Question

Express the perimeter of the triangle as a polynomial.
http://static.k12.com/calms_media/media/1280500_1281000/1280853/1/c56efbee2de430fee7115723bd0d464c4baa5b49/HS_A1G2_S2_03_00_MUT_201105.jpg

Answer 1

How do you find perimeter?

Answer 2

in general

Answer 3

p=a+b+c

Answer 4

good, so can you tell me our a,b, and c?

Answer 5

no it is confuseing me

Answer 6

what do a,b,c stand for?

Answer 7

the sides

Answer 8

so what are the lengths of your sides? They are each labelled

Answer 9

3x+4 5x-2 x-10

Answer 10

so now, just pick which is a,b,c it doesn't really matter

Answer 11

and say a=...
b=...
c=...

Answer 12

that is all you need to start,

Answer 13

a=3x+4
b=5x-2
c=x-10

Answer 14

purrrfect

Answer 15

now, here is the important tidbit, whenever you put that into your eq, you have to remember to put parentheses around each polynomial so that in the future when the problem is more difficult, you always get it right

Answer 16

So from here it's just a plug and chug

Answer 17

8x-6 is the answer?

Answer 18

show me each step please

Answer 19

I want to make sure you are doing it right

Answer 20

i added the front numbers 3 and 5 and got 8 and thats the only choice with 8 in it

Answer 21

(and be able to see where you went wrong)

Answer 22

not quite

Answer 23

k so let's start here:

P=a+b+c

Answer 24

the choices are
a=9x+8
b=8x-6
c=-9x+6
d=9x-8

Answer 25

I don't want the choices, I want you to do the problem

Answer 26

so, start here P=a+b+c
Input your a,b, and c

Answer 27

p=3x+4+5x-2+x-10

Answer 28

its d

Answer 29

show me every step please

Answer 30

i dont know i used a site ant it gave me and answer becouse i suck and it confuses me alot

Answer 31

Quick reprimand: Never do that. You will not learn.

Now where are you confused?

Answer 32

Also another reprimand: Never say "I suck", "I'm bad at math" or anything to that effect. If you do, you will make yourself that way. It becomes a psychological block.

Answer 33

all of it i got he answer and my grand pa help so i got it but thanks

Answer 34

...that is not how math works so please allow me to teach you the concepts

Answer 35

otherwise you'll fail

Answer 36

ok

Answer 37

so I need to know at which step, you started to be confused

Answer 38

after plugging in the ab and c i dont know what to do after

Answer 39

ok so type that step in, don't forget parentheses

Answer 40

p=(3x+4)+(5x-2)+(x-10)

Answer 41

good now, is addition commutative and associative?

Answer 42

If you don't know. Say you don't know, don't guess

Answer 43

what do you mean like is it addition commuative or addition accocitiave

Answer 44

I mean is addition commutative? Is addition associative?

Answer 45

is it neither, is it both, is it one and not the other

Answer 46

i think its comunitaive

Answer 47

commutative* and yes, it is. Can you tell me what that means?

Answer 48

And is it associative as well?

Answer 49

i dont thik it is associaative and i no

Answer 50

*think

Answer 51

ok, can you read through this for me. http://www.purplemath.com/modules/numbprop.htm

Answer 52

then let me know if you still think what you originally thought

Answer 53

i think it is also associative

Answer 54

ok in your own words, can you explain what commutative means?

Answer 55

just moving the numbers around

Answer 56

good, and can you put associative into your own words?

Answer 57

just grouping the numbers

Answer 58

good good so I want you to write something that is equal to the same thing I put below ok?

Answer 59

k

Answer 60

let e and b just be some random numbers
e+b=?

Answer 61

(b+e)

Answer 62

good, now let y be another random number can you re write
y+(e+b)=?

Answer 63

(y+b+e)?

Answer 64

yes, but can you apply associative to it

Answer 65

only let two numbers be grouped together

Answer 66

(y+b)+E

Answer 67

yup so now lets talk about adding

Answer 68

there is no such thing as subtraction, erase it from your memory

Answer 69

instead, you add a negative number for example:
4-4 turns into 4+(-4)

Answer 70

i have to go but i got a 100 i have a test tomarrow early in the morning

Answer 71

well, i recommend learning how to actually do the problems prior to the test; otherwise you will not do so well, best of luck. Maybe watch this https://www.khanacademy.org/math/arithmetic/order-of-operations/arithmetic_properties/v/associative-law-of-addition

Answer 72

and the following video

Answer 73

well the test is on history and it counts as 15% of my grade and i have to go to that in a hourbut i got a 100% on that math test