A ship's sonar finds that the angle of depression to a ship wreck on the bottom of the ocean is 10.2° . If a point on the ocean floor is 84 meters directly below the ship, how many meters, to the nearest

tenth, is it from that point on the ocean floor to the wreck?

A. 428.7 m

B. 466.9 m

C. 473.4 m

D. 477.3 m

step-by-step explanation:

if u want da anser kill your teeser ifu hav wun

english, cause i can’t you

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