V0,04 • V81 - 7 V1/ 49

To simplify this expression, we follow the order of operations: parentheses, exponents, multiplication and division from left to right, and addition and subtraction from left to right.

Given expression: V0.04 • V81 - 7 • V1/49

First, let's simplify the square roots: V0.04 = √0.04 = 0.2 V81 = √81 = 9 V1/49 = √(1/49) = 1/7

Now substitute the values back into the expression: 0.2 • 9 - 7 • 1/7

Now perform the calculations: 0.2 • 9 = 1.8 7 • 1/7 = 1

Finally, complete the calculation: 1.8 - 1 = 0.8

Therefore, the final simplified result is 0.8.