Identify the ordered pair that represents the vector from A(1,6) to B( 2, -3) and the magnitude of AB-

a. (2,-4) 189 x 11.0554

C (2. - 10), 1/84 10.0554

b. -10,3) 178 x 7.0554

d. (1, - 9), 182 x 9.0554

Given ab and cb are tangents of p, and m =10°. what is the measure of abp?

Identify the expression equivalent to 4(x + x + 7) − 2x + 8 − 4 by substituting x = 1 and x = 2.

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?