If –1 is a root of f(x), which of the following must be true?
a factor of f(x) is (x – 1).
a factor of f(x) is (x + 1).
both (x – 1) and (x + 1) are factors of f(x).
neither (x – 1) nor (x + 1) is a factor of f(x).

The deck that kenneth is building is in the shape of a parallelogram abcd the measure of angle c is one third the measure of angle b find the measure of each angle of the deck

Multiply. write your answer in simplest form. 3/8 x 5/7

Raj encoded a secret phrase using matrix multiplication. using a = 1, b = 2, c = 3, and so on, he multiplied the clear text code for each letter by the matrix to get a matrix that represents the encoded text. the matrix representing the encoded text is . what is the secret phrase? determine the location of spaces after you decode the text. yummy is the corn the tomato is red the corn is yummy red is the tomato