Final answer:
The geometric mean of 5 and 15 is found by multiplying the two numbers together and taking the square root of the result, which is approximately 8.66.
Step-by-step explanation:
The geometric mean of two numbers is the square root of the product of the two numbers. In this case, the two numbers are 5 and 15. To find their geometric mean, you multiply them together to get 75 and then take the square root of 75.
The calculation will be as follows:
- Multiply the two numbers: 5 × 15 = 75
- Find the square root of the product: √75 ≈ 8.66
Therefore, the geometric mean of 5 and 15 is approximately 8.66.