For the following right triangle, find the side length x. Round your answer to the nearest hundredth.
1 answer:
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Answer:
Step-by-step explanation:
Given that each question after the first is worth 4 points more than the preceding question.
Total questions = 10
Let a be the marks for the first question.
Then the marks for 10 questions in order are a, a+4, a+8,....a+36
This is an arithmetic sequence with common difference d =4
Sum of 10 terms =
This sum is given as 360
Equating we get
Hence III question will have points as 18+2(4) = 26.