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Evaluate the expression for w = –6, x = 6, and y = –1.9.

Write your answer as a decimal or whole number.

x2 + w − y =

1 answer

To evaluate the expression \( x^2 + w - y \) for \( w = -6 \), \( x = 6 \), and \( y = -1.9 \), we can substitute these values into the expression.

  1. Substitute the values: \[ x^2 = 6^2 = 36 \] \[ w = -6 \] \[ y = -1.9 \]

  2. Plug the values into the expression: \[ x^2 + w - y = 36 + (-6) - (-1.9) \]

  3. Simplify the expression step by step:

    • First, calculate \( 36 - 6 \): \[ 36 - 6 = 30 \]
    • Now, add \( -(-1.9) \) which is \( +1.9 \): \[ 30 + 1.9 = 31.9 \]

The final result is: \[ \boxed{31.9} \]