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)

3,000,540

step-by-step explanation:

answer: 1 and 3

step-by-step explanation:

a. she will receive a refund of $278.

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guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation: