**Which of the following is the best approximation of 6 times the positive square root of 42?**

60.3

44.7

30.0

38.9

*Correct Answer : D*

In this case, we use a calculator to estimate the positive square root of 42.** **

Then, multiplying the square root above with 6 becomes

Then, the approximate value of 6 time the positive square root of 42 is 38.9.

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