Question

Identify the radius of the circle whose equation is
(x - 2)2 + (y - 8)2 = 16.

Answer 1

Plzz help

Answer 2

compare your equation with the standard one:
(x - a)^ + (y - b)^2 = r^2

where r is the radius

Answer 3

so r^2 = ?

Answer 4

So the answer is 2?

Answer 5

sorry that is r^2 = 16
so r = ?

Answer 6

8

Answer 7

No r^2 means r * r

so you need the square root of 16

Answer 8

what number multiplied by itself gives 16?

Answer 9

The answer is 4

Answer 10

right

Answer 11

4^2 = 16

Answer 12

Thank you very much

Answer 13

the radius of this circle is 4

Answer 14

yw

Answer 15

The Eastern Point Lighthouse in Gloucester, Massachusetts was established in 1832 to help fishermen into the harbor. It is still used today by the Coast Guard. A fisherman along the shore wanted to know how tall it was. He is 6 ft. tall and he measures his shadow to be 1.7 ft. The lighthouse casts a shadow of 10.2 ft., approximately how tall is the Eastern Point Lighthouse?

Answer 16

sorry i've got to go right now

Answer 17

okay