Since about 1985 the world population has increased by about what percent.
Answers
Awnser: 27 percent
Explanation: The Census Bureau estimated today that the world's population would reach 6.2 billion by the year 2000, an increase of 27 percent over the 1985 figure.
Related Questions
Question 19 of 20 Tuition and fees, books, supplies, and room and board all figure into a student's: O A. scholarship package. B. cost of attendance. O c. grant package. D. FAFSA application.
Answers
Answer:
the answer is B. grant package
Explanation:
The table above gives the quantities, in moles (mol) of atoms in one mole of glycerol, and the approximate mass, in grams per mole (g/mol) of those atoms. To the nearest percent, what percent of the mass of the mole of glycerol is from oxygen atoms?
Answers
The mass percent of oxygen in glycerol is approximately 52.12%.
What is the mass percent?The molecular formula of glycerol is C3H8O3.
To calculate the mass percent of oxygen in glycerol, we need to know the molar mass of glycerol and the mass of oxygen in one mole of glycerol.
Molar mass of glycerol = (3 × molar mass of carbon) + (8 × molar mass of hydrogen) + (3 × molar mass of oxygen)
= (3 × 12.01 g/mol) + (8 × 1.01 g/mol) + (3 × 16.00 g/mol)
= 92.09 g/mol
The mass of oxygen in one mole of glycerol is 3 × molar mass of oxygen = 3 × 16.00 g/mol = 48.00 g/mol.
Therefore, the mass percent of oxygen in glycerol is:
Mass percent of oxygen = (mass of oxygen / molar mass of glycerol) × 100%
= (48.00 g/mol / 92.09 g/mol) × 100%
= 52.12%
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Formaldehyde is a chemical in e-cigarette aerosol. Choose the true statement(s). Question 5 options: Formaldehyde forms when e-cigarette liquids are heated. Formaldehyde is a cancer causing substance. Inhaled as a gas, formaldehyde has been associated with an increased risk of leukemia. All of the above.
Answers
Formaldehyde is a chemical in e-cigarette aerosol and it is Inhaled as a gas.
What is formaldehyde about?Formaldehyde is said to be a compound that is made by thermal degradation and it is one that is found in e-cigarettes.
Due to the introduction of the e-cigarettes, the use of this chemical compound is known to be high since its a compound tht pose no immediate threat to man when compared to normal cigarettes.
Note that Formaldehyde is a chemical in e-cigarette aerosol and it is Inhaled as a gas.
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The mean score of 8 players in a basketball game was
14.5 points. If the highest individual score is
removed, the mean score of the remaining 7 players
becomes 12 points. What was the highest score?
Answers
Explanation:
Total score for the 8 players = 14.5 * 8 = 116
Total score for the remainding 7 players
= 12 * 7 = 84
Hence the highest score was 116 - 84 = 32.
▶️ the total score made by 8 players
= 14.5 × 8 = 116
▶️ total score of the remaining 7 players
= 12 × 7 = 84
▶️ total score of 8 players - total score of 7 players = 116 - 84 = 32
ANSWER:32 is the highest score..
vWhat is the measure of the unknown angle? Right triangle. Angle formed with base and hypotenuse is 50 degrees. Angle formed with height and hypotenuse is x degrees.
Answers
Answer: Angle formed with height and hypotenuse is 40 degrees
Explanation:
Hi, to answer this question we have to analyze the information given:
Since the triangle is a right triangle it has a right angle that has a value 90 degrees.
Since the sum of the interior angles is equal to 180 degrees:
180 = x +50 + 90
Solving for x:
180-90-50 =x
40° =x
Feel free to ask for more if needed or if you did not understand something.
40 Answer:
Explanation:
Explain how science and technology have led to improved nutrition
Answers
~A certain rectangular prism has a height of h inches, a width that is 3 inches less than its height, and a length that is 4 inches more than its height. Ifthe area ofthe base of the prism is 60 square inches, what is the volume of the prism, in cubic inches?
Answers
Answer:
Volume = 480 cubic inches
Explanation:
We have the following relationships to work with
width w = h -3
length l = h + 4
area of base of prism a = l x w = 60 (1)
area of base in terms of h = (h-3)(h+4) =h² -3h + 4h -12 (2)
Setting (1) = (2) gives
h² + h -12 =60
h² + h -72 = 0
Factoring the LHS we get
(h+9)(h-8) = 0
The solutions for h are
h + 9 = 0 ==> h = -9
h - 8 = 0 ==> h = 8
Since h cannot be negative, h = 8 inches
Volume = base area x h = 60 x 8 = 480 cubic inches
Note
We do not have to calculate length and width separately, but if so,
w = 8 -3 = 5
l = 8 + 4 = 12
Which detail is most relevant to the central idea in this excerpt? washington did not entirely accept the foreign policy recommendations of jefferson or hamilton. Washington did not interfere with the policy making powers that the constitution gave congress. Washington’s secretary of state sided with france during the war between france and england. Alexander hamilton was washington’s secretary of the treasury during his presidency.
Answers
The detail that is most relevant here is option A.
Washington did not entirely accept the foreign policy recommendations of Jefferson or Hamilton.The passage that this question was gotten from was emphasizing the stance of George Washington on the politics that was in the world.
Why George Washington chose neutralityThis was during the French revolution. He refused to be on any of the sides that these two ministers suggested to him.
Out of these two ministers one was supporting the French side while the other was supporting the British. But the president chose the side of neutrality.
The reason for the neutrality stance was the fact that the United States was new. He did not want them to go to war.
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Answer:
A trust me I am right
Explanation:
For the pathway SAT/ACT in WA will my school use my highest sat score or my most recent?
Answers
The specific policies regarding the use of SAT/ACT scores for college admissions can vary from school to school. It's best to consult with your school's admissions office or check their official website to understand their specific requirements and policies.
In general, many schools consider the highest score achieved by an applicant, also known as superscoring. Superscoring involves considering the highest section scores from multiple test administrations to calculate a composite or total score. This allows students to showcase their best performance across multiple test sittings.
However, some schools may have different policies and may consider the most recent score or use a different method to evaluate test scores. It's important to reach out to your school's admissions office or refer to their official documentation to determine how they handle SAT/ACT scores for admissions purposes.
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Quantitative sociologists use and to do their research.
Answers
Quantitative sociologists use and do their research by using surveys, and experiments.
What is Quantitative Research in Sociology?
Data that can be measured must be gathered and analyzed in quantitative research.
This mainly deals with numbers rather than audio and videos.
Why do we need Quantitative sociologists?
Data must be able to be counted or quantitatively calculated to be considered measurable. Moreover, quantitative research gives researchers a way to create statistics using the data they have gathered.
There will be many methods like
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anyone need help i can answer any question in no time
Answers
Answer:
Why were the Portuguese venturing into the Atlantic Ocean?
Explanation:
Live management 2 class
How to gain weight?
What is the average weight for a female who is 5’2??
Answers
Answer:
3010
Explanation:
because its a girl ;)
Answer:
it shoud be between 104 and 131
By artificial selection, certain traits have been selected to be passed on to the offspring in certain tomato plants. Which traits have been strongly influenced by genetics in these tomato plants?
Responses
Answers
Answer:
Fruit size and shape: Some tomato varieties have been bred to produce larger or smaller fruits with different shapes, such as round or oblong.Color: Tomato plants have been bred to produce fruits with different colors, such as red, yellow, orange, green, or even purple.Disease resistance: Tomato plants have been bred to resist certain diseases, such as verticillium or fusarium wilt, or pests such as the tomato hornworm.Flavor: Tomato plants have been bred to produce fruits with different flavors, such as sweet, tangy, or acidic.
Well connected Who has more contacts -males or females? The data show the number of contacts that a sample of high school students had in their cell phones.
Answers
Answer:
the males
Explanation:
Because the males they so many of people to communicate with
How does Zora Hurston introduce the idea that her family was self sufficient ?
Answers
Zora Neale Hurston introduces the idea that her family was self-sufficient by explaining that they grew their own food, made their own clothes, and built their own house.
She also mentions that her family did not rely on anyone else for their basic needs, and that they were able to provide for themselves without any outside help. This is shown in the following quote from Hurston's essay, "How It Feels to Be Colored Me": "We lived in the country and were self-sufficient. We raised our own food, made our own clothes, and built our own house. We were not dependent on anyone else for our basic needs."
By explaining the different ways in which her family was able to provide for themselves, Hurston effectively introduces the idea that they were self-sufficient and did not need to rely on anyone else for their survival. This is an important aspect of Hurston's essay, as it shows the strength and independence of her family, and helps to establish the idea that they were able to overcome the challenges of living in the segregated South.
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A 4% peroxide solution is mixed with a 10% peroxide solution, resulting in 100 L of an 8% solution. The table shows the amount of each solution used in the mixture.
A table titled Peroxide Solution, showing Liters of Solution, Peroxide Concentration and Total. The first row shows 4 percent Peroxide, with 100 minus s, 0.04, and x. The second row shows, 10 percent Peroxide, with, s, 0.10, and y. The third row shows Mixture, and has 100, 0.08, ans z.
What is the value of z in the table?
6
7
8
9
Answers
Answer: C. 8
Explanation: on edge.
Answer:
8
Explanation:
What is the quotient of the complex numbers below?
3 +2i/1-5i
Answers
Answer: B
Explanation: This is the answer because you need to multiply the fractions together
If k(x) = 5x – 6, which expression is equivalent to (k k)(4)? 5(4 4) – 6 5(5(4) – 6) – 6 54 – 6 54 – 6 5(4) – 6 5(4) – 6
Answers
Answer:
D. 5(4)-6+5(4)-6
Explanation:
Answer: Option D is your answer.
Explanation: I am taking the Unit Review right now.
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:
Question 8 of 25
The exact same experiment was conducted 15 times. How many times
should the results have been similar for them to be valid?
A. 15
B. 9
C. 8
D. 6
Answers
To consider the results of the 15 experiments valid, they should be similar in at least 8 of the trials . So, option C is the right choice.
To determine the number of times the results should be similar for them to be considered valid, we need to establish a threshold based on the number of experiments conducted. In this case, the experiment was repeated 15 times.
To determine the minimum number of times the results should be similar for validity, we can calculate the majority. We divide the total number of trials by 2 and add 1. In this case, 15 divided by 2 equals 7.5, and adding 1 gives us 8.
Therefore, for the results to be considered valid, they should be similar in at least 8 out of the 15 trials. This threshold ensures that the majority of the experiments produced consistent results, indicating reliability and reproducibility.
Thus, The correct answer is option C.8
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1. X⁵-4x⁴-2x³-2x³+4x²+x=0
2. X³-6x²+11x-6=0
3. X⁴+4x³-3x²-14x=8
4. X⁴-2x³-2x²=0
Find the roots for these problem show your work
Answers
So the roots of the original equation are:
x = 0, x = 1 + √3, x = 1 - √3
Let's solve each of these equations and find their roots.
x⁵ - 4x⁴ - 2x³ - 2x³ + 4x² + x = 0:
To factorize this equation, we can factor out an "x" term:
x(x⁴ - 4x³ - 4x² + 4x + 1) = 0
Now, we have two factors:
x = 0
To find the roots of the second factor, x⁴ - 4x³ - 4x² + 4x + 1 = 0, we can use numerical methods or approximation techniques.
Unfortunately, this equation does not have any simple or rational roots. The approximate solutions for this equation are:
x ≈ -1.2385
x ≈ -0.4516
x ≈ 0.2188
x ≈ 3.4714
x³ - 6x² + 11x - 6 = 0:
This equation can be factored using synthetic division or by guessing and checking.
One possible root of this equation is x = 1.
By performing synthetic division, we can obtain the following factorization:
(x - 1)(x² - 5x + 6) = 0
Now, we have two factors:
x - 1 = 0
x = 1
x² - 5x + 6 = 0
To find the roots of the quadratic equation x² - 5x + 6 = 0, we can use the quadratic formula:
x = (-b ± √(b² - 4ac)) / (2a)
In this case, a = 1, b = -5, and c = 6.
Substituting these values into the quadratic formula, we get:
x = (5 ± √(25 - 24)) / 2
x = (5 ± √1) / 2
x = (5 ± 1) / 2
So the roots of the quadratic equation are:
x ≈ 2
x ≈ 3
Therefore, the roots of the original equation are:
x = 1, x ≈ 2, x ≈ 3
x⁴ + 4x³ - 3x² - 14x = 8:
To solve this equation, we need to move all the terms to one side to obtain a polynomial equation equal to zero:
x⁴ + 4x³ - 3x² - 14x - 8 = 0
Unfortunately, this equation does not have any simple or rational roots. We can use numerical methods or approximation techniques to find the roots.
Approximate solutions for this equation are:
x ≈ -2.5223
x ≈ -0.4328
x ≈ 1.6789
x ≈ 3.2760
x⁴ - 2x³ - 2x² = 0:
To solve this equation, we can factor out an "x²" term:
x²(x² - 2x - 2) = 0
Now, we have two factors:
x² = 0
x = 0
x² - 2x - 2 = 0
To find the roots of the quadratic equation x² - 2x - 2 = 0, we can again use the quadratic formula:
x = (-b ± √(b² - 4ac)) / (2a)
In this case, a = 1, b = -2, and c = -2. Substituting these values into the quadratic formula, we get:
x = (2 ± √(4 - 4(1)(-2))) / (2(1))
x = (2 ± √(4 + 8)) / 2
x = (2 ± √12) / 2
x = (2 ± 2√3) / 2
x = 1 ± √3
So the roots of the original equation are:
x = 0, x = 1 + √3, x = 1 - √3
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This data gives the average number of hours different students spend on the computer each day. average time (h): 1.6, 2.0, 2.0, 2.0, 1.8, 1.8, 1.5, 2.0, 1.9, 1.6, 1.9, 1.7, 1.6, 1.6, 2.0, 1.8, 1.5, 2.0 create a line plot to display this data. to create a line plot, hover over each number on the number line. then click and drag up to plot the data. students weekly computer time 1.5 1.6 1.7 1.8 1.9 2.0 average time (h) 0 1 2 3 4 5 6 7 8 y label
Answers
The diagram below shows a portion of the fossil record in sedimentary rock. Different rock layers and fossils are clearly visible.
1 point
Captionless Image
Layer A is the oldest.
Layer B is the oldest.
Layer D is the oldest.
They are all the same age.
Answers
Answer:
b
Explanation:
The diagram below shows a portion of the fossil record in sedimentary rock. Different rock layers and fossils are clearly visible shown in Layer B is the oldest. Thus, option B is correct.
How sedimentary rocks are formed?Clastic sedimentary rocks are formed by the weathering process, In this process rocks get breakdown into sand, clay particles by the wind, water, and ice.
Clastic sedimentary rocks are also known as sandstone, and they are made of rocks and minerals. They are classified based upon composition, size, and texture.
Sedimentary, igneous, and metamorphic rocks are the three main categories of rocks. Each of these rocks is the result of physical processes that are a part of the rock cycle, such as melting, cooling, eroding, compacting, or deforming.
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Please answer this question how did you get 5h+9f=72. The question is The total cost of the frisbees and hats is $72, and the cost of two hats and frisbee is $14.50.what is the cost of frisbee?
Answers
Answer:Hi There!
9f+5=77
Make sure all numbers are on the right side of the equation.
9f=77-5
9f=72
Now divide both sides by 9 to isolate f:
f=8
Hope this helps!
Explanation:
Answer:
The cost of a frisbee is 11 dollars.
What are some advantages of the 529 college savings plan?
Answers
Answer:
Tax benefits. Investing in a 529 plan has a range of tax benefits. ...
Low Maintenance. ...
High Contribution Limits. ...
Favorable Financial Aid Treatment. ...
Flexibility. ...
Penalty for Non-Qualified Withdrawals. ...
State Income Tax Recapture. ...
Limited Investment Choices.
What Do You Hope to Get Out of High
School?
Answers
Essay Theme: "The Challenges of Online and In-Person Learning in a
Pandemic Environment"
Answers
Answer:
01211 error code 0xc00000e9
Explanation:
which has the lowest albedo
A. a white sidewalk
B. an icy lake
C. a blacktop highway
D. a pond
Answers
Answer:
C. a blacktop highwayl hope it helps
The average age of a breed of dog is 19. 5 years. If the distribution of their ages is normal and 20% of dogs are older than 22. 6 years, find the standard deviation
Answers
The standard deviation of the ages of this breed of dog is approximately 4.4 years.
To find the standard deviation, we can use the concept of z-scores and the cumulative distribution function (CDF) of a standard normal distribution. Let's denote the average age as μ (mu) and the standard deviation as σ (sigma).
Given that the average age of the breed is 19.5 years, we can set μ = 19.5. We are also given that 20% of the dogs are older than 22.6 years. Using the z-score formula, we can calculate the z-score corresponding to this percentile:
z = (x - μ) / σ
Where x is the given value (22.6 years) and z is the z-score. Rearranging the formula, we can solve for σ:
σ = (x - μ) / z
Plugging in the values, we have:
σ = (22.6 - 19.5) / z
To find the z-score corresponding to the 20th percentile, we can use the inverse CDF of the standard normal distribution. Using statistical software or a z-table, we find that the z-score corresponding to the 20th percentile is approximately -0.84.
Substituting the values, we get:
σ = (22.6 - 19.5) / -0.84 ≈ 3.7 / -0.84 ≈ -4.4
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The average age of a breed of dog \(= μ = 19.5\) yearsThe percentage of dogs that are older than 22.6 years = 20%Let's calculate the z-score of the given percentage\(:z = (x - μ) / σ20 = (22.6 - 19.5) / σσ = (22.6 - 19.5) / 0.84σ = 3.69 / 0.84σ = 4.39\) (approximately)
Therefore, the standard deviation is approximately 4.39 years.Explanation:Given, the average age of a breed of dog\(= μ = 19.5\)yearsThe percentage of dogs that are older than 22.6 years = 20%Let's calculate the z-score of the given percentage:z = (x - μ) / σ
Where\(,x = 22.6μ = 19.5σ =\)Standard deviationThen,\(20 = (22.6 - 19.5) / σσ = (22.6 - 19.5) / 0.84σ = 3.69 / 0.84σ = 4.39\)(approximately)Therefore, the standard deviation is approximately 4.39 years.
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During aerobic respiration electrons travel in which sequence.
Answers
Answer:
Glucose → NADH → electron transport chain → Oxygen
Explanation: