melloriablesshielle melloriablesshielle
  • 26-03-2024
  • Mathematics
contestada

Pls answer this ASAP!!!!

Evaluate each expressions for a = 7.b = 4, and c = 3

1.) 3a - 5b = ?
2.) a2 -b2 + c2 = ?
3.) 2a - 7b - 8c = ?
4.)3a - 6b + 9c = ?

Respuesta :

taylorvwalsh taylorvwalsh
  • 26-03-2024
1) 3 (7) - 5 (4) = 1

2) 7 (2) - 4 (2) + 3 (2) = 12

3) 2 (7) - 7 (4) - 8 (3) = -38

4) 3 (7) - 6 (4) + 9 (3) = 24

I’m pretty sure these are correct.
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