The perimeter of the original rectangle is 16 feet.

A small rectangle has a length of 6.2 feet and width of 1.8 feet. A larger rectangle has a length of 12.4 feet and width of blank.

Not drawn to scale

What is the perimeter of the enlarged rectangle? Round to the nearest tenth if necessary.

22.3 feet

31 feet

32 feet

42.7 feet

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

thus, the first answer choice, y = sec x, is the correct one

he answer is x=1x3 because x=1 to x=3