Find the value of x such that the data set has the given mean 99, 86, 76, 95, x; mean 91 a) x =91 b) x=87 c) x=82 d) x=99

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

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

Which number completes the inequality? 2/3 < _ < 7/9