True/False : database management catalog uses histograms to understand the output from selection operation

Answers

Answer 1

The given statement is false because the database management catalog is used by database administrators to manage the database schema, security, and other aspects of the database. It does not use histograms to understand the output from selection operations.

Histograms are used by the query optimizer to estimate the selectivity of predicates in the query and to choose an efficient execution plan. The optimizer uses histograms to understand the distribution of values in the columns that are involved in the query predicates.

This information helps the optimizer to estimate the number of rows that will be returned by the query and to choose the most efficient access method and join order. The database management catalog may contain information about the statistics and histograms for the tables and indexes in the database, but it does not use them directly to understand the output from selection operations.

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Related Questions

What is the total cost to conduct a market research survey will $500 base fee plus $3 per question and 1.25per person surveyed? The survey has 13 questions and will be sent to 300 people.

Answers

answer: The survey has 12 .

Explanation:

Suppose you bought a bond with an annual coupon rate of 4.4 percent one year ago for $850. The bond sells for $900 today.
a. Assuming a $1,000 face value, what was your total dollar return on this investment over the past year? Total dollar return $
b. What was your total nominal rate of return on this investment over the past year? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) Nominal rate of return %
c. If the inflation rate last year was 1.5 percent, what was your total real rate of return on this investment? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)

Answers

The amount received on an investment after deducting taxes and inflation is known as the real return.

What does real rate of return mean?

Real return is the amount received on an investment following the deduction of taxes and inflation. In comparison to nominal returns, which do not account for taxes and inflation, real returns are lower.

Real rate of return is the annual rate of return that is taken into account after inflation and taxes. A nominal rate of return, on the other hand, excludes taxes and inflation from calculation. A rate of return that accounts for taxes or inflation in its calculation is referred to as a real rate.

Total dollar return is $94.

The bond is held for one year, and the investor will receive one coupon

= 1000 × 4.4% = $44.

Capital gain = (900 - 850) = $50.

Total dollar return = 50 + 44 = $94.

b) Total rate of return = total dollar return / purchase price

= 94 / 850 = 11.06%.

c) Real rate of return = nominal rate of return - inflation rate

= 11.06% - 1.5% = 9.56%.

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In what ways were import substitution industrialization (ISI) and export oriented industrialization (EOI) similar

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An economic strategy known as import substitution industrialization is occasionally used by developing countries to build an independent economy.

What differentiates import substitution industrialization (ISI) from export-oriented growth (EOG)?

When a nation pursues economic development by opening itself up to foreign trade, this is known as an export-led growth strategy. Import substitution, when nations work to become self-sufficient by establishing their own industries, is the reverse of an export-led growth plan. Units that are focused on exporting their whole product line are known as export-oriented units. EOUs are permitted to work in manufacturing, services, software development, repair, remaking, reconditioning, and re-engineering, including the production of gold, silver, and platinum jewellery and other items.

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Wendy, who is single, worked her way through college earning an annual taxable income of $12,000 in 2022. Her first job after graduation will give her a taxable income of $35,000 per year. Using the tax table, what is her marginal tax bracket in 2022 while she is still in school and what will it be when she graduates?.

Answers

The US marginal tax bracket in 2022, while she is still in school is 12% and it will still be 12% when she graduates because the marginal rate tax slab is 12% for single filers with taxable income between $10,275 to $41,775.

What does the marginal tax rate mean to us?

The tax rate you pay on every extra dollar of income is known as the marginal tax rate. In the US, as income grows, so does the federal marginal tax rate for people. Your marginal tax rate will thus probably be lower than your tax bracket.

The progressive taxation technique seeks to tax people in accordance with their wages, with low-income earners paying less in taxes than high-income earners.

Taxpayers are often split into tax brackets or ranges under a marginal tax rate, which determines the rate applied to the tax filer's taxable income. The final dollar earned will be taxed at a greater rate than the first dollar earned as income rises. In other words, the first dollar made will be taxed at the lowest tax bracket's rate, the final dollar earned at the highest bracket's rate for that total income, and all money generated in between will be taxed at the range into which it falls.

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What type of consumer is a quaternary consumer?

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Animals that consume at the top of the food chain, following the primary consumer, are referred to as quaternary consumers. Animals lower on the food chain than themselves.

Why do quaternary consumers outnumber primary consumers by a significant margin?

They are often larger animals since they are at the the top of the food chain. Generally speaking, quaternary eaters are less prevalent in an environment than other animals because they are larger and require more food to survive. The population between levels decreases because energy is lost when one moves between levels. The level with the fewest organisms would be the spend nearly, while the level with the most creatures would be the producers. As energy levels decrease, so do the number of species that can be sustained by them. There are usually no more than four trophic levels because as levels rise, energy and biomass decline.

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What are the 3 parts that an informative essay contains?

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The three main parts (or sections) of an essay are the introduction, body, and conclusion. The introduction, body, and conclusion are the three main parts of an informative essay outline.

They can be used to define a term, compare and contrast two things, analyse data, or explain how to do something. That concludes the four types of informative writing. Literary conclusion, which is usually shorter; expository writing, which includes written cues that help readers scan information; argumentative or persuasive essay, which advocates a point of view; and procedural writing, which is a step-by-step guide. There are three kinds of informative speeches. They are the demonstration speech, the description speech, and the definition speech.

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Managing cultural diversity involves:

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Answer:

Trafficking in people from different cultures makes the work environment both rich but can also create inconvenience.

Dealing with this involves:

-Different forms of communication

-Habits that affect established schedules

-Different opinions about the company's goals

-Stereotypes and prejudices

-Different forms of incentives

I hope it help, regards :)

How are employee development practices strategic?
a. Employee development helps ensure an organization has a continual supply of talented and committed employees.
b. Employee development adds to research findings in the field of human resources.
c. Employee development ensures an organization minimizes training costs.
d. Employee development ensures that top-level management is trained so the organization has a competitive advantage.

Answers

The employee development practices strategic Employee development helps ensure an organization has a continual supply of talented and committed employees.

How strategic are staff development practices?

Employee development enables a firm to maintain a steady stream of talented and devoted workers. Employee development contributes to the body of knowledge in the human resources area. Employer development guarantees that training expenses are kept to a minimum.

What is the overarching objective of the process of training and development?

Increase the person's awareness level. Boost a person's proficiency in one or more of their areas of specialization. increase the drive for someone to do their work successfully.

What are a few justifications for honing human resource skills?

enhances interactions with employees.

brings the company's aims into perspective.

explains hiring procedures.

enhances workplace efficiency.

improves employee skill levels.

Occupational coaching.

classroom instruction

preparation for succession.

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How does this increase in population affect the natural resources that maintain humans?

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Increased resource extraction from the environment is one way that human population increase affects the Earth system. Fossil fuels (oil, gas, and coal), minerals, plants, water, and wildlife, particularly in the oceans, are some of these resources.

Why are people becoming more numerous?

Younger unmarried mothers, high fertility rates for particular ethnic groups, a lack of birth control options, and insufficient sexual education are all contributing factors to the predicted population expansion.

How do resources fare when the population grows?

Population increase speeds up the usage of resources, the production of trash, and environmental degradation.

                           Consumption patterns, specific technical advancements, and specific social organization and resource management paradigms all contribute to their aggravation.

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A store bought a hand-crafted toy chest at a cost of $921. 60 and marked it up 115%. Sebastian bought it and paid 2% sales tax. What was his total cost?.

Answers

The total cost that Sebastian has to pay is $1061.95.

To calculate the markup amount, we can use the formula:

markup = (selling price - cost) / cost.

We know that the markup is 115% and the cost is $921.60.

So we can set up the equation like this:

(selling price - 921.60) / 921.60 = 0.115

To find the selling price, we can solve for it:

selling price = 921.60 + (921.60 × 0.115)

selling price = $1,041.13

Now we have the selling price, we can find out the sales tax by multiplying the selling price with 2%

sales tax = 1,041.13 × 0.02

sales tax = $20.82

So the total cost for Sebastian is the selling price + sales tax

total cost = 1,041.13 + 20.82

total cost = $1,061.95

Therefore the total cost for Sebastian is $1,061.95

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How do you calculate residual value on a car lease?

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You can calculate the residual value on a car lease based on its manufacturer's suggested retail price (MSRP) and the percentage of residual value suggested by the car lease expert.

On a car lease, residual value refers to an estimate value a car have at the end of the leasing period. Residual value is important to determine the monthly payment you will be charged to. Residual value is the price you need to pay if you decide to buy the leased vehicle at the end of leasing period. The exact amount of residual value is negotiable between the leaser and the leasee.

Residual value can be calculated using 2 data: the manufacturer's suggested retail price (MSRP) and the percentage of residual value suggested by the car lease expert.

Commonly, a car with 36-months lease residual value will be around 50% of its MSRP. Hence, If the MSRP of a car is $100,000 then at the end of the leasing period, its residual value would be $50,000 (50% x $100,000).

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If the GDP per capita for Country Tis $45,020 and the population is 153 people, what is the real GDP for Country T

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GDP per capita is the entirety of net esteem included by all inhabitant makers within the economy furthermore any item charges (less subsidies) not included within the valuation of yield, separated by mid-year population.

How to calculate GDP?

GDP = private utilization + net private speculation + government speculation + government investing + (trades – imports).

How is per capita GDP influenced by GDP development and populace development?

If genuine GDP is expanding more quickly than the populace, at that point: per capita genuine GDP will be expanding. In case genuine GDP per capita is diminishing, genuine yield is: developing less quickly than the populace.

What are the 3 ways to calculate GDP?

GDP can be measured in three diverse ways: the esteem included approach, the salary approach (how much is earned as salary on assets utilized to create stuff), and the uses approach (how much is went through on stuff).

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A life insurance policy that contains a guaranteed interest rate with the chance to earn a rate that is higher than the guaranteed rate is called

Answers

A guaranteed interest rate is offered by universal life, but there is also a chance to earn an interest rate that is higher.

What kind of interest rate does a universal life insurance policy guarantee?

Currently, most policies provide a minimum interest rate for your insurance, which is a guaranteed interest rate between two and three percent (3%). (worst case scenario). In addition, policies include a current interest rate, which is sometimes a significantly greater crediting rate.

The insurer of universal life insurance ensures a minimum rate of return on your investment by offering a guaranteed minimum interest rate. The interest rate return on the accumulated cash value rises if the insurer makes wise investment decisions.

Therefore, A no-lapse guarantee is provided by many universal life insurance policies.

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How does tracking your expenses help you fine tune your goals how can you plan for unexpected expenses?

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Tracking expenses can help fine-tune your financial goals by understanding, budgeting and monitoring

A person can monitor where money is going and see any areas where they could be overspending by keeping track of all their expenses. This can assist in establishing more precise and achievable financial objectives. A person may make a budget that supports her financial objectives once they are aware of where the money is going. They can use this to ensure that they are saving enough money overall and are not spending too much in any one area.

Further, one can keep an eye on progress towards the financial objectives and make any modifications by tracking expenses on a regular basis. A person can set up an emergency fund that they can utilise for unforeseen costs to prepare for them. To accomplish this, put aside a little money each month and keep it in a different account. To be prepared for unforeseen costs, one should also include a few in their budget.

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Banks typically come under financial stress because of:

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Banks are usually under financial pressure for the following reasons: a widespread decline in their property values.

What is a bank?

A bank is a financial institution that is authorized to hold and lend money. We can offer checking accounts, savings accounts, credit cards, mortgages, auto loans, personal loans, small business loans, and more.

Banks may also provide services such as checking, money orders, wire transfers, safe deposit boxes, currency exchange, investment, or wealth management. Banks can choose the services they offer and the states in which they operate.

Simply put, a bank is a company. It uses the money deposited by customers in checking and savings accounts to make loans to individuals and businesses. Banks typically take interest on loans and give them back to customers as interest on their savings accounts.

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Which of the following lists the hierarchy of plant taxonomy in the correct order from most general to most specific

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The correct hierarchy of plant taxonomy is  the correct answer is 'Kingdom, phylum, class, order, family, genus, species.

What is plant taxonomy?

The science of finding, identifying, describing, categorising, and naming plants is known as plant taxonomy. One of the primary branches of taxonomy is it (the science that finds, describes, classifies, and names living things). Plant systematics and taxonomy are closely related, and there is no clear distinction between the two. Kingdom, phylum or division, class, order, family, genus, and species are the groups that make up the categorization system, listed from largest to smallest. Plants that share similar structural (phenotypic) characteristics are typically grouped together in plant taxonomy, which is a hierarchical system. The terms "taxis" (which means arrangement) and "nomos," which means laws, are the roots of the word "taxonomy." Plant taxonomy is the study of how to categorise different types of plants using predetermined standards.

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An estate is either:

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Either a freehold estate or a leasehold estate is considered an estate.

What is an estate?

The entirety of a person's net worth, including all real estate, personal property, investments, cash, and other assets that the person owns or controls, makes up their estate.

A leasehold estate or a freehold estate is referred to as an estate.

A life estate is a freehold estate that is only valid for the tenure of a specific person.

Real estate is a term that describes the actual ground as well as the buildings and resources that are affixed to it.

The real property extends the concept of what is meant by "property" to encompass a collection of ownership and usage rights in addition to the tangible elements of real land.

Therefore, either a freehold estate or a leasehold estate is considered an estate.

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What are the three types of capital investment?

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The three types of capital investments are -

1. Physical Capital Investments
2. Human Capital Investments
3. Finance Capital Investments

Capital investment refers to the use of money or other resources to acquire or develop long-term assets such as real estate, equipment, or infrastructure. Capital investments are intended to generate a return over an extended period, typically several years or more.

There are three main types of capital investment:

1. Physical Capital Investment: This type of investment involves the acquisition of tangible assets such as machinery, equipment, and real estate. These assets are intended to be used in the production of goods and services, and they can be used to increase the efficiency and productivity of a business.

2. Human Capital Investment: This type of investment involves the acquisition of skills and knowledge by individuals. This can include education and training, both formal and informal, to improve an individual's productivity and earning potential.

3. Financial Capital Investment: This type of investment involves the acquisition of financial assets such as stocks, bonds, and real estate investment trusts (REITs). These assets are intended to generate a return through appreciation, dividends, or interest payments.

It's important to note that capital investments are considered to be long-term investments and are intended to generate a return over an extended period, and also the type of capital investments will depend on the nature and the goals of the business.

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Activities causing overhead include all of the following:
batch-level
facility-level
unit-level

Answers

The ABC method consists of four steps: identifying the activities, assessing their size and base for allocation, calculating the predefined rate, and assigning overhead expenses.

What types of costs are depending on activity?

Examples include the amount of space required per product, which is used to allocate both the factory's rent and the company's maintenance costs. Another example is the number of purchase orders (i.e., PO) used to assign the costs.

The specified overhead rate for each activity (decided in step 4) is multiplied by the degree of the cost driver activity employed by the product to assign overhead expenses to specific products.

Therefore, This procedure is frequently referred to as applied overhead.

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Bank A has high solvency risk and low illiquidity risk. Bank B has no solvency risk and high illiquidity risk. Bank C has

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Illiquid assets frequently have greater volatility, larger bid-ask spreads, and higher risk for investors as a result.

What is risk of illiquidity?

Due to a lack of eager and ready buyers or speculators to buy the asset, illiquid assets may be difficult to sell fast. In contrast, actively traded securities will typically be more liquid. Illiquid assets typically have wider bid-ask spreads, greater volatility, and higher risk for investors as a result.

A bank's earnings and capital are at danger from liquidity, or the inability to timely meet commitments when they become due without suffering unacceptable losses. In order to meet prospective demands from both lenders and borrowers, bank management must make sure that there are enough funds available at a fair price.

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Who is the owner of the property and has the right of possession?

Answers

The owner, the right of possession belongs to the property's owner, who may delegate it in whole or in part to another person, who may then delegate it yet again to a third party.

These include the ability to transfer ownership, partition ownership, or bar encroachment by third parties on ownership, including possession. Possession refers to having physical control over something that may or may not be yours at the time.

An owner's right to exclude others is a component of ownership. Ownership grants the right to intervolves alienate a thing or piece of property or to levy security. Several laws, particularly family laws that provide the absolute right over such property, include restrictions on this power. A person who owns property has the authority to leave it, among other things. An owner has the legal right to hold what he owns, even though he may not always be in physical possession of it. Normally, he was entitled to utilise and benefit from the property.

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Should governments allow professional lobbyists to influence government legislation?

Answers

Governments should only allow professional lobbyists to influence government legislation when doing so is in the public's best interests.

Professional lobbyists are groups of people, such as corporations or trade associations, with an interest in the passage of certain legislation. They attempt to influence government legislation by providing the government with information and research to support their interests.

Lobbyists also coordinate meetings between their clients and government representatives and provide contributions to political campaigns.

Allowing professional lobbyists to influence government legislation can be beneficial, as it can provide government representatives with valuable information and research to inform their decision-making.

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How is a decision-making grid an example of cost-benefit analysis?

Answers

Answer:

A decision-making grid is an example of cost-benefit analysis because it helps to weigh the costs and benefits of a particular decision. The grid outlines the various options available and provides a visual representation of the pros and cons of each option. The cost-benefit analysis helps to determine which option is the most beneficial and cost-effective.

Explanation:

In which type of market would you find it the most difficult to buy goods from another country?pure market economyclosed economytraditional economymixed market economy

Answers

In a closed financial system market it would be very challenging to buy items from any other country. Explanation: In a closed economy the country has no approach of transacting items or offerings with any other us of a or economy.

What is a closed and open economy?

Open and Closed Economies •A closed economy is one that does now not have interaction with different economies in the world. • There are no exports, no imports, and no capital flows. • An open financial system is one that interacts freely with other economies round the world.

According to The Economist, a closed economic system is: “An economy that does no longer take section in international trade; the opposite of an open economy. At the turn of the century about the only remarkable instance left of a closed economy is North Korea.

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A hardware distributor has regional warehouses at the locations shown below. The company wants to locate a new central distribution center to serve this warehouse network.
Location (x, y)
1 2, 3
2 3, 7
3 5, 5
4 7, 3
5 8, 7
If weekly shipments to each warehouse will be approximately equal, what is the optimal location for the distribution center?
O 5, 5
O 5, 4
O 4, 5
O 6, 5
O 5, 6

Answers

(5,5) is the optimal location for the distribution center.

What is an optimal location?

If the greatest transit time at all between the two points in a given subset is minimized, placement for a walkway is considered to be optimum with regard to that set. In the scenario when the endpoints are on a line, we provide a straightforward linear-time technique for locating the ideal placement.

What is a hardware distributor?

Distributors of tools and hardware are businesses that sell their products in retail establishments and wholesale markets. They pay wholesale prices for these goods from international producers before selling them to their local clients.

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The distribution center should be placed at (5,5).

What defines the ideal location?

Placement of a walkway is seen to be optimal with respect to a particular subset if the longest travel time between the two sites is reduced. We offer a clear linear-time method for determining the best location in the case where the ends are on a line.

A distributor of hardware is what?

Businesses that offer their goods in retail stores and wholesale marketplaces are known as tool and hardware distributors. Before selling these products to their local customers, they purchase them at wholesale costs from foreign manufacturers.

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What does it mean to say that a checking account is balanced?

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A balanced checking account means that the amount of money in the account corresponds to the account entry. This includes deposits, withdrawals and any other transactions that have been made.

In order for a checking account to be balanced, the account holder must regularly review their account to ensure that all transactions have been accurately recorded and that the account balance is correct. If an error occurs, they must report it to the bank to ensure their account balances. Maintaining a balanced checking account is important because it allows the account holder to track their spending, avoid overdraft fees, and stay on top of their finances.

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How do you determine serving size?

Answers

Serving size is the amount of food or beverage that is typically consumed at one time. It can be determined by reference to a standard unit of measurement, such as cups, ounces, or pieces, or by weight.

The serving size listed on a nutrition label is based on the Reference Amounts Customarily Consumed (RACC) established by the Food and Drug Administration (FDA) and is intended to help consumers compare the nutrient content of similar products.

However, the serving size that is appropriate for an individual will depend on their age, sex, weight, and level of physical activity. The FDA sets serving size standards for certain foods and beverages to provide a consistent basis for nutrient comparisons.

These standards are based on the amount of food and drink that people typically consume, as determined by national food consumption surveys. Serving sizes are listed in both common household measures (such as cups or ounces) and in metric measurements (such as grams) on the nutrition label.

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At richardson manufacturing company, there are two factors that determine the cost of health care. If an employee makes less than $55,000 per year, he pays $60 per month for individual coverage and $115 per month for family coverage. If an employee makes at least $55,000 per year, individual coverage is $90 per month and family coverage is $165 per month. A. Arielle is an office assistant at richardson. She makes $47,700 per year. She has individual health care. Her yearly contribution is 5% of the total cost of the health care policy. How much does her employer contribute? b. Catherine is a department manager at richardson. Her annual salary is $68,300. She has family health care. Her employer contributes $935 per month towards her total coverage cost. What percent does catherine contribute toward the total coverage?.

Answers

Catherine would contribute 15% towards the total coverage

Given that ;

Catherine earns $68,300 every month, has family health care and her employer contributes $935 every year towards total coverage Cost.

Then,

Catherine's rate for health care is $165 since her monthly payment is higher than $55,000

Total contribution = Health care rate + coverage cost contributed by her employer

Total contribution = $165 + $935

Total contribution = $1,100

We can calculate the percentage in which Catherine contributes towards total coverage as;

= Health care rate / Total contribution * 100

= 165 / 1,100 × 100

= 0.15 × 100

= 15%

It, therefore, means that Catherine contributes 15% towards the total coverage

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Answer:

a. $13,680.00

b. 15%

got it correct.

Explanation:

Do quaternary consumers depend on producers?

Answers

The primary consumer is eaten by the quaternary consumer, who in turn eats secondary consumers. Primary consumers consume producers (which are primarily plants) and other organic materials.

Who are the quaternary consumers?

They prey on tertiary consumers, which they then ingest. Quaternary consumers are typically the apex predators in their ecosystems. As tertiary and secondary consumers, for example, these animals primarily feed on or devour species that are lower on the food chain than they are. Quaternary consumers serve as the ecosystem's apex predator because there are no other predators in their environment. They have the power to control the population of the trophic levels below them since they are at the top of the food chain. The tertiary consumers may eat both primary and secondary consumers and may be wholly carnivorous or even omnivorous.

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Package a contains 3 birthday cards and 2 thank-you notes and costs $9.60. package b contains 8 birthday cards and 6 thank-you notes and costs $26.60. if x represents the cost of a birthday card and y represents the cost of a thank-you note, how much does each birthday card cost?

Answers

Each birthday card costs $2.2 ⇒ answer c.  Cost is equal to selling price plus profit Selling price plus loss is the cost price.

How to calculate cost?Cost is equal to selling price plus profit ( when selling price and profit is given ) Selling price plus loss is the cost price ( when selling price and loss is given ) The cost function's generic formula is C(x)=F+V. (x) C(x) = F + V(x), where x is the quantity produced, V(x) is the total variable cost, and F(x) is the total fixed cost. The total cost formula is used to total up the variable and constant expenses associated with providing commodities. Total cost = (Average Fixed Cost x Average Variable Cost) x Units Produced is the formula.

* Lets explain how to solve the problem

- Package A contains 3 birthday cards and 2 thank-you notes

- It costs $9.60

- Package B contains 8 birthday cards and 6 thank-you notes

- It costs $26.60

- x represents the cost of birthday card and y represents the cost of

thank-you note

* Lets change these information to two equations

∵ x represents the cost of each birthday cards

∵ x indicates how much each thank-you note costs.

∵ Bag A contains 3 birthday cards and 2 thank-you notes

∵ Bag A costs $9.60

∴ 3x + 2y = 9.60 ⇒ (1)

∵ Bag B contains 8 birthday cards and 6 thank-you notes

∵ Bag B costs $26.60

∴ 8x + 6y = 26.60 ⇒ (2)

* Lets solve this system of equations to find x and y

- Multiply equation (1) by -3 to eliminate y

∵ -3(3x) + -3(2y) = -3(9.60)

∴ -9x - 6y = -28.8 ⇒ (3)

- Add equations (2) and (3)

∴ -x = -2.2

- Multiply both sides by -1

∴ x = 2.2

∵ x represents the cost of each birthday cards

∴ The cost of each birthday card is $2.2

* Each birthday card costs $2.2

The complete question is:

Package A contains 3 birthday cards and 2 thank-you notes and costs $9.60. Package B contains 8 birthday cards and 6 thank-you notes and costs $26.60. If x represents the cost of a birthday card and y represents the cost of a thank-you note, how much does each birthday card cost?{3x+2y=9.6 8x+6y=29.6 a $1.33 b $1.50 c $2.20 d $3.10

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