Part 1: Simplify each expression.
Use the trigonometric identities to simplify each expression.

Enter the number of complex zeros for the polynomial function in the box. f(x) = x+ + 5x² +6

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

Which graph represents the parent function of y=(x+2)(x-2)