Option A. 5/8 is the correct answer.
Step-by-step explanation:
Square root by factorization will be used to solve this question.
Given

The square root can be applied to numerator and denominator separately

Factorization

Hence,
Option A. 5/8 is the correct answer.
Keywords: Square roots, factorization
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What are we supposed answer towards this question?
9.4-0.1 = 9.3
The range is highest minus lowest
This is the concept of transformation, ΔHJK=ΔLMN, from the diagram:
∠H=∠L
∠K=∠N
∠M=∠J
In order to map ΔHJK to ΔLMN, we need to translate K to N and rotate about K until HK lies on the same line containing LN.