Ciarra, who is 5 ft tall, Is standing on the roof of a 66 ft tall building looking at the horizon. She hears barking and looks down to see a small dog across the street sniffing at a fire hydrant. Ciarra estimates that she is about 84 ft from the fire hydrant. Find the angle of depression that Ciarra’s line of sight makes from when she is looking at the horizon to when she looks down at the dog.

360/29

step-by-step explanation:

a

step-by-step explanation:

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

we now create space between the x and y terms with parenthesis.

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

we add the squares to both sides.

simplify.

and write the quadratics in factored form.

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.

step-by-step explanation:

what is the figure? attach a picture.