Explain the relationship between the polynomial identities: x^2 − 1 = (x +1)(x − 1) and x^2 − a^2 =(x − a)(x +a).

Initially 100 milligrams of a radioactive substance was present. after 6 hours the mass had decreased by 4%. if the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (round your answer to one decimal place.)

Segment xy is dilated through point m with a scale factor of 2. which segment shows the correct result of the dilation

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.