Write a polynomial function of f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros: -4, -2,5

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

Given the graphed function below which of the following orders pairs are found on the inverse function

Statements reasons 1. ab ? cd; ad ? bc 1. given 2. ac ? ac 2. reflexive property 3. ? adc ? ? cba 3. ? 4. ? dac ? ? bca; ? acd ? ? cab 4. cpctc 5. ? dac and ? bca are alt. int. ? s; ? acd and ? cab are alt. int. ? s 5. definition of alternate interior angles 6. ab ? cd; ad ? bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3?