The plot below shows the amount of rainfall in 10 counties during the month of July. +
+
+
+
1
+
1; 1; 1;
0
1
2
Rainfall in Virginia counties (inches)
What is the total number of inches of rain that fell in the 3 rainiest counties?
All measurements are rounded to the nearest
inch
inches

answer4 to the second power is 16

and 4 to the third power is 64,

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