Question

FAN AND MEADL!!!!!!!!!!!!!!!!!!!!!!

Answer 1

The lengths of two sides of a triangle are shown below:

Side 1: 5x2 + 2x - 3
Side 2: 8x - 3x2 + 2

The perimeter of the triangle is 2x3 - 5x2 + 4x - 8.

Part A: What is the total length of the two sides, 1 and 2, of the triangle? (4 points)

Part B: What is the length of the third side of the triangle? (4 points)

Part C: Do the answers for Part A and Part B show that the polynomials are closed under addition and subtraction? Justify your answer. (2 points)

Answer 2

Perimeter of a triangle (P) = A + B + C

A = 5x2 + 2x - 3
B = 8x - 3x2 + 2
C = ?
P = 2x3 - 5x2 + 4x - 8

Answer 3

Do you understand? @HelloKitty17

Answer 4

sort off

Answer 5

Part C 2x3 - 7x2 -6x - 7

Answer 6

demonstrated by the fact when you combine the side 1, side 2 and the result of side 3 you get the given perimeter

Answer 7

DO NOT LISTEN TO @misssunshinexxoxo she is copying off google

Answer 8

THIS IS HER SOURCE http://openstudy.com/study#/updates/52e6f2f4e4b096fa405afed0

Answer 9

Not true; I setup the equation

Answer 10

Yes the last part recited it

Answer 11

i see you on that quaetion you copy cat

Answer 12

question

Answer 13

UN MEDAL HER EVERYONE IT IS NOT HER OWN WORDS SHE DOES NOT DESERVE IT

Answer 14

now she left the question

Answer 15

I'm still here

Answer 16

no the question you copied

Answer 17

I verified the answer and double checked it

Answer 18

Part A is 7x^2 + 2x +1

Answer 19

Please stop the harassment

Answer 20

Part B is 4x^3 -10x^2 - 7

Answer 21

Wrong it is 5x^2 + 2x - 3

Answer 22

8x - 3x^2 + 2

Answer 23

how do you know you are just copying and you have no title

Answer 24

Sir that isn't my source; double check what I wrote

Answer 25

Before you go "accusing" make sure your statements are valid and stop spamming a question

Answer 26

@HelloKitty17 i deseve the medal because i am actually working the problem out

Answer 27

actually you are spamming it

Answer 28

Not at all, sir; you are invalidating by harrassment

Answer 29

GUYS STOP AND JUST HELP GET THE RIGHT ANWERS!!!!!!

Answer 30

HOW ON EARTH AM I HARASSING YOU CAN SOMEONE EXPLIAN THAT TO ME

Answer 31

@misssunshinexxoxo what grade are you in?

Answer 32

University leveled and 12th grade, sir

Answer 33

well i am 11th grade level and i am in 6th grade

Answer 34

Make no sense at all

Answer 35

Part A

Total length = Side 1 + Side 2
= 8x^2 - 5x - 2 + 7x - x^2 + 3
= 7x^2 + 2x + 1 answer//


Part B

perimeter = a + b + c
4x^3 - 3x^2 + 2x - 6. = 8x^2 - 5x - 2 + 7x - x^2 + 3 + C
4x^3 - 3x^2 + 2x - 6 = 7x^2 + 2x +1 + C
4x^3 - 3x^2 - 7x^2 + 2x - 2x - 1 - 6 = C
C = 4x^3 - 10x^2 - 7 answer//

C justifyed in part a and b

Answer 36

Help @HelloKitty17 the way you know; my answers are valid and not fron a third party source.

Answer 37

Incorrect, sir

Answer 38

Side 1 = 8x² - 5x - 2
Side 2 = 7x - x² + 3
Perimeter, P = 4x³ - 3x² + 2x - 6

A. ) Length, L = Side 1 + Side 2

Subbing known values,

L = 8x² - 5x - 2 + 7x - x² + 3
L = 8x² - x² - 5x + 7x - 2 + 3
L = 7x² + 2x + 1

Total Length of Two Sides = 7x² + 2x + 1
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

B.) Third Side, S = P - Side 1 - Side 2

Subbing,

S = 4x³ - 3x² + 2x - 6 - (8x² - 5x - 2) - (7x - x² + 3)
S = 4x³ - 3x² + 2x - 6 - 8x² + 5x + 2 - 7x + x² - 3
S = 4x³ - 3x² - 8x² + x² + 2x + 5x - 7x - 6 + 2 - 3
S = 4x³ - 10x² - 7

Third Side = 4x³ - 10x² - 7
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

C.) Adding or subtracting the polynomials yields polynomials so they are closed under addition and subtraction.