Answer:
Explanation:
The answer is C.
He may have made a contribution to D. There are over 360 different proofs for the Pythagorean theorem but that would not be his major contribution.
B may also be true, but if it is, he is not noted for it.
A not the Chinese system.
His main contribution was in the solution of equations like
y = 2x^2 + 20x + 12 = 2(x^2 + 10x + 25) - 12 = 2(x + 5) - 62 (completing the square) which we teach in the lower grades now, but when you learn something about the number system used, you realize that any contribution is remarkable.
Answer:
Levi
Christopher
Roberto
Step-by-step explanation:
I like to work problems involving repetitive calculations using a spreadsheet. The sort function can easily put the results in the appropriate order.
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Here, we need to compute minutes and kilometers remaining for each cyclist, and then divide the former by the latter to find the required timing.
Minutes remaining will be the difference between the qualifying time and the time used so far.
Km remaining will be the difference between the race length and the distance traveled so far.
Required minutes per km will be the ratio of minutes remaining to km remaining.
Levi has the least allowed minutes per km for his remaining distance. Roberto has the most.
Sweden is further north than any of the other countries listed, so probably go with Sweden.
