Question

Can someone show me how to justify the steps in this?

EC bisects 10 years ago

Answer 1

it looks wrong

Answer 2

It is?

Answer 3

dang it, well i guess you can help me with making it first

Answer 4

Please post the instructions and the diagram.

What is this --> AEC a triangle, angle, or something else.

@MrNebula

Answer 5

It is good to mark up the diagram with the given information on these problems.

Answer 6

ok

Answer 7

The 3 marked angles form a straight angle which has measure 180.

First Step:

Solve this for x.

11x - 12 + 4x + 1 +4x + 1 = 180

Answer 8

Ya i get it

Answer 9

What did you get for x?

Answer 10

9x = 180

Answer 11

11x - 12 + 4x + 1 +4x + 1 does not equal 9x. Try again.

Answer 12

-1x + 10x?

Answer 13

wait I got 5x now

Answer 14

What is 11x + 4x + 4x =

Answer 15

19x but you ignored the -12x and -1's

Answer 16

>>but you ignored the -12x and -1's

For then, yes. But not now.

What is -12 +1 + 1= ?

Answer 17

-10

Answer 18

this is the same stuff i did with my teacher when did i go wrong?

Answer 19

So,

11x - 12 + 4x + 1 +4x + 1 = 19x -10

Answer 20

19x - 10 = 180

What is the value of x in the equation.

Answer 21

Add 10 to both sides and solve for x.

Answer 22

What is x.

Answer 23

= 19x = 190

Answer 24

19x = 190

x = 190 divided by 19

x =?

Answer 25

oh 10 derp

Answer 26

At last.... yes!

Now, note that < AEC is made up of two angles.

Answer 27

m<AEC = 11x -12 + 4x + 1


m<AEC = 11* ( 10 ) - 12 + 4* (10 ) + 1

m<AEC =

Answer 28

It's all over when you crank out the measure of <AEC.

Answer 29

@MrNebula How is it going with that calculation?

Answer 30

-9.5?

Answer 31

Im assuming good?

Answer 32

No

Answer 33

Put this in the Google search box and the calculator will crank this out.

Cut and paste: " 11* ( 10 ) - 12 + 4* (10 ) + 1 "

Answer 34

139 but thats what got befor

Answer 35

m<AEC = 11* ( 10 ) - 12 + 4* (10 ) + 1

m<AEC = 110 - 12 + 40 + 1

Answer 36

You got this before: -9.5?

That is not correct.

Answer 37

No not that i guess i screwd up a number in the calc

Answer 38

Look at the top, my answer

Answer 39

I got 139 for m<AEC.

Answer 40

My Answer:
11x-12+8x+2=180
19x-10+180
19x+190
x+10
11*10-12= 98
4*10+1=41
41*2=82
98+82=180
98+41=139
AEC=139

Answer 41

I did that with help from someone else a week or two ago

Answer 42

That looks like something cranked out by one of those mama-pappa calculators.

Here is the deal. You may have had a correct answer but there was not way I could tell with out drawing the diagram, seeing how the parts fit together, and all that.

As they say about a trip: It is not the destination but the journey.

Same here: It is not the answer but how to get it.

Answer 43

Thanks for participating and being active in the thread. I appreciate that.

Answer 44

Thats how he answerd me so fast!

Answer 45

Thank you but can you now help me justify each step?

Answer 46

Yes, and he did not explain how he set up the equation.

Answer 47

No he didn't

Answer 48

You are more helpful

Answer 49

I thought I justified each step as I went along.

Answer 50

Oh i have to go back through
Like with
Substitution Prop of Equality
Multiplication Prop
Addition Prop of Equality
and so on

Answer 51

Oh i have to go back through
Like with
Substitution Prop of Equality
Multiplication Prop
Addition Prop of Equality
and so on

Answer 52

I don't think that those steps go with this problem. I think that it is more about theorems.

Are you to justify the steps in solving the equation or are you to justify how you set up the equation. It is not clear what is to be justified. Check the problem statement.

Answer 53

The steps to solve

Answer 54

But i think i got this part down i found it in my book