(I WILL GIVE BRAINLIEST!) A footbridge is in the shape of an arc of a circle. The bridge is 3.5 ft tall and 20 ft wide. What is the radius of the circle that contains the bridge? Round to the nearest tenth.

the balance is found at the link

step-by-step explanation:

answer: idk wbu

step-by-step explanation:

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

0lz try yourself sorry for not answering