To estimate: Square root
Answer to Problem 67SR
Estimated value of
Explanation of Solution
Given information: A square root number -√125
Concept used: It is to find two perfect square numbers in between those, the number 125 lies and square root of its closest that perfect square number becomes the estimated value of square root of 54.
Calculation: As 125 lies between two perfect square numbers 121 and 144, so that 121 is square of 11 and 144 is square of 12, and also 125 is closest to 121, thus, value of
-√121=-11 will also be the estimated value of
Or,
Conclusion: By above concept, it is cleared that as 125 is more closer to perfect square 121, its square root value
Chapter 10 Solutions
Pre-Algebra, Student Edition
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