Ireally need the answer to this asap and you.

Y= 30

Step-by-step explanation:

180-70=110 So now you know what your other two angles add up to.

Take 110 and your two other problems (3y-20) and (y+10)

Substitute y for a random number, as in 30.

Do the math (3(30)-20)

90-20=70 [Now your previous 110 is 40}

Then for the second equation (30+10)= 40

Y=30

answer: 40392

step-by-step explanation:

10098 x 4 = 40392

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