The 1st row has 15 chairs.
The 2nd row has 15 + 3 = 18 chairs.
The 3rd row has 18 + 3 = 15 + 2•3 = 21 chairs.
The 4th row has 21 + 3 = 15 + 3•3 = 24 chairs.
The pattern continues, so that the n-th row has 15 + (n - 1)•3 = 3n + 12 chairs.
If there are 15 rows, then the total number of chairs is
where we use the formulas
Because metalloids are semiconductors. The fact that metalloids are brittle/shiny are only physical characteristics and wouldn’t be the reason why a metalloid would be helpful for designing a new computer processor. Amphoteric means that it’s able to react both as a base and as an acid, but since the computer processor has to have something to do with electricity, the second option would be the answer. Semiconductors are also helpful for electrical circuits, so that’s also why is would be best for the new computer processor.
The most sensible answer is to:
A) Report his findings.
As a scientist it is his job to conduct experiments based on hypothesis or theories and from this experiments, give a detailed description, explanation, and conclusion about the experiment. This is the reason scientists and doctors write articles about their research, to make the public aware of such discoveries so that future researchers don't have to spend time valuable time and further studies can be based on such experimental report.
D) Would also be correct 'If' the scientist didn't find the expected answer to his hypothesis. This would cause the scientist to perform further experiments to find a reasonable justification and give a conclusion about it. If by the end of his studies, the research concludes that his hypothesis is incorrect, he must change his hypothesis based on scientific truth.
Both B) and C) are the least likely answers because:
B) is an immature action to take, showing the scientists lack of control. Throwing away experiment notes is not the wisest move to take as these notes not only provide valuable information about the experiment but can actually prove to be important data, that if analysed well it could show the scientist his mistake/error, a new unobseved pattern or give him a new hypothesis or idea. Thus proving to be very valuable.
C) As a scientist, it is his right to be a very genuine about his work as he is given a credibility by science. Lie is one of the greatest sin to a scientist as it causes his credibility to collapse and even lose his title as a scientist.
The wireless device a manager most likely have before being offered the upgrade by her supervisor is a PDA. The wireless device the supervisor most likely offering to the manager as an upgrade would be a smartphone. Laptop and computer would prove cumbersome if the manager needs to have her hands free to move about the sales floor.
This is because a smartphone has various software installed in it that makes the work assigned more easier compared to other gadgets. A laptop and computer can perform the same works as well but the feasibility related to portability will be a reason for the choice on smartphones over PDA, laptops and computer in an organization.
To know more about smartphone here
brainly.com/question/14774245
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Answer: At the bottom if their is answer chocies then D
Explanation: Hope this helps ;)
