A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
The lengths of two sides of a triangle are shown below:
Side 1: 3x2  2x  1
Side 2: 9x + 2x2  3
The perimeter of the triangle is 5x3 + 4x2  x  3.
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.
anonymous
 one year ago
The lengths of two sides of a triangle are shown below: Side 1: 3x2  2x  1 Side 2: 9x + 2x2  3 The perimeter of the triangle is 5x3 + 4x2  x  3. 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.

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0they really stretch to make these word problems don't they? first step is to add \[3x^22x1+9x+2x^23\] aka combine like terms

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0second step is to subtract that result from \[5x^3+4x^2x3\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0third step is to say "yes" they are closed under addition and subtraction since you get a polynomial for an answer
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.