Expand and evaluate the series n=5 ai=2×i^2+3

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

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0