Is AB perpendicular to CD? Explain. O Yes, because the slope of AB is 5/3 and the slope of CD is -3/5
O Yes, because the slope of AB is 4/3 and the slope of CD is -3/4
O No, because the slope of AB is 5/3 and the slope of CD is -3/4
O No, because the slope of AB is 4/3 and the slope of CD is -3/5

Nick and nora are married and have three children in college. they have an adjusted gross income of 47,400. if their standard deduction is 12,600 itemized deductions are 14,200 and they get an exemption of 4000 for each adult and each dependent what is their taxable income

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?

Multiply and simplify 2x^2 y^3 z^2 · 4xy^4 x^2