What is the first step in writing f(x) = 6x2 + 5 - 42x in vertex form?

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

Me! last question, and i'm stuck! write the algebraic expression that models the word phrase. the product of 2 divided by the number h and 8 more than the number k

What is the value of x in the equation (2)3) (x+6)= -18 a. -36 b. -33 c. -24 d. -18