Give the equation for a circle with the given center and radius. center at (-10, -4), radius = 5

The equation of circle can be given as :

(x-h)² +(y-k)²=r²

where (h,k) is center of circle and r is radius

the center is at (-10,-4) and radius =5

so equation becomes,

(x-(-10))² +(y-(-4))²=5²

(x+10)² +(y+4)²=25

The equation of the circle with the center at (-10,-4) and radius 5 is

(x+10)²+(y+4)²=5²

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.