Question

WILL GIVE MEDAL!!!!!
PLEASE HELP.

Answer 1

okay I'm not sure but I will try

so the total perimeter is 78 right?

so first add up all the sides first

Answer 2

2x - 3 + 2x - 3 + 12 + 2x + x^2 = 78

which will give you

x^2 + 6x + 6 = 78

now bring the 78 to the other side and you should get

x^2 + 6x -72 = 0

Answer 3

now solve this like you do with any quadratic equation

Answer 4

H. 6 is the correct answer.

Answer 5

:/

Answer 6

yes good job

Answer 7

thanks for trying to help @nopen

Answer 8

lol good job

Answer 9

x^2 + 6x -72 = 0

if you solve this you should get two solutions for x
(x- 6) (x + 12)

Answer 10

Can anyone help me with one more question?

Answer 11

Yea sure, whats the question?

Answer 12

I attached a file with the question

Answer 13

Okay so you're solving for x only?

Answer 14

yes

Answer 15

Hmm I'm not sure because the answer I got isn't one of the answers provided.

Answer 16

@Too_Official did you try simplifying it. Thanks for your help anyways. :)

Answer 17

I just wrote the whole explanation and it got erased lol

Ok do 1 thing multiply 15x - 12y = 13 by 2

Answer 18

Yes & you're welcome

Answer 19

@L<3VE ? are you with me?

Answer 20

yes

Answer 21

okay so lets see if this works so...

try multiplying the 15x -12y = 13 by 2
what do you get?

Answer 22

13 time 2 or 13 divided by 2 what does by mean

Answer 23

no it's suppose to be like this

15x - 12y = 13 (multiplied by 2)

Answer 24

ok

Answer 25

this is just like subtracting big numbers from other numbers like you do in elementary school

Answer 26

x-33y=32?

Answer 27

not quite the negative sign is multiplying with the whole equation 30x - 9y = 4

so the 30x becomes -30x
then the -9y becomes + 9y
and teh +4 becomes -4

Answer 28

+30x and -30x gives you what?

it's like saying -1 and +1 gives you what? 0 right?

Answer 29

ok

Answer 30

so the answer would be C

Answer 31

the answer is B

Answer 32

http://postimg.org/image/4ys2z3d1b/