Respuesta :

Space

Answer:

8

General Formulas and Concepts:

Pre-Alg

  • Order of Operations: BPEMDAS

Step-by-step explanation:

Step 1: Define

1/2xy²

x = 4

y = -2

Step 2: Solve

  1. Substitute:                    1/2(4)(-2)²
  2. Exponents:                   1/2(4)(4)
  3. Multiply:                        2(4)
  4. Multiply:                        8