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3 years ago

If I say "Everything I tell you is a lie," am I telling you the truth or a lie?

1 answer:

8 0

The answer would be a lie because even if this statement was true, someone would be lying on another lie.
So the answer would be B.

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Which of the following characteristics of populations are associated with highly developed countries?

Oksana_A [137]

It’s a higher fertility rate high rate of industrialization and longer life expectancy

7 0

3 years ago

Which of the following is the same as (V3+V2)2 ?

Drupady [299]

Solution. To check whether the vectors are linearly independent, we must answer the following question: if a linear combination of the vectors is the zero vector, is it necessarily true that all the coefficients are zeros?
Suppose that
x 1 ⃗v 1 + x 2 ⃗v 2 + x 3 ( ⃗v 1 + ⃗v 2 + ⃗v 3 ) = ⃗0
(a linear combination of the vectors is the zero vector). Is it necessarily true that x1 =x2 =x3 =0?
We have
x1⃗v1 + x2⃗v2 + x3(⃗v1 + ⃗v2 + ⃗v3) = x1⃗v1 + x2⃗v2 + x3⃗v1 + x3⃗v2 + x3⃗v3
=(x1 + x3)⃗v1 + (x2 + x3)⃗v2 + x3⃗v3 = ⃗0.
Since ⃗v1, ⃗v2, and ⃗v3 are linearly independent, we must have the coeffi-
cients of the linear combination equal to 0, that is, we must have
x1 + x3 = 0 x2 + x3 = 0 ,
x3 = 0
from which it follows that we must have x1 = x2 = x3 = 0. Hence the
vectors ⃗v1, ⃗v2, and ⃗v1 + ⃗v2 + ⃗v3 are linearly independent.
Answer. The vectors ⃗v1, ⃗v2, and ⃗v1 + ⃗v2 + ⃗v3 are linearly independent.

4 0

3 years ago

Which statement is correct regarding the structure of the earth?

balandron [24]

D - the earth is dynamic and constantly changing

8 0

3 years ago

Read 2 more answers

In comparing the advantages and disadvantages of nuclear energy with fossil fuels based electricity generation plants, do you th

Mashcka [7]

Answer:

Yes

Explanation:

Considering the following conditions;

1. Efficiency and Reliability

2. Availability of Resources

3. Emissions

4. Generating Electricity

Weighing nuclear energy and fossil fuels base on the above factors, nuclear energy represents a preferable option

1. Resources Availability

Uranium which is one of the most readily available source of energy is the major energy of nuclear energy and it's renewable and can be reprocessed.

While Fossil Fuels are non-renewable.

2. Emissions:

When electricity is being generated, nuclear energy is much more cleaner than Fossil energy.

3. Efficiency and Reliability:

As mentioned above, uranium powers the nuclear energy. Uranium atom can be splitted to form a nuclear energy, leading to a chain reaction called nuclear fission.

Organic reminants of plants and animals led to the formation of fossil fuels.

4. Generating Electricity

Both nuclear and fossil fuel power plants produce electricity the same way but the resources of fossil fuels is limited.

8 0

3 years ago

What are role of gov't in a mixed economy

IRISSAK [1]

Answer:

to moderate what happens in the economy, possibly keep the citizens safe by making it illegal to buy or sell certain things, and watch over the economy, in case of an economic downfall.

7 0

3 years ago

Read 2 more answers