A physicist discovers an element whose atom has a mass of 0.00000000000000112 grams. He makes an entry in his journal and writes the mass in scientific notation as E.

Explain why the function is discontinuous at the given number a. (select all that apply.) f(x) = 1 x + 1 a = −1 f(−1) is undefined. lim x→−1+ f(x) and lim x→−1− f(x) exist, but are not equal. lim x→−1 f(x) does not exist. f(−1) and lim x→−1 f(x) exist, but are not equal. none of the above

How do you solving the solution of each system using elimination?

Factor this polynomial completely. 12x^2+ x-6