Question

A radio station has a broadcast area in the shape of a circle with equation x^2 + y^2 = 5,625, where the constant represents square miles.

Answer 1

whats the question ?

Answer 2

A radio station has a broadcast area in the shape of a circle with equation x^2 + y^2 = 5,625, where the constant represents square miles.

Answer 3

I'm very confused on it.

Answer 4

thats just an information, anything to fin out ??

Answer 5

*find

Answer 6

please post entire Question...

Answer 7

a. Graph the equation and state the radius in miles.
b. What is the area of the region in which the broadcast from the station can be picked up?

Answer 8

x^2+y^2 =r^2 is the circle with centre = (0,0)
and radius = r

Answer 9

so, x^2 + y^2 = 5,625 is the circle with centre = (0,0)
and radius \(= \sqrt{5625}=...?\)

Answer 10

75?

Answer 11

yes, thats the radius in miles.
r=75 miles.
then area = \(\pi r^2\)

Answer 12

17662.5?

Answer 13

is that right?

Answer 14

accurately, its 17671.46 sq. miles.

Answer 15

Is that the answer?

Answer 16

yup, for part b)

Answer 17

I figured out par A already. Could you help me with a few more, every time I ask my teacher for help she gets frustrated with me?

Answer 18

part*

Answer 19

can i request you to ask in separate post ?
so that if i am unavailable, others can help you....

Answer 20

Yes I just posted another