Using a number line, what is the approximate value of 19−−√?(1 point)
Responses
4.25
4.38
4.13
4.5
To find the approximate value of 19−−√ on a number line, we can start by locating 19 and then estimate the square root value.
19 is close to 20 on the number line. The square root of 20 is approximately 4.47.
Since we are looking for the square root of 19, which is slightly less than 20, we can approximate the value to be slightly less than 4.47.
Therefore, the approximate value of 19−−√ is 4.38.
So, the correct answer is: 4.38
Using a number line, what whole number and rational number to the nearest half is 105−−−√ between?
To find the whole number and rational number to the nearest half that is between 105−−−√ using a number line, we can start by finding the whole number square root of 105.
The square root of 105 is approximately 10.25.
To find the whole number to the nearest half that is between 10 and 11, we can take the average of 10 and 11, which is 10.5.
So, the whole number to the nearest half that is between the square root of 105 is 10.5.
To find the rational number to the nearest half that is between 105−−−√, we need to estimate the decimal value of the square root.
Since the square root of 105 is slightly larger than 10, the decimal value will be slightly larger than 10.
Estimating the decimal value to be around 10.3, we can find the rational number to the nearest half that is between 105−−−√.
10.3 is between 10 and 10.5.
To find the rational number to the nearest half, we can take the average of 10 and 10.5, which is 10.25.
So, the rational number to the nearest half that is between 105−−−√ is 10.25.
Therefore, the whole number and rational number to the nearest half that is between 105−−−√ are 10.5 and 10.25, respectively.