Question 8

Explanation

Given the function operation definition $W(P@Q\#R) = 2P^2 - Q + 3\sqrt{R}$.

We are asked to find the value of $W(5@8\#4)$.

Based on the position of variables in the function definition, we can identify the following values:

• $P = 5$
• $Q = 8$
• $R = 4$

Substitute these values into the function equation:

Perform the calculation step by step:

1. Calculate the square: $5^2 = 25$
2. Calculate the square root: $\sqrt{4} = 2$

Then the equation becomes:

So, the value of $W(5@8\#4)$ is $48$.