0,5√121+3√0,81

To find the value of the expression 0.5√121 + 3√0.81, we can simplify each square root separately and then add the results.

First, let's simplify √121: √121 = 11 (since 11 * 11 = 121)

Next, let's simplify √0.81: √0.81 = 0.9 (since 0.9 * 0.9 = 0.81)

Now we can substitute these simplified values into the original expression: 0.5√121 + 3√0.81 = 0.5 * 11 + 3 * 0.9

Calculating the individual terms: 0.5 * 11 = 5.5 3 * 0.9 = 2.7

Now we can add the results together: 5.5 + 2.7 = 8.2

Therefore, the value of the expression 0.5√121 + 3√0.81 is 8.2.