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Using a number line, what is the approximate value sqrt(19)?

A. 4.38
B. 4.25
C. 4.5
D. 4.13

1 answer

To find the approximate value of √(19), we can use a number line to estimate the square root.

On a number line, we know that 4 squared (4²) is 16, and 5 squared (5²) is 25.

Since 19 is closer to 16 than 25, we know that √(19) would be closer to 4 than 5.

Therefore, the approximate value of √(19) would be 4.38 (Option A).
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