Identify the factors of x2 − 8x − 20.
(x + 4)(x − 5)
(x + 5)(x − 4)
(x − 10)(x + 2)
(x − 2)(x + 10)
Answer:
the answer is (x − 10)(x + 2) or C
Explanation:
The factors of x2-8x-20 is (x-10)(x-2). The correct answer is option C.
What is factorization?Factorization or factoring consists of writing a number or another mathematical object as a product of several factors, usually smaller or simpler objects of the same kind.
Solving the factorization as:
[tex]x^{2}[/tex]-8x-20
= [tex]x^{2}[/tex]-10x=2x-20
= x(x-10) +2(x-10)
= (x-10) (x+2)
Therefore the correct answer is option C.
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A _____________ forms as a result of lava that has cooled at the top of a volcano.
A caldera forms as a result of lava that has cooled at the top of a volcano.
This volcanic feature formed when a large eruption of magma, or lava, leaves a gigantic empty chamber underground.
Example is the large, mostly submerged caldera Santorini in the southern Aegean Sea, 120- kilometers north of Crete in Greece.
Which Central American country is home to the Baboon Sanctuary – dedicated to protecting the black howler monkey population?
Question 13 options:
Honduras
Belize
Costa Rica
Panama
Which type of graph is best for plotting percentages of a whole value data set
A.bar graph ( is incorrect)
B.circle graph
C.histogram
D.line graph
Which of the following is not a factor that is increasing the risk of a widespread famine before 2050? A. water scarcity B. overpopulation C. agricultural shift to biofuel production D. increased crop diversification
The correct answer is - D. increased crop diversification.
By increasing the crop diversification there will be no problems in causing widespread, or any type of famine whatsoever. In fact, this can be very beneficial, and can actually help with the expected problem in the near future. With bigger diversification of the crops, we will get new types of crops that will be more resilient to certain types of climates, or even pests, and they can be grown on places where they typically can not be grown with their original genetics.
Answer:
D. Increase crop diversification
Explanation:
In what stage of demographic transition are most countries that send out immigrants?
Match the energy source in column 1 to its characteristic in column 2.
A. Coal 1. Made from recently grown plant matter
B. Hydroelectricity 2. Creates toxic waste
C. Nuclear 3. Fossil fuel
D. Ethanol 4. Uses dams
Answer:
Coal : fossil fuel
Hydroelectricity : uses dams
Nuclear : creates toxic waste
Ethanol : made from recently grown plant matter
Explanation: APEX
Final answer:
Coal matches with fossil fuel as it is a type of fossil fuel. Hydroelectricity is characterized by the use of dams. Nuclear energy is associated with the creation of toxic waste due to spent fuel storage, and Ethanol is made from recently grown plant matter.
Explanation:
The question requires matching an energy source with its characteristic. The matchings are:
Coal - Fossil fuelHydroelectricity - Uses damsNuclear - Creates toxic waste (referring to the storage of spent nuclear fuel)Ethanol - Made from recently grown plant matterCoal is indeed a fossil fuel, derived from ancient organic material. Hydroelectricity is harnessed using dams that capture the energy from flowing water.
Nuclear energy relies on the process of nuclear fission, and though it does not produce carbon emissions, it does create toxic waste that must be carefully stored for long periods. Ethanol is a biofuel, often made from corn or sugarcane, which is plant matter that has been recently grown.
Why is a MSA an imperfect measurement for assessing a functional area?
Which phrase best describes the word definition in an axiomatic system?
An axiomatic system consists of some indistinct terms (primitive terms) and a listing of statements, called axioms or postulates, concerning the indistinct terms. One receives a mathematical theory by establishing new observations, called theorems, using only the axioms (postulates), logic system, and previous theorems.
The maximum height of a cinder cone volcano is usually around _________ ?
Which of the following statements best represents how land serves as a natural resource? A. It regulates oxygen levels in the atmosphere. B. It produces freshwater. C. It generates hydroelectric power. D. It provides nutrients to crops.
Answer:
D. It provides nutrients to crops.
Explanation:
The land as a natural resource is represented by the statement of the nutrients in the form of the crops and is also rich in the various organic and the inorganic components and hence this shows the diversity of the land in terms of the soil contents. Thus the land is best represented by the biodiversity of the flora and the fauna and hence is also responsible for the flow of the water cycle and the nutrient flow in the ground ecosystem.Two major sources of energy, coal and oil shale, are considered ________ sedimentary rocks.
All of the following statements are true except _______.
(A) recycling petroleum-based products conserves resources. (B) air quality is important everywhere, not just in large cities. (C) human activity is limited by the availability of resources. (D) alternative energy sources are often too impractical to use.
Answer: All the following statements are true except A, recycling petroleum-based products conserves resources.
Caves are formed from:
freezing water
sedimentation
mechanical weathering
chemical weathering
Caves are formed by a type of chemical weather called carbonation.
The answer is d. chemical weathering.
the answer here is D. Chemical weathering
:)
Reason:
Freezing water doesn't make sense...at all
sedimentation is "the process of settling or being deposited as a sediment."
mechanical weathering is "Mechanical weathering is the process through which large rocks are broken into increasingly smaller pieces. ... It involves mechanical processes that disintegrate a rock, like tree roots growing in cracks in a rock and eventually breaking it up. Mechanical weathering doesn't change the chemical nature of the rocks."
sry that one was long... :)
and chemical weathering is: "the erosion or disintegration of rocks, building materials, etc., caused by chemical reactions"
hope this healps and i hope you have a nice day!!
Georgia ranks third in the nation for the number of native freshwater fishes; only Alabama and Tennessee have more species. About 265 species are considered native to the state. The aquatic biodiversity continues to decline in Georgia's freshwater creeks and streams as humans modify the landscape, mainly because of stream habitat alterations and loss caused by urban development.
As we see an increase in habitat alterations, some fish exhibit behavioral adaptations that help with the survival of their young. All BUT ONE is a behavioral adaptation you might see in a freshwater fish species in Georgia. That is:
A) The male and female shiners will swim along the crevice of large rocks and deposit eggs and sperm in the crevice.
B) Male and female catfish exhibit parental care, which includes nest site preparation, fanning of the eggs with their fins, and guarding of the eggs and larvae.
C) The male bluehead chub constructs a gravel mound for spawning. Several other minnow species, known as nest associates, will also use the chub's nest for spawning
D) Stonerollers are sometimes referred to as creek cows because of their behavior of grazing on algae that helps to transfer large amounts of energy through a food chain.
Answer:Researchers at the University of Georgia have evaluated trends in streamside forests in areas within roughly 400 feet of the state’s streams and rivers. A decline in streamed forests is evident across much of the state. Between 1974 and 2005, 41 of the state’s 52 large watersheds showed declines in riparian forests. The greatest losses were in the Upper Chattahoochee, Middle Savannah, Upper Ocmulgee, and Middle Chattahoochee.
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Explanation:
Heat from earth's interior and pressure from overlying rock transforms the remains of sediments into
Mandarin Chinese is not spoken widely outside of China, yet it is spoken by more people than any other language. What makes this possible?
A. Mandarin Chinese is used when conducting international business.
B. China's population is the largest in the world.
C. This is not possible.
D. All languages spoken in the world are found within the Sino-Tibetan language family.
Answer:
B. China's population is the largest in the world.
Explanation:
Mandarin, also known as traditional Chinese, is the name given to a set of Chinese dialects spoken in central, northern and southwestern China. It is the main dialect spoken in China with approximately 845 million speakers (first language). It is also the most widely spoken language in the world.
How has technology helped make northern Canada less remote?
Which is the least dense? younger oceanic crust, older oceanic crust, earth's core,?
Which was an idea used to dispute the theory of plate tectonics?
Final answer:
Initially, the theory of plate tectonics faced skepticism due to the lack of an explanatory mechanism and the prevailing belief in uniformitarianism. Acceptance grew after seafloor spreading was discovered and further evidence accumulated, leading to the recognition of plate tectonics as a key geological theory.
Explanation:
Ideas used to dispute the theory of plate tectonics primarily revolved around the lack of a mechanism to explain continental drift and the dogmatic acceptance of uniformitarianism, which emphasized the permanence of continents. When Alfred Wegener proposed the theory of continental drift in 1912, he cited evidence such as complementary continental shapes, similar fossils in widely separated lands, matching mountain ranges, and paleoclimate indicators. However, without a credible explanation for the forces behind continental movement, his ideas faced skepticism. It was not until the 1950s and 1960s, with the discovery of seafloor spreading and the accumulation of evidence such as ocean floor mapping, that the concept evolved into the modern understanding of plate tectonics. The transition from hypothesis to theory signified a major shift in geological science, eventually leading to widespread acceptance, further supported by ongoing GPS and earthquake data analyses.
Why not all movement along faults produces earthquakes?
Answer:
There are only 4 types (Normal, Reverse, Strike-slip, Oblique-slip) of fault movements that cause earthquake.
Explanation:
There are four main types of faults that produces earthquakes:
Normal faulting occurs where the crust is being pulled apart. Reverse faulting occurs where the crust is being compressed. Strike-slip movement occurs when crustal blocks move sideways past each other, usually along nearly-vertical faults. An oblique slip comprises numerous groupings of these basic movements.Faults can be as short as a few meters and as long as 1000 km.
Learn more:
Compare and contrast a fault and a fault zonebrainly.com/question/264532
What kind of fault is the San Andreas fault ?brainly.com/question/11998649
Keywords: faults, normal, reverse, strike-slip, oblique-slip, earthquake
All movement along faults does not produces earthquakes because:
There are different types of faults which causes eqrthquakes
According to the given question, we are asked why all movements along faults does not produce earthquakes when triggered.
As a result of this, we can see that there are four main types of faults which has different effects on the topography of the earth and they are:
Normal faultReverse faultStrike-slip faultOblique-slip fault
With this in mind, we can see that there are different effects which these faults have and that is why all movement along the faults cannot produce an earthquake because some of them are not just enough to cause an earthquake.
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4.
What is the most common element found in the composition of minerals?
The most common element found in the composition of minerals is Oxygen.
What is Oxygen?Oxygen is the substance component with the image O and nuclear number 8. It is an individual from the chalcogen bunch in the occasional table, a profoundly receptive nonmetal.
Many significant classes of natural particles in living creatures contain oxygen iotas, like proteins, carbs, and fats, as do the significant constituent inorganic mixtures of creature shells, teeth, and bone. The greater part of the mass of living organic entities is oxygen as a part of water, the significant constituent of lifeforms.
Oxygen is consistently recharged in Earth's environment by photosynthesis, which utilizes the energy of daylight to deliver oxygen from water and carbon dioxide. Oxygen is excessively synthetically receptive to stay a free component in air without being persistently recharged by the photosynthetic activity of living organic entities.
Therefore it is Oxygen which basically is an element found in the minerals.
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Why do tourists often visit the Caribbean islands?
A) The islands have a humid climate and agriculture.
B)The islands have plantations and an arid climate.
C)The islands have beautiful beaches and a tropical climate.
D) The islands have a tropical climate and European colonization.
Answer:
C is correct
Explanation:
Who was the highest deity in the Shang religion?
The dust bowl is an example of
Which of the following countries had the longest civil war?
A) Angola
B) Liberia
C) Democratic Republic of Congo
D) Ethiopia
what are the main exports of central America?
a) Bananas and Papaya
b) Guava and Avocado
c) Cotton and Pineapple
d) Bananas and Coffee
Bananas and Coffee, are the main exports of Central America. Bananas and Coffee are the large amount of the exports. Thus, option (d) is correct.
What is exports?
The term exports refer to the product are the sale to the another country and the state. The export are the important of the every country. The China are the large level of the goods are the exports. The exports are the exchange of the goods with the government taxes. The taxes are the imposed by the government.
The Central America is the large level of the import and the export. The America are the mostly export in the fruits like Bananas and the coffee was the export are the large amount. The America wealth are the secret is the export the fruits and the consumer goods and also the export the large amount of the automobiles.
As a result, Bananas and Coffee, are the main exports of Central America. Therefore, option (d) is correct.
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Liquefaction occurs when an earthquake’s violent movement suddenly
a. causes friction along fault lines.
b. produces a giant tidal wave.
c. allows structures to absorb energy.
d. turns loose soil into liquid mud.
When did the practice of fair trade start?
Question 20 options:
1940s
1960s
1980s
2000s
What crops grow abundantly in the Central Valley of Chile?
A) fruit, vegetables, and wine grapes
B) sugar cane, rice, and oranges
C) cacao, coffee, and bananas
D) corn, wheat, and barley
Answer:
A
Explanation: