A department store is having a sale. All jeans are on sale for 15% off. if a pair of jeans originally cost $115.00,what is the sale price of jeans? A.$17.25
B.$97.75
C.$100.00
D.$114.85

The answer is 97.75

Step-by-step explanation:

115x.15=17.25

115-17.25=97.75

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