You can pick a symbol, maybe m or z to be the symbol.
It's the first choice. If you multiply the first equation by 3, your y term is a +12, and if you multiply the second equation by 4, your y term is a -12. When you add them the y terms cancel each other out.
7. Irrational
8. Not a real number, but answer would be 4i
9. Undefined
10. Rational
11. Rational
12. Rational
13. Irrational
14. Rational
Answer:
2.456 × 10∧11
Step-by-step explanation:
<span>a. 93.312 cm
im sure thats the answer
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