Which equation demonstrates the additive identity property? (7 + 4 i) + (7 minus 4 i) = 14 (7 + 4 i) + 0 = 7 + 4 i (7 + 4 i) (1) = 7 + 4 i (7 + 4 i) + (negative 7 minus 4 i) = 0

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.  

1/2*qr*rs

step-by-step explanation:

question 1: step-by-step explanation:

1/4 of 84 = 84÷4= 21

hi there!

the answer is: 2 and -2

step-by-step explanation:

case 1: an absolute value of positive number will still be a positive number

so absolute value of 2 is 2

case 2: an absolute value of negative number will be positive number so absolute value of -2 is 2