08.07.2021

this image shows a quadrilateral inscribed in a circle select all true statement

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Mathematics
Step-by-step answer
P Answered by PhD

m\angle ECB+m\angle EFB=180

m\angle CDB\cong m\angle EDF

m\angle CDB+m\angle DCB+m\angle CBD=180 \degree

Step-by-step explanation:

From the diagram, quadrilateral BCEF is a cyclic quadrilateral.

Opposite angles if a cyclic quadrilateral sum up to 180°

m\angle ECB+m\angle EFB=180

The diagonals intersect at D to form two pairs of vertical angles, and vertical angles are congruent.

m\angle CDB\cong m\angle EDF

Also sum of angles in triangle CBD is 180°.

m\angle CDB+m\angle DCB+m\angle CBD=180 \degree

Mathematics
Step-by-step answer
P Answered by Master

\angle A + \angle C = \angle B + \angle D

Step-by-step explanation:

See attachment for cyclic quadrilateral

From the attachment:

A opposites C and B opposites D

In a cyclic quadrilateral:

Opposite angles adds up to 180

So:

\angle A + \angle C = 180

\angle B + \angle D = 180

180=180

So:

\angle A + \angle C = \angle B + \angle D


Select the correct answer. Quadrilateral ABCD is inscribed in circle P as shown. Which statement is
Mathematics
Step-by-step answer
P Answered by PhD

m\angle ECB+m\angle EFB=180

m\angle CDB\cong m\angle EDF

m\angle CDB+m\angle DCB+m\angle CBD=180 \degree

Step-by-step explanation:

From the diagram, quadrilateral BCEF is a cyclic quadrilateral.

Opposite angles if a cyclic quadrilateral sum up to 180°

m\angle ECB+m\angle EFB=180

The diagonals intersect at D to form two pairs of vertical angles, and vertical angles are congruent.

m\angle CDB\cong m\angle EDF

Also sum of angles in triangle CBD is 180°.

m\angle CDB+m\angle DCB+m\angle CBD=180 \degree

Geography
Step-by-step answer
P Answered by Master
Answer and explanation: This is a Robinson map of the world. The Robinson projection was created in 1963 by the geographer Arthur Robinson. The projection seeks to balance different types of distortion. The projection isn't perfect, but it is considered more visually appealing than others. It balances small distortions of area, shape, distance, and direction.
Answer and explanation: This is a Robinson map of the world. The Robinson projection was created in
Geography
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P Answered by PhD
Answer:
Their goal was not only to separate South Africa's white minority from its non-white majority, but also to separate non-whites from each other, and to divide black South Africans along tribal lines in order to decrease their political power.
Strategists in the National Party invented apartheid as a means to cement their control over the economic and social system. Initially, aim of the apartheid was to maintain white domination while extending racial separation. ... With the enactment of apartheid laws in 1948, racial discrimination was institutionalized.
Geography
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P Answered by PhD

Thus question lacks a picture or option, but nevertheless:

Answer:

There are 3 types of friction:1) Static friction - when you apply force and the object does not move.2) Sliding friction - when the surface if the object moves on other.3) Rolling friction - when any wheel or ball moves on any surface rolling friction is applied. it is very less than sliding friction.

Geography
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P Answered by PhD

If it's an open question, then 

Answer:

When it comes to areas that humanity does not affect in terms of vegetation, colder areas such the Tundra come to mind.

The Tundra is known for:

- Very cold climates

- Low number of animals and plants

- Limited sunlight

As a result of the cold weather and the limited number of plants and animals in the tundra, humans generally avoid this environment which ensures that there is little effect of humans on natural vegetation patterns.

In conclusion, tundra areas do not see a lot of human influence on vegetation.

Geography
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P Answered by PhD

Options:

A. They standardize prices for commodities in global markets 

B. They streamline the process of organizational decision making. 

C. They force organizations to reach a consensus before making decisions 

D. They provide a forum for individuals to voice discontent with organizations.​

Answer:

B. They streamline the process of organizational decision making. 

Explanation:

A geographic information system (GIS) is a type of database containing geographic data (that is, descriptions of phenomena for which location is relevant), combined with software tools for managing, analyzing, and visualizing those data. In a broader sense, one may consider such a system to also include human users and support staff, procedures and workflows, body of knowledge of relevant concepts and methods, and institutional organizations.

Options:A. They standardize prices for commodities in global markets B. They streamline the pro[youtube=iCHaJR831t4]
Geography
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P Answered by PhD

Answer:

The article states that the Incas developed knowledge of farming in the Andes region over the course of 11,000 years. This information shows that they refined their farming practices over time. The use of gravel, terraces, and canals allowed the Incas to adapt farming to the difficult terrain.

Geography
Step-by-step answer
P Answered by PhD

Answer:

More refugees fled Southeast Asia when Vietnam invaded Cambodia in 1979 to overthrow the murderous regime of Pol Pot. Thousands of refugees from that unhappy land began to escape over the border into neighboring Thailand.

Also the majority of Vietnamese came to Victoria after the Communist government took over their homeland at the end of the Vietnam War. Those already in Australia were offered permanent residence, and refugees began to be admitted through resettlement camps based in South East Asia.
 

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