part 3. below are some symbolized arguments in standard form. some of them are fallacies of affirming the consequent (ac), denying the antecedent (dn), or undistributed middle (um). identify each by writing the abbreviation in the blank. if an argument is none of these forms, write n. this section asks you to stretch what you know into a new kind of problem. use what you know from the homework and sections 1 and 2 of this exam to solve them. (4 points each, 20 total)
1. 1. ( b & c ) ? d ~ ~ (b & c)
2. ( b & c ) ? d ~ ( b & c ) ~ d
3. ~ c ? a ~ a
4. c ? i c
5. d ? c d ? c

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

step-by-step explanation:

is their an equation anywhere i can take a   look at it and see if i am right.

on the middle line

step-by-step explanation:

1/5=50

can i see a photo of the question so i can you?