Mamadou leans a 18-foot ladder against a wall so that it forms an angle of 75^{\circ}
∘
with the ground. What’s the horizontal distance between the base of the ladder and the wall? Round your answer to the nearest tenth of a foot if necessary.
The horizontal distance between the base is given as 4.823 meters
How to solve for the horizontal distanceTo find the distance, we would have to make use of the trigonometric formula
Tangent = opposite / adjacent
We know that the angle is 75 degrees, so we can substitute this value into the formula:
tan(75) = h / x
We also know that the length of the ladder is 18 feet, so we can substitute this value for h:
tan(75) = 18 / x
To find the value of x, we can solve for x by dividing both sides of the equation by 18:
x = 18 / tan(75)
The horizontal distance between the base of the ladder and the wall is x = 18 / tan(75)
x = 18 / 3.732
x = 4.823 meters
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The horizontal distance between the base of the ladder and the wall is 2.4 feet.
How can we calculate the base of the ladder?To find the horizontal distance between the base of the ladder and the wall, we can use the tangent function of the angle that the ladder makes with the ground.
tan(75) = Opposite / Adjacent
Opposite = 18 (length of ladder)
Adjacent = x (horizontal distance between base of ladder and wall)
So,
tan(75) = 18/x
Solving for x, we get
x = 18/tan(75)
rounding to the nearest tenth of a foot, we get x= 2.4
So, the horizontal distance between the base of the ladder and the wall is 2.4 feet.
Therefore, the correct answer is as given above
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What are the 4 main points of Darwin's theory?
The four main points of Darwin Theory are inheritance, variation selection and time. Theory of Darwinism states that an organism or a specie evolve due to natural selection process which increases their ability to adapt, reproduce and compete.
In evolution theory of Darwinism, Charles Darwin proposed that organism or species changes over time. New existing species come from the previous species and all of them have a common ancestor.
However, he states that there are some genetic differences among all species that differentiate them from each other.
The factors that led to the proposition of the evolution theory of Darwinism are natural selection process, common ancestor, reproduction in species and gradualism.
Simply put, an organism or specie evolves as a result of variation, time and natural selection process that helps them evolve or change with the passage of time.
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How did the railroad change America?
Some of the ways the railroad changed America include: decreased travel time and the creation of a more interconnected society.
The American railroads created a more interconnected society. Also, because of the decreased travel time, counties were able to work together more easily. This, of course, would strengthen the American economy.
The available markets for goods were expanded since the advent of a railroad. The American railroads allowed the movement of a wider variety of goods much farther distances. These railroads had a two-fold effect on the economy: sellers found new markets to sell their goods and individuals were able to obtain goods that had been previously very difficult to get or unavailable.
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How has the EPA improved air quality over the last 30 years by monitoring pollutants and passing regulations to reduce?
The EPA has made numerous efforts to lower air pollution, and what they have accomplished is described here.
To be able to respond to this question, we must contrast the pollutant concentrations at the start of the monitoring (in 1980) with the values at the conclusion (in 2010). We are unable to include PM10 and PM2.5 values from 1980 in our study since we are unable to view them. We can then examine lead, ozone, NO2, SO2, and CO, with lead showing the greatest drop as of 2010. EPA experts create cutting-edge techniques for an accurate and precise measurement of these contaminants in outdoor air to support monitoring operations. States and other monitoring organizations use these techniques, known as Federal Reference Methods (FRMs), to evaluate the implementation steps required to meet the federal "Clean Air Act's National Ambient Air Quality Standards."
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Answer:
The answer is A. by monitoring pollutants and passing regulations to reduce air pollution
Explanation:
Took the quiz and got a 100%.
Does water and land reflect or absorb more radiation?
Land surfaces retain greater heat because they take in more solar radiation.
Which one absorbs heat more quickly, land or water? Water absorbs heat more slowly than land because it has a higher specific heat than dry soil. Large bodies of water typically assist in regulating the temperature of nearby land because of the water's high heat capacity. Which one absorbs heat the most? Light is energy, hence the lighter a thing absorbs, the more energy it absorbs in the form of heat. The color black absorbs the greatest heat. A dark object absorbs all light wavelengths and does not reflect any. Land surfaces absorb substantially more solar radiation than water does because water reflects the majority of the solar radiation that reaches its surface back into the atmosphere. Land surfaces retain greater heat because they take in more solar radiation.
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Which is the best definition of groundwater?
Water that is found underground in saturated regions under the surface of the earth is known as groundwater. The water table is the term for the saturated zone's top surface.
Contrary to common perception, subterranean rivers are not created by groundwater. Similar to how water fills a sponge, it fills the pores and cracks in subterranean materials like sand, gravel, and other rock. Rock materials are referred to as aquifers if groundwater can be pumped out of them or runs naturally out of them.
In an aquifer, groundwater normally travels at a rate of 7 to 60 centimeters (3 to 25 inches) each day. Water might therefore last hundreds or even thousands of years in an aquifer. Nearly everywhere contains some level of groundwater. The depth and level of the water table can vary based on a variety of circumstances. The ground water may increase due to strong rain or snow, or it may sink due to intensive pumping of groundwater supplies.
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Is Fish renewable or nonrenewable?
Fish, shellfish, and marine algae populations might naturally repopulate. They can be replenished. To put it another way, we can gather fish without jeopardizing the species as long as we stay inside the established bounds.
Sustainability is a constant concern when it comes to energy sources. For us to heat our homes, power our cities, and operate our cars, resources must produce adequate energy. However, it's equally crucial to think about how these resources might be used in the long run. Some resources will essentially never be depleted. These have the label "renewable resources." Additionally, clean energy is produced by renewable resources, which means fewer emissions of greenhouse gases and other pollutants that worsen climate change.
Renewable energy sources are able to provide a consistent source of clean energy that cannot be exhausted.
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HELP pls will mark you the brainliest
Answer:
Mixed, D
Explanation:
A mixed economy is one in which there is a combination of both a free market system and a government controlled system. In a mixed economy, the government may have a degree of control over certain sectors of the economy, such as natural resources or public utilities, while allowing private enterprise to operate in other areas. This can include regulations and laws that the government has in place to protect consumers and the environment, and also the government's ability to influence the economy through fiscal and monetary policies.
What form of agriculture is found in all regions of the country?
Answer:
Explanation:
subsistence agriculture
What are the 4 types of political organizations?
Answer:
There are many different ways to classify political organisations, but one common framework is to categorise them into four types:
Political parties: These are organisations that seek to win elections and hold political power. They typically have a defined ideology or platform and recruit candidates to run for office under their banner.
Interest groups: These are organizations that seek to influence public policy without necessarily seeking to hold political power.
Pressure groups: These are similar to interest groups but tend to be less professional. They are often not established and are not necessarily registered as legal entities.
Authoritarian: These organisations are characterised by a strong central government that has complete control over the political system.
Explanation:
PLEASE HELP!!! 60 POINTS!! what are the main strengths & weaknesses of the United Nation's 1948 Genocide Convention & the International Criminal Court (ICC)? NO PLAGIARISM.
Importantly, the Convention places the onus of taking action to prevent and punish the crime of genocide on State Parties .
What was Genocide Convention ?, including by passing pertinent laws and punishing offenders, "whether they are constitutionally responsible rulers, public employees, or private individuals" (Article IV).
The Holocaust and other atrocities committed during World War II that lacked a proper classification or description led to the creation of the Genocide Convention. Raphael Lemkin, a Polish-Jewish lawyer, advocated for the genocide's recognition as a crime under international law when he first used the phrase to characterise Nazi tactics in occupied Europe and the Armenian genocide in 1944.
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what giant ocean once surrounded the ancient supercontinent pangea?
Answer:
Panthalassa
Explanation:
52x+2+74=180 the figure is a parallelogram.solve for x
the value x of the parallelogram figure is 2.
What is the area of a parallelogram?The region or space a parallelogram occupies in a two-dimensional plane is known as the area of a parallelogram. A particular kind of quadrilateral is a parallelogram. A quadrilateral is referred to as a parallelogram if it has two sets of parallel opposite sides. A parallelogram can be anything from a rectangle to a square to a rhombus. Shapes—2D or 3D—are the foundation of geometry. Each of these forms has a unique set of features and uses a separate area formula. A parallelogram's area can be determined by multiplying its base by its altitude. A parallelogram's base and height are perpendicular to one another.
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How many types of organizations are there?
Answer:4 main types
Explanation:
:D
During the summer months in Earth's Northern Hemisphere, carbon absorption of plants on land increases.
Which statement best describes the reason for this?
Select one:
Sunlight is more abundant in summer months, which causes plants to carry out more photosynthesis.
Summer months have less cloud cover than usual, and this reduces plants' capacity for carrying out photosynthesis.
In summer months, people burn less fuel for heating, which means plants do not get enough carbon dioxide.
Summer months are often very dry, and plants have difficulty carrying out photosynthesis in such conditions.
During the summer months in Earth's Northern Hemisphere, carbon absorption of plants on land increases because sunlight is more abundant in summer months, which causes plants to carry out more photosynthesis.
What is Photosynthesis?Utilizing a process called photosynthesis, plants and other living things may transform light energy into chemical energy that can then be released through cellular respiration to power their activities.
Green plants and certain other organisms convert light energy into chemical energy through a process called photosynthesis. Light energy is gathered and utilized during photosynthesis in green plants to transform water, carbon dioxide, and minerals into oxygen and energy-rich organic molecules.
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Hello, can you help me please : synthesis of a dozen lines showing that the resources and constraints of polar routes make them more regional than international routes
Below are a dozen lines synthesizing how the resources and constraints of polar routes make them more regional than international routes:
Polar routes, such as those crossing the Arctic and Antarctic regions, are often limited by harsh weather conditions and a lack of infrastructure.These routes require specialized equipment and trained personnel, making them less accessible for international travel.The limited number of airports and navigation aids in polar regions also restrict the number of flights and destinations.The availability of fuel and emergency landing options is also limited on polar routes.The remoteness of polar regions also makes maintenance and resupply of aircraft more challenging.The high cost of operating in these regions also makes polar routes less attractive for international travel.The limited demand for travel to and from polar regions also makes it less economically viable for airlines to operate international routes.The lack of international agreements and regulations for polar routes also adds to the operational challenges and costs.The shorter daylight hours during certain seasons also restrict the number of flights that can operate on polar routes.The limited number of polar-capable aircraft also limits the capacity for international travel on these routes.The potential impact on the fragile polar ecosystems and the impact of human activity on these regions also limits the growth of international travel on polar routes.Overall, the resources and constraints of polar routes make them more suited for regional rather than international travel.What are the Polar routes about?The information about how the resources and constraints of polar routes make them more regional than international routes are explain thus:
Weather conditions in polar regions, such as extreme cold, high winds, and low visibility, make flying in these regions more challenging and dangerous. This requires specialized equipment and trained personnel, which makes it less accessible for international travel.
The limited number of airports and navigation aids in polar regions also restrict the number of flights and destinations that are possible. This makes it less feasible for airlines to operate regular international routes.
Lastly, The remoteness of polar regions also makes it difficult to provide the necessary support and maintenance for aircraft, which increases the operational cost and risks.
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What was the purpose of the 1938 Munich Agreement?
The purpose of the 1938 Munich Agreement was to appease Nazi Germany and to avoid war. It allowed Germany to annex portions of Czechoslovakia, while also attempting to guarantee the borders of other European countries.
The 1938 Munich Agreement: Appeasing Nazi Germany to Avoid WarThe 1938 Munich Agreement was a diplomatic agreement between:
GermanyBritainFranceItalyIt was an attempt to appease Nazi Germany and to avoid war. The agreement allowed Germany to annex the Sudetenland region of Czechoslovakia, while also attempting to guarantee the borders of other European countries. The agreement was seen by some as a way to prevent war, while others viewed it as a betrayal of Czechoslovakia, as they had no representation in the negotiations.
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Compare and contrast PERIGEE TIDES and SPRING TIDES.
The comparison and contrast between PERIGEE TIDES and SPRING TIDES are that Perigee Tides occur when the sea level drops as low as possible. This occurs when the moon is closest to Earth. Meanwhile, SPRING TIDE is the marked difference between high and low tide that occurs when the earth, moon, and sun are in a straight line.
Comparison Between Perigee Tide and Spring TidePerigee Tides occur at the position of the sun, the moon, and the earth forming a 90-degree angle.
Meanwhile, Spring Tides occur when the positions of the earth, moon, and sun are in a straight line. The surface of the earth that faces the moon will experience high tide, while the surface of the earth that is not facing the moon will experience low tide.
Contrast Between Perigee Tide and Spring TidePerigee Tides are the phenomenon of the lowest tides and highest tides. This phenomenon occurs on the 8th and 21st during the half-moon phase.
Spring Tides Full is the phenomenon of the highest high tide and lowest low tide. This phenomenon occurs during the new moon (new moon) and full moon. The full moon occurs on the 1st new moon and 14th full moon.
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Asia makes up _____ of all the earth. it is the largest of all the continents.
Asia is the largest of the world's continents, covering approximately 30 percent of the Earth's land area. It is also the world's most populous continent, with roughly 60 percent of the total population.
What is a continent?One of Earth's seven major landform divisions is the continent. The continents are Asia, Africa, North America, South America, Antarctica, Europe, and Australia, in order of largest to smallest.
Geographers often include all the islands connected to a continent when identifying it. For instance, Japan is a country that belongs to Asia. Normally, all of the Caribbean Sea islands and Greenland are regarded as being in North America.
The combined area of the continents is around 148 million square kilometers (57 million square miles). Most of Earth's land surface, although not all of it, is made up of continents. Islands that are not physically a part of continents make up a minuscule amount of the overall land area. Nearly three-quarters of Earth is covered by the water. The aggregate area of all the continents is less than half of what the ocean is. At least one ocean borders each continent. The longest chain of coasts is found on Asia, the world's biggest continent.
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Answer: 1/3 or 30%
Explanation:
What did Freud call dreams?
So, according to Freud, there are two different kinds of dreams: manifest dreams and latent dreams. According to him, the latent dream is the actual dream, and it is what dream interpretation seeks to make known.
What is dreaming?A dream is a collection of ideas, thoughts, and experiences which frequently occur suddenly and spontaneously in the mind during specific sleep stages. The average length of a dream is between five to twenty minutes, however the dreamer can perceive a significantly longer duration. An average person dreams for two hours each night. The nature and function of dreams have piqued curiosity in science, philosophy, & religion throughout recorded history. The first application of dream interpretation in psychotherapy dates back to the third millennium BCE with the Babylonians. Even earlier than that, the ancient Sumerians used it. Oneirology is the term used in science to describe the study of dreams.
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What are examples of biotic and abiotic factors in an ecosystem?
Abiotic factors, or the components of an ecosystem that are not living things, have an effect on their surroundings.
The terrestrial environment is made up of elements like temperature, light, and water. Salinity and ocean currents are two examples of abiotic elements in a marine ecosystem. Through the interaction of biotic and abiotic components, an ecosystem is created. All the non-living components of the ecosystem contain abiotic elements. They frequently combine physical and chemical components. Abiotic variables are elements of the ecosystem that are not living but yet affect the environment. Water, light, and temperature are a few examples. Salinity and ocean currents are two examples of abiotic elements in a marine ecosystem. The trees in an ecosystem are a representation of all the biotic elements in that ecosystem. Not mammals at all. Animals with backbones and skin are known as mammals. Biotic elements, or living entities that make up an ecosystem.
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What was the main reason for building the transcontinental railroad?
The primary reason for building the Transcontinental Railroad was to enable easier transportation of goods and people between the east and west coasts of the United States.
Before the railroad, transportation between the coasts was slow and expensive. By connecting the coasts with a railroad, goods and people could travel much faster and at a lower cost. This enabled the growth of business and industry, as well as the population of the western United States.
The Transcontinental Railroad was also important for the development of the United States' economy. The railroad opened up new markets for goods and services, allowing businesses to expand and prosper. It also enabled the transportation of resources from one coast to the other, which helped to fuel the industrial revolution. The railroad also helped to open up new areas for settlement, which increased the population of the western United States.
The Transcontinental Railroad also helped to bring the United States closer together. It connected the two coasts, brought the population of the United States closer together, and connected trade throughout the country. This helped to foster a sense of national unity and identity.
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When we combine latitude and longitude we are giving what at a place
Meridians of longitude and parallels of latitude create a framework or grid that allows precise positions to be established in relation to the prime meridian and the Equator: a location with the coordinates 40° N, 30° W.
Latitude and longitude provide us with what?The grid system we use to pinpoint precise or absolute positions on the surface of the Earth is made up of latitude and longitude. To pinpoint a precise location, utilize latitude and longitude. When locating landmarks, latitude and longitude are also useful. The coordinates at a geographic coordinate system are expressed in latitude and longitude. Use the name of the location, the city, state, or the address to do a search. You may also click on the spot on the map to obtain the lat/long coordinates.
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Why is it important to use the elements of art in your activity?
Answer: It provides importance, and it defines your work to others.
Explanation: Using elements of art enhances it. Would you rather have a plain flower, with no color, no value, and no texture. Or have The Starry Night painting, which shows color, movement, and rhythm. When your artwork has elements, people can notice the emotions that you may use in your art.
Henry’s economy is classified as a secondary sector economy. Which could be the most important occupation in Henry’s country?
Henry’s economy is classified as a secondary sector economy. The most important occupation in Henry’s country was food processing.
What do you mean by secondary sector economy?The secondary sector includes all of the operations that involve varying degrees of raw material processing (manufacturing, construction industries).
In the three-sector theory of macroeconomics, which describes the function of manufacturing, the secondary sector of the economy is one of the economic sectors. It includes sectors that engage in building or generate finished, useable goods.
More products made in factories at low prices started to be used by people. The secondary industry rapidly overtook the primary sector in terms of employment and overall production.
Therefore, Henry’s economy is classified as a secondary sector economy. The most important occupation in Henry’s country was food processing.
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What has the EPA done to reduce air pollution?
The EPA has done a lot in order to reduce air pollution and what they have done is explained below.
To support monitoring efforts, EPA scientists develop new and advanced methods for an accurate and precise measure of these pollutants in outdoor air. These methods are called Federal Reference Methods (FRMs) which are used by states and other monitoring organizations to assess implementation actions needed to attain the federal "Clean Air Act’s National Ambient Air Quality Standards".
FRMs are the “gold standard” of air pollution systems for monitoring and ensuring air quality data collected at different sites are in the same manner and are accurate. To foster innovation and advance new technologies, EPA also reviews, tests, and approves other methods, called Federal Equivalent Methods (FEMs), based on different sampling and analyzing technologies other than FRMs, but are required to provide the same decision-making quality when making NAAQS attainment determinations.
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Describe and compare the three types of scales used by scientists to measure and describe earthquakes.
the three types of scales used by scientists to measure and describe earthquakes are:
Richter scaleMercalli scaleMoment magnitude scaleRichter scale: Dr. Charles Richter, a seismologist at the California Institute of Technology, created the Richter scale in the 1930s. The amplitude of the greatest seismic wave observed during the earthquake is used to compute the earthquake's Richter magnitude.
Since the Richter scale is a base-10 logarithmic scale, there is no upper or lower limit to the size of an earthquake that can be measured by it. On the Richter scale, 1 represents the smallest earthquake and 10 represents the greatest.
The Richter scale is logarithmic, thus an earthquake with a magnitude of 5.0 will generate shaking 10 times more than one with a magnitude of 4.0.
Mercalli scale: By calculating the impacts of an earthquake on the Earth's surface, the Mercalli scale determines the magnitude of an earthquake.
The Mercalli scale ranks earthquakes on a scale of 1 to 12, with 1 meaning that nothing was felt and 12 denoting complete damage, based on human reactions, natural objects, and man-made buildings.
The Mercalli scale, developed in 1902 by Giuseppe Mercalli, isn't regarded as being as accurate as the Richter scale. This is due to the Mercalli scale's reliance on eyewitness reports, which prevents it from defining the quake's force according to strict and impartial standards as the Richter scale does.
Moment magnitude scale: The Richter scale was replaced in 1979 by the moment magnitude scale.
The moment of the earthquake, which is equal to the stiffness of the Earth times the typical amount of slip on the fault and the size of the region that slipped, serves as the basis for the moment magnitude scale, which compares the energy released by earthquakes.
The U.S. Geological Survey estimates the magnitudes of all contemporary big earthquakes using the moment magnitude scale because it is more precise than the Richter scale in measuring large earthquakes.
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Through time, the way people have obtained a sufficient food supply has changed. While variation across geographical areas is present, there are general global trends in how food is obtained or produced.
In 3–5 sentences, discuss the factors that drove these changes.
In 2–3 sentences, explain the differentiating features of the major historical phases in human food procurement or production.
In one sentence, identify some challenges that may drive future changes in agriculture.
During a time of tremendous population growth, the era of trade liberalisation not only improved economic outcomes but also decreased hunger and famine and improved food security.
What was sufficient food supply ?In fact, there were 170 million fewer undernourished individuals in the globe in 2017 than there were in 2001.
The secret to feeding a hungry world is increased agricultural production without increasing the quantity of land used. In most climes, crop harvests need to be raised from one each year.
Fertilizers and machines are the two key advancements that have made it possible for food production to keep up with a growing population.
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5) Population tends to be dense near -
A) rivers.
B) deserts.
C) poles.
D) mountains.
HELP I NEED THIS QUESTION URGENTLY
Answer:
Population tends to be dense near rivers.
The balance of energy in the solar interior means that
The balance of energy in the solar interior means that energy production rate in the core matches the rate of radiation escaping the Sun's surface.
The sun is essentially a gigantic fusion reaction, hence it has the ability to produce energy. The area between the sun's centre and around 20–25% of its radius is known as the core. Here, in the core, hydrogen atoms (H) are transformed into helium nuclei, which produces energy (He).
The intense temperature and pressure that present inside the core make this feasible. Within a radius of 24%, the sun produces 99% of its total energy. The energy that is transported from the solar core through the subsequent layers, finally reaching the solar photosphere, and departing into space as sunlight, heats the remainder of the sun.
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