Question

Help With Proofs Please :S

Answer 1

@SolomonZelman @ngott3 @ehuman

Answer 2

are there options for this?

Answer 3

no @ngott3
I need to write my steps and answer

Answer 4

@nikato help?

Answer 5

since angle 3 is a right angle and is a supplementary angle to angle 1+2 then angle 1+2+3 must be 180 degrees so therefore 180-angle 3 is 90 degrees

Answer 6

im not sure if thats what u wanted :S

Answer 7

So which property would I use for the proof?

Answer 8

I think it's subtraction propo of equality

Answer 9

Ur just subtracting 90 on both sides

Answer 10

yea im totally confused :S

Answer 11

U can also say converse of addition property of equality

Answer 12

Alrightyy, but there more to come so if you could help it would be great, thanks(:

Answer 13

Ok

Answer 14

I think its pretty similar

Answer 15

No, it's substitution

Answer 16

substitution property Of equality?

Answer 17

U substitute step 2

Answer 18

Yes, but I think u can just put substitution

Answer 19

Okay so since they are supplementary it has to =180
and okay

Answer 20

Wait, what's that^

Answer 21

I have to substitute right, sorry Im confused :s

Answer 22

ur doing step 5, right?

Answer 23

So heres the next one

Answer 24

ok, what do u call when u do this

a(b+c)=ab+ac

Answer 25

Reflexive property? Or distribute?

Answer 26

or simplify:s

Answer 27

distribute, see ur distribute the a

Answer 28

reflexive is a=a

Answer 29

So the proof would be property of distribution?

Answer 30

well, the reason for that step would be distribution, not the proof

Answer 31

yeah so which property wouild I use for the blank, or thereom

Answer 32

distribution for where the question mark is

Answer 33

alright

Answer 34

Heres the next one

Answer 35

@Chooch146 help?

Answer 36

http://openstudy.com/study#/updates/50104f26e4b009397c6848ae

Answer 37

its given. u should read ur problem more caregully

Answer 38

you sure its not associative property of addition?

Answer 39

I mean addition property of equality?

Answer 40

no, becuz step 1 is exavtly whats given

Answer 41

Last 2 collum proof question

Answer 42

@Chooch146 @ehuman @emilyhaddad @zedd @myininaya @nikato @ngott3 help :/

Answer 43

its the same problem

Answer 44

The question mark is in a different place, is it now given ?

Answer 45

nm it is, thanks errybody