of racial discrimination separates the poet from his dreams. Being a black, living in America- a country full of white people was a real obstacle on his way to achieve his dream
One gallon of paint will cover 400 square feet. How many gallons of paint are needed to cover a wall that is 8 feet high and 100 feet long?
2 gallons of paint are needed.
Granted there are no doors or windows, a 8ft by 100ft wall will have an area of 800 square feet (multiply length * height, so 8 * 100 = 800).
If each gallon of paint covers 400 square feet, we need to divide our area by 400. 800/400 = 2.
So, 2 gallons of paint are needed to cover the wall.
The factors of production attempt to instill the idea that resources are expensive. Scarce. Unlimited. Needed
Answer: B. Scarce
Explanation:
just took the exam :)
The factors of production attempt to instill the idea that resources are Scarce.
Production effort refers to the labor involved in creating prototypes, pre-production goods, and/or finished goods using administrative and manufacturing process technology.
It including material procurement and management, cost containment management, program management, NPPI, planning, assembly, and test processes.
The interpreter faces the danger of not having enough processing power for the Listening and Analysis Effort if they strive to be extremely eloquent and devote too much processing power to the Production Activity (Gile 1995).
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Raul deposited $3000 into a bank account that earned simple interest each year. After 3. 5 years, he had earned $262. 50 in interest. No money was deposited into or withdrawn from the account. What was the annual interest rate?
Answer:
262.50-3000=222.50
therefore 3000×100/222.50×3.5=$4,719
A thunderstorm adds freshwater to the ocean. What does this do?
Answer:
here
Explanation:
When salt dissolves in water, it comes apart into ions with positive and negative electrical charge. That's actually what we mean by calling a material a salt. Ordinary table salt forms Na+ and Cl-. These charged particles are dragged opposite ways by an electrical field, making an electrical current. So that's how salt water conducts.
What was one result of the bretton woods system brainly.
Answer:
The creation of Bretton Woods resulted in countries pegging their currencies to the U.S. dollar. In turn, the dollar was pegged to the price of gold, and the U.S. became dominant in the world economy.
Explanation:
Which of the following early sociologists believed that the study of society should involve social activism?
Earth's earliest atmosphere may have contained which components.
Why choosing wrong friends may result in conflict with your family.
Answer:
Yeah it's right...
Explanation:
Influencing bad friends in your life may lead you to wrong doings like getting involved in drugs which may lead you to be caught by the police
The sum of two numbers is 640. The quotient of the same two numbers is 7 with a remainder of 64. What are the numbers?
Answer: 568 and 72
Explanation:
so you know answer is real
568
+ 72
------------------
640
The two numbers would be as follows:
568, 72
Find the numbersGiven that,
The sum of the two numbers = 640
The quotient of those numbers = 7
Remainder = 64
Now,
Let the two numbers be x and y.
From the given details, we can form two equations,
[tex]x + y = 640 ...(i)[/tex]
[tex]x - 7y = 64 ...(ii)[/tex]
By subtraction, we get
[tex]8y = 72[/tex]
∵ [tex]y = 9[/tex]
Now by putting the value of [tex]y[/tex] in (i), we get
[tex]x + 72 = 640[/tex]
⇒ [tex]x = 640 -72[/tex]
∵ [tex]x = 568[/tex]
Thus, the two numbers would be 568 and 72.
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Steve has $5. Nancy has 250% as much money as steve. How much money does nancy have?.
Answer:
12.5 dollars
Explanation:
250 percent converts to 2.50 and now you multiply the 5 dollars by 2.50 which gives you $12.5
