11. Which regular polygon has a minimum rotation of 45° to carry the polygon onto itself? A. octagon

B. decagon

C. hexagon

D. pentagon

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

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

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota