If the radius of a circle is increased by a factor of x, then the area is increased by what factor?
Given parameters;
The radius of a circle is increased by a factor of x;
let the radius of the circle = r;
The increased radius = rx
Area of a circle is given as πr²;
Initially, the area of the circle = πr²
where r is the radius
New area after the increase = π x (rx)² = πr²x²
To compare the factor with which the area increased;
Factor = [tex]\frac{New area}{original area}[/tex] = πr²x² / πr² = x²
The area increased by a factor of x²
I need to know the answer
Explain why our Earth is fragile?
Answer:
The Earth is different because it has life on it…obviously. And the factors that make it so, is why it is regarded as a fragile planet.
Explanation:
For example, one of the reasons Earth supports life is its location in the solar system. The venerable Habitable Zone. If the earth was, say in Venus’ orbit for example, runaway greenhouse effect would create so much heat, it would not be able to hold surface water.
So we’re lucky to be in the correct distance from the Sun, however, distance is not the only factor here. If the planet was covered in ice for example, its reflectivity (also called albedo) would cause the surface temperature to be either cool, if albedo is high and vice versa.
So, again, we’re lucky to have just the right amount of surface reflectivity. How about our atmosphere? The atmosphere provides us with life sustaining weather, temperature regulation and shields us from deadly radiation. The composition of our atmosphere is crucial in how atmosphere interacts with solar radiation. Some gases, such as Carbon Dioxide and Water vapor, allow visible light to pass through which is good for those important things like…seeing. Unfortunately, these same gases prevent radiation from being reflected back out into space in what is referred to as The Greenhouse Effect. Every planet with an atmosphere has this at different degrees and is what heats up the planets. The dissipation of the greenhouse gases also determines for how long the planet will retain its heat, for example, water vapor may take a week while Carbon dioxide takes about 100 years. Again, luckily for us, we only have a trace amount of Carbon dioxide, less than 0.1% of it.
How about the one ingredient that we can’t do without? Oxygen? It turns out that we don’t have that much in the atmosphere. Only about 21% of our atmosphere contains oxygen. If we had less, we would have weak hearts, prone to diseases, slow and probably still be in the dark ages. If there was too much of it and someone farted, the atmosphere would simply combust and murder everyone since oxygen is highly reactive. The highest oxygen content that could be safely stored in our atmosphere is about 35%. Luckily we have giant recycling plants called…well, plants. We also have oxygen reserves in our oceans, crust and beneath ice caps.
The odds for all these factors that have occurred on our little blue marble, albeit over millions of years, to be replicated on another planet and support life as we know on earth is literally a 1 in a not-happening.
All these things are maintained by a very delicate natural balance and can unfortunately be undone by both natural and man-made effects. Hence, our planet is very fragile.
Answer:
if the earth tips, the weather would break off some of the earth and the ocean would cause tsunamis like crazy. hope this helped :)
Explanation:
Because mountain force the prevailing winds to rise, causing condensation then precipitation , how does this impact climate distribution ?
Answer:
sdfsdf
Explanation:
Answer:
Coriolis forces create prevailing westerlies in the mid-latitudes. ... The result is an increase in the salinity of ocean waters.
Explanation:
The single greatest factor in creating a certain biome, whether it be rainforest, savanna (tropical) grassland, desert, or sub-Arctic fir forest, is...
a
climate.
b
types of animal communities that evolved there.
c
human activities such as agriculture.
d
migration patterns of snow geese.
Answer:
climate.
Explanation:
Animals evolve to adapt to the biomke, not the other way around, Humans only do agriculture in the right biomes with the right climate, snogeese have nothing to do with this leave them alone
explain the difference between wild and domesticated animals and plants.
Answer:
the demesticated animals and plants arent wild and are eaither safe to eat or to keep as pets
Explanation:
Answer:
Well, here is an example of a major difference between a domestic and wild animal.
Explanation:
Wild horses handle their hooves by traveling long distances (usually around 20 - 50 miles a day) over rough ground. This keeps their hooves healthy by building hard, durable hooves that don't need shoeing or annual trimming of the hoof. Also, natural selection only permits the survival of the strongest and the fittest. So wild horses also tend to have genetically healthier hooves.
However, our domesticated horses are not typically born with hooves like their wild cousins because they are bred for other traits and other reasons and don't have access to the same environment as wild ones do, such as rough terrains and the possibility to roam on long distances. This means more fragile hooves that require our care to keep them healthy.
Have a great day!
Are unicorns real? I really need to know!!!
Just kidding this is for anyone who needs any extra points.
Explanation:
Most definatley! They are so real!
Answer:
Yes All you need is a goat and a imagination
Explanation:
Explain how the topographical features and
Potwar plateau affect the economic activities
and lifestyle of the people.
Answer:
Potwar plateau is a plateau present in the north eastern region of Pakistan. It is bounded by river and plains on all the sides. Rainfall being good compared to the arid and semi arid regions make the region suitable for cultivation. The chief crops seen in this region are wheat, barley, sorghum, and legumes, onions, and tobacco etc are grown in this region due to good fertility if the region. Wide range of wildlife present also add to the diversity of the region. The oil fields present provide economic income and employment.
15 POINTS URGENT NEED HELP!!!!!!!!
What season would the Southern Hemisphere experience at Position W?
True or false -the secondary sector is manufacturing?
Answer:
True
Explanation:
Manufacturing and Industry sector known as the secondary sector, sometimes as the production sector.
Hope this helps and have a great day!
If two seismic stations receive data from an earthquake, the quake's
location can be determined.
True
False
Which tool to study space is Least expensive?
Answer:
ground based telescope. Think of the cost of fuel in all the other options to launch them into space. A telescope is effective here on Earth.
Explanation:
Pull factors leading to immigration include job opportunities, political and religious freedom, access to education, and the prospect of a better life for oneś children.
In the 20th Century these pull factors have encouraged migration primarily...
a
from less-developed (poor) countries to more-developed countries.
b
among people with similar religious beleifs.
c
among people with similar eating habits
d
from more developed (rich) countries to less developed (poor) countries
Answer:
The migration during the 20th century has been mostly from less-developed (poor) countries to more-developed countries.
Explanation:
A is correct because during the 20th century, with the migration policies being made much more friendly and open, the people from the less-developed countries where the living conditions were terrible, to the more-developed countries where they could have much better lives.
B is not correct because it is actually the opposite, where people from different religious beliefs than those of the people of the county of their choice, have migrated and made much more diverse societies.
C is not correct because such migration has not been recorded so far.
D is not correct because the people from more-developed countries usually only visit the less-developed countries as tourists, but very very rarely migrate to them as they are aware of the risks and bad living conditions.
Pls help ASAP, will mark brainliest!
Answer:
The answer is B. They were usually owned by absentee landlords who lived in Spain.
Explanation:
Read the map.
A map titled Physical Features of East Asia. A key shows Lowlands in green, Highlands in yellow, and mountains with brown triangles. China is surrounded by the following countries: India, Pakistan, Afghanistan, Kazakhstan, Mongolia, North Korea, South Korea, Laos, Thailand, and Bangladesh. The Yellow River is to the north and the Yangtze River is to the south in central China. The Himalayas are on the south and southeast of the Plateau of Tibet while the Qin Mountains are on the northeast side.
Which geographical feature separates China and Mongolia?
Gobi Desert
Loess Plateau
Eastern Steppe
Manchurian Plain
The answer is Gobi Desert.
Is Gobi Desert Hot or cold?Cold deserts form at higher latitudes. The Patagonian desert in South America and the Gobi desert in Asia are cold deserts. Hot deserts are found in large bands that straddle the Tropic of Cancer and the Tropic of Capricorn, on either side of the equator. The Sahara and Kalahari deserts in Africa are hot deserts.
Why is the Gobi Desert famous?The Gobi is not only famous for dinosaur species discovery but also well known for its rich natural resources. The desert is rich in copper, gold, and coal deposits. One of them is called Oyu Tolgoi which is the world's third-largest copper and gold mine.
Learn more about Gobi Desert here https://brainly.com/question/1828157
#SPJ2
Answer:
the answer is c:3 near changbai mountains
Explanation:
I got it right on edgen
Make sure to tell me why it the answer.
Question: If you travel to Japan and find a McDonald's serving a fish sandwich, this is an example of
Question options:
A. Functional regions
B. Traditional culture
C. Cultural diffusion
D. Perceptual regions
Answer:
C
Explanation:
Function regions is cities and regions around them, Perceptual is just a region of a country(both are not international) and Fish sandwiches are not tradition Japanese culture
Help!!! I know this question has been asked already but i still need an answer, thanks.
While standing in the Mountain Time Zone, the Pacific Time Zone would be_
1. One Hour Later
2. One Hour Earlier
3. Two Hours Later
4. Two Hours Earlier
Answer:
2. One hour earlier
Explanation:
Mountain and Pacific time zones are one hour different. When it is noon in Mountain, it is 11am in Pacific
what is one key characteristic of government in the united states?
A. The federal government has little political power.
B.elected officals control the government
C.all citizens vote on every major law and policy
D.each state has complete independence
Answer:
i believe that it is B
Explanation:
The fact that elected officials oversee the government is a major aspect of American governance. As a result, choice (B) is accurate.
What is meant by political power?According to French and Raven, power must be separated from influence in the following way: power is the situation that exists in a connection, A-B, such that an attempt by A to exert influence over B increases the likelihood that A will effect the change in B that A desires.
Considering it in this way, power is basically relative; it depends on the precise interpretations A and B both apply to their connection and necessitates B's acceptance of a trait in A which would inspire B to change in the manner A wishes. To achieve the intended result,
Learn more about political power, from :
brainly.com/question/3379170
#SPJ2
Help me ASAP
What is an oasis?
Answer:
an oasis is an an area made fertile by a source of freshwater in an otherwise dry and arid region.
Explanation:
description of compromise
Answer:
a concession to something derogatory or prejudicial a compromise of principles.
Explanation:
how do you know an earthquake is about to happen
Answer:
You can't really predict it but if you have an animal they can sense when it's coming by they're body language
Explanation:
Seismograms come in handy for locating earthquakes too, and being able to see the P wave and the S wave is important. You learned how P & S waves each shake the ground in different ways as they travel through it. P waves are also faster than S waves, and this fact is what allows us to tell where an earthquake was.
Answer:
there are some featured computer there are used to find out earth quake. in olden time there where seismogram. please don't forget to follow me
Name 4 layers of the internal structure of the earth
Answer: oceanic and continental crust are two types of crust. Mantle, crust, inner core, outer core are the layers of earth
Explanation:
Which of the following is most influenced by tectonic plats movement
Answer:
The physical topography of a mountainous region is the most influenced by the movement of tectonic plates.
Explanation:
The first option is not correct because the precipitation at a certain place is influenced by numerous factors, not just by the landforms created by the movement of the tectonic plates.
The second option is not correct because the seasonal changes in the weather are mostly due to the latitude at which a place is located.
The third option is not correct because the distribution of biomes depends on numerous factors, not just one.
The fourth option is correct because the physical topography of a mountainous region is directly connected with the movement of the tectonic plates, as that is the process that creates these regions.
which one of the following graphs shows a direct variation
Answer:
A graph shows direct variation if it goes throught the origin. The equation is y=kx, where I is a constant, which is apparent when we write the equation as yx=k. In slope intercept form, the equation form, the equation would be y=mx+b, where m=k, and b=0
can someone please help me
I'm pretty sure it urbanization
Score:
Based on the scores in the chart above, which restaurant is the BEST choice for dinner tonight and why?
A. Ku's Chinese Buffet, because it has a total score of +2
B. Ku's Chinese Buffet, because it has a total score of +12
C. Umberto's Italian Restaurant, because it has a total score of +3
D. Umberto's Italian Restaurant, because it has a total score of +9
Answer:
I can't be sure without seeing the diagram but I believe the answer is B.
Explanation:
Ku's Chinese Buffet has the highest score at +12.
Answer:
b.
Explanation:
When lake or ocean waters are anoxic, it means that they
A. have grown too warm, and fish begin to die
B. freeze over in winter
c. do not contain enough oxygen to support plant and marine life
D. are full of life, with diverse species of wildlife
Please select the best answer from the choices provided
ОА
B
с
Answer:
C. Do not contain enough oxygen to support plant and marine life
How did Hammurabi's law protect the citizens of the Babylonian Empire? The law punishes all people who bring an accusation. The law provides for a jury from the same social class. The law punishes people for crimes they are accused of committing. The law discourages people from wrongly accusing someone of a crime.
Answer: The law punishes people for crimes they are accused of committing.[c] (3) bet me this is the correct answer
Explanation:
What are the primary causes of poverty in Africa?
Who is benefiting from current international aid programs? Who is not? Why?
What are some potential solutions to address this issue of poverty in Africa?
How can these potential solutions make an impact?
Answer:
For the first question, the answer for it is that they have poor governace, poor education, they can't afford good healthcare and finnaly they have low shelters ( btw i tried my best )
Which of the following is an example of a functional region?
Asia
Midwest
Silicon Valley
Amazon Basin
Answer:
Silicon Valley
Explanation:
Silicon Valley, in the southern San Francisco Bay Area of California, is home to many start-up and global technology companies.
