Question

Which number is the closest approximation to the value of √13 + √21?

A. 6
B. 7
C. 8
D. 9

Answer 1

The closest approximation to the value of √13 + √21 is 8.

Step-by-step explanation:

To find the closest approximation to the value of √13 + √21, we need to calculate the square roots and add them together. Using a calculator, we find that √13 ≈ 3.6056 and √21 ≈ 4.5826. Adding these values together, we get approximately 8.1882. The closest whole number to this value is 8.

Therefore, the closest approximation to the value of √13 + √21 is 8.