Mathematics, 14.12.2020 21:40 Rileyb101207
Helene is finding the sum (9 + 10i) + (–8 + 11i). She rewrites the sum as (–8 + 11)i + (9 + 10)i. Which statement explains the property of addition that she made an error in using? Helene incorrectly used the commutative property by changing the order of the two complex numbers. Helene incorrectly used the associative property by changing the order of the two complex numbers. Helene incorrectly used the identity property by combining the real number and the coefficient of the imaginary part. Helene incorrectly used the distributive property by combining the real number and the coefficient of the imaginary part.
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Helene is finding the sum (9 + 10i) + (–8 + 11i). She rewrites the sum as (–8 + 11)i + (9 + 10)i. Wh...
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