Martin has a collection of 130 pennies, 10% of which are more than 100 years old. Naomi has a collection of 80 pennies, 15% of which are more than 100 years old. Which person,
Martin or Naomi, has the greater number of pennies that are more than 100 years old?

the thermometer is precise but not accurate

step-by-step explanation:

i hope this is what you were looking for.

see attached graph

answer

step-by-step explanation:

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