This question is from apex: algerba 1 sem 2: 3.5.3 quiz ( ! ) whats is the result of substituting for y in the bottom equation? y=x-3 y=x2+2x-4 (answers: ) a. x-3=x2+2x-4 b. y=(x-3)2+2(x-3)-4 c. y=x2+2x-4-(x-3) d. (x-3)=x2

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?

Rewrite the polynomial -9x5 + 36x4 + 189x3 in factored form.

Which of the following statements must be true about this diagram? check all that apply. x°, y°, z°, & w°