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Prove that an isometry is surjective. The definition of isometry is that: An isometry of n-dimensional space Rn is a distance-preserving map f from Rn to itself, a map such that for all u and v in Rn,
answered
Dec 22, 2024
Mathematics
college
1
answer
203k
views
In a boiler plant where there are two 250 horsepower boilers (using heating surface) connected to the same common header, what engineers license would be required to be in charge of the plant? a) chief
answered
Dec 22, 2024
Engineering
college
1
answer
48.5k
views
What instrument converts electrical energy to sound or image signals in a radio or television?
asked
Dec 14, 2024
Physics
high-school
1
answer
47.3k
views
Please help me... I don't get it
asked
Nov 10, 2024
Biology
high-school
1
answer
47.6k
views
What parts of a membrane protein are on what side? What happens if a membrane flips?
answered
Sep 24, 2024
Biology
high-school
1
answer
27.9k
views
An imperative refers to what one must or must not do in a certain culture. For example, in Germany, one must not address someone by their first name upon meeting them. 1) True 2) False
asked
Sep 19, 2024
Social Studies
high-school
1
answer
29.2k
views
The classic conservative opposes government intervention in _____
asked
Aug 24, 2024
Social Studies
high-school
1
answer
97.3k
views
Read the passage below and determine the part of speech of the underlined word. he was a huge man in a bright red robe (bright as holly berries) with a hood that had fur inside it and a great white beard
asked
Jun 21, 2024
English
high-school
1
answer
73.4k
views
Signs and symptoms of a ruptured spleen in a child?
answered
Jun 2, 2024
Medicine
college
1
answer
116k
views
The highest recorded body temperature that a person has survived is 46.5°C. Calculate that temperature in degrees Fahrenheit. Express the temperature in degrees Fahrenheit as an integer.
answered
May 10, 2024
Physics
high-school
1
answer
232k
views
A child has a box full of colored building blocks. If he chooses one block without looking, the probability of choosing a green block is 7/9. What are the odds against choosing a green block?
answered
Mar 8, 2024
Mathematics
high-school
1
answer
35.3k
views
What action should a driver take when needing to slow down? a) Swiftly apply brakes b) Use the brakes forcefully c) Slow down gradually and use brakes lightly d) Depend on engine braking only
answered
Feb 20, 2024
Social Studies
high-school
1
answer
217k
views
we apply k-means clustering to the following data, assuming k=2 and points a and c are randomly selected as the inital means of the two clusters. the choice of distance is euclidean distance. A(1,1) B(1,
asked
Feb 6, 2024
Mathematics
college
1
answer
166k
views
What happens when a text includes two central ideas?
asked
Feb 6, 2024
English
college
1
answer
9.5k
views
Which system protects us from radiation and the vacuum of space? A) geosphere B) hydrosphere C) atmosphere D) biosphere
answered
Jan 20, 2024
Physics
high-school
1
answer
211k
views
The Louisiana Purchase of 1803 allowed the U.S. to acquire a vast amount of territory from France, indeed, nearly the entire Great Plains region of the present-day was gained through the purchase. What
asked
Jan 17, 2024
History
high-school
2
answers
126k
views
I need help on this crossword
answered
Nov 27, 2023
English
college
2
answers
146k
views
Why do I think Thomas Paine chose to remain anonymous when common sense was first published
asked
Oct 28, 2023
History
college
2
answers
52.0k
views
What is the BEST revision of this sentence? Wetlands used to be thought of as horrible places and now people realize wetlands are homes for animals like birds and wetlands are important for the environment.
asked
Oct 19, 2023
English
high-school
1
answer
161k
views
A student’s desk is 80cm wide at the front and 60cm wide at the back. The desk is 50cm deep. Find the area of the desk.
answered
Oct 3, 2023
Mathematics
college
1
answer
108k
views
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