Question

Pls help me with this

Answer 1

Answer:

D at 8.8

im not sure brainliest please ok

Answer 2

Answer:

The answer is C at 8.1.

Step-by-step explanation:

To find $\sqrt{66}$, start by finding the two consecutive perfect squares that 66 lies between them. The two perfect squares are 64 ($8^{2}$) and 81 ($9^{2}$). So, the whole number part of the square root of 66 will be 8.

Now, for the decimal part, use the following formula:

(Given number - Smaller perfect square) / (Greater perfect square - Smaller perfect square)

Then, put in the known information, which will look like:

(66 - 64)/(81 - 64) = 2/17 = 0.117

Finally, $\sqrt{66}$ is 8.117, so the answer is C at 8.1.