Match the mineral group name to the correct chemical formula. caco3 fes2 1. halide 2. silicate 3. sulfide 4. native element 5. carbonate 6. oxide 7. phosphate 8. sulfate 4. au 6. fe203 7, всаро nacl femgsi30g caf

the answer would be the third option, "no, ariel should have added 9^2 and 12^2 and compared that to 15^2."

this is found through the pythagorean theorem, which is a^2 + b^2 = c^2.

this is the correct way of solving the problem:

9^2 + 12^2 = 15^2

81 + 144 = 225

225 = 225