If z(t) = 2t2 + 7t – 4, find z(–2) and z(7). a. z(–2) = 11; z(7) = 101 b. z(–2) = –26; z(7) = 143 c. z(–2) = –2; z(7) = 241 d. z(–2) = –10; z(7) = 143

Asalesperson earns $320 per week plus 8% of her weekly sales. the expression representing her earnings is 320 + 0.08x. which of the following describes the sales necessary for the salesperson to earn at least $1000 in the one week?

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

Find the zeros of each function. f(x) = 6x^2 - 7x - 20