Find the equation of the circle whose center and radius are given.
center (7.-3), radius = 7

(x - 7)² + (y + 3)² = 7

Step-by-step explanation:

The equation of a circle is denoted by: , where is the centre and r is the radius.

Here, the centre is (7, -3), which means and . The radius is r = √7. Plug these values into the formula:

Thus, the answer is (x - 7)² + (y + 3)² = 7.

~ an aesthetics lover

step-by-step explanation: noo

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,