Harvey chooses four integers. The mode of these four numbers is 9, the range is 10 and the mean is 12.
Find Harvey's four numbers.
Write the numbers in ascending order.
[4]

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

For what values of x is x2 + 2x = 24 true?

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).