kroe417

12.03.2021 • 

Mathematics

The lengths of two sides of a triangle are shown. Side 1: 3x2 − 4x − 1

Side 2: 4x − x2 + 5

The perimeter of the triangle is 5x3 − 2x2 + 3x − 8.

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

Part B: What is the length of the third side of the triangle? Show your work. (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)

Ответ:

coopera1744

28.04.2022

Mathematics

---

-15 / 20 = -0.75

-2/3 = -0.66
-9/12 = -0.75
-12/16 = -0.75
-25/30 = -0.83

Therefore B and C are the correct answers.

---

0,0(0 оценок)