Pamela is 11 years younger than jiri the sum of their ages is age is 35 what is Jiris age

Let's Jiri's age be "J" and Pamela's age be "P".

P = 11 + J (Pamela is 11 years older than Jiri) ... equation 1

P + J = 35 (the sum of their ages is 35) ... equation 2

Put equation 1 into equation 2:

(11+J) + J = 35

11 + 2J = 35

2J = 35 - 11

2J = 24

J = 24/2

J = 12

Therefore,Jiri's age is 12.

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