1. Are the following equations parallel, perpendicular or neither?

3 + 2 = 74 and 9 − 6 = 15

A. parallel
B. perpendicular
C. neither

2. Are the pairs of lines below parallel, perpendicular, or neither?

4x - 9y= 8 and 18x+ 8y= 7

A. parallel
B. perpendicular
C. neither

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct

if you're trying to figure out how much each ounce cost it would be 0.20

cents each ounce

your answer is  

a.

5

step-by-step explanation: