samhitha5260 samhitha5260
  • 15-08-2019
  • Mathematics
contestada

if a=12, b=6, c=-10, verify
1) Associative property under addition
2) Distributive of multiplication over subtraction

Respuesta :

cblue8282 cblue8282
  • 15-08-2019

1) Associative property under addition: (a + b) + c = a + (b + c)

Substitute: (12 + 6) + -10 = 12 + (6 + -10)

Add (parentheses): 18 - 10 = 12 + -4

Add: 8 = 8

Therefore the associative property under addition is true

2) Distributive property of multiplication over subtraction: a(b - c) = ab - ac

Substitute: 12(6 - -10) = (12 * 6) - (12 * -10)

Simplify: 12(16) = (72) - (-120)

Simplify: 192 = 192

Therefore the distributive of multiplication over subtraction is true.

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