The lengths of three sides of a quadrilateral are shown below:
Side 1: 1y^2+ 3y - 6
Side 2: 4y - 7 + 2y^2
SIde 3: 3y^2 - 8 + 5y
The perlmeter of the quadrilateral is 8y3 - 2y2 + 4y - 26.

Part A: What Is the total
length of sides 1, 2, and 3 of the quadrilateral?
Part B: What is the length of the fourth side of the quadrillateral?
Part C: Do the answers for Part A and Part B show that the polynomials are closed under addition
and subtraction? Justify your answer.

4+n=5

step-by-step explanation:

this is because the four is four hours and the n represents the 1 extra hour over the weekend.

b= i'm srry i don't know that one.

4+n=5 n=1 because if vernon plays 5 hours a week then 4+1=5 hours.

hope this : )

30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared

the probability that a bird is green (.30) is true

step-by-step explanation:

191 students play sports and ninety-seven 10th graders were surveyed.

step-by-step explanation: