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what is the value of the expression?

−2/9−(−1/3÷3/5)

enter your answer, as a fraction in simplest form, in the box.

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Step-by-step explanation:

−2/9−(−1/3÷3/5)

=-2/9-[(-1/3)*(5/3)]

=−2/9−[−1*5/3*3]

=−2/9−(−5/9)

=(-2+5)/9

=3/9

=1/3

As the question says "Enter your answer, as a fraction in simplest form", 3/9 is NOT the right answer.

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