BRANLYIST IF YOU ASWER ALL 21 WITH RIGHT ASWERS connetions academy UNIT 5 LESSON 7 1. which polynomial does the model represent?

A -x^3+2x^-3x+2
B x^2+x-2
C -x^2-x+2
D -x^2+x-2

for questions 2 and 3 simplify each polynomial.

2. 3x^+6-2x+5x-4x^2+9

A -x^2+3x+15
B 7x^2+3x+3
C x^2-3x+15
D -x^+7x+15

3. 3x^2+5x-7x+3-5x^2+2

A -2x^2+2x+5
B -2x^2-2x+5
C 2x^2-2x+5
D 2x^2+2x+5
​

1/5x+9 2/5y+7

step-by-step explanation:

1e+27

step-by-step explanation:

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!