Use the definition of continuity and the properties of limits to show that the function is continuous at the given number a. f(x) = x + 4x4 3 , a = −1 lim x→−1 f(x) = lim x→−1 3 = lim x→−1 x + lim x→−1 x4 3 = −1 + 4 4 3 = f(−1) = Thus, by the definition of continuity, f is continuous at a = −1.

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.

Victor is a mechanic who wants to ensure he has enough funds during his old age. which account will be of benefit to victor? a. checking account b. savings account c. money market account d. individual retirement account