Please helppp meee out

9

Step-by-step explanation:

10p+12p+5p+148+149

27p+297=540

I got the 540 because it has five angles -2 equals three triangles * 180 equals 540

Subtract 297

27p=24

divide by 27

P=9

9°

Step-by-step explanation:

Sum of the interior angles of any polygon is given = (n-2)180°

where n is the no. of sides

Sum of the interior angles= (5-2)180= 3×180°=540°

Therefore, 10p+12p+149°+148°+5p= 540°

=>27p+ 297°= 540°

=> 27p= 243°

=> p= 243°/27

=> p= 9°

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