Evaluate the expression for u = –1.8.

Question

Write your answer as a decimal or whole number.

–11u − 1 =

Answer 1

To evaluate the expression \(-11u - 1\) for \(u = -1.8\), we start by substituting \(-1.8\) for \(u\):

\[ -11(-1.8) - 1 \]

Now, calculate \(-11 \times -1.8\):

\[ -11 \times -1.8 = 19.8 \]

Now, substitute this value back into the expression:

\[ 19.8 - 1 \]

Now, perform the subtraction:

\[ 19.8 - 1 = 18.8 \]

Thus, the value of the expression when \(u = -1.8\) is:

\[ \boxed{18.8} \]