Select the correct answer
what is the general form of the equation of a circle with center at (a, b) and radius of length m?
a. x2 + y2 - 2ax – 2y + (a+ b2 - m2) = 0
'b.
x2 + y2 + 2ax + 2by + (a2 +62 – m2) = 0
c. x2 + y2 - 2ax - 2by + (a + b - m2) = 0
x2 + y2 + 2ax + 2by + a2 + b2 = -m2
reset
next

option d is right

Step-by-step explanation:

x2+y2+2ax+2by+a2+b2=-m2

I thinks it's right

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47

nope.   happens to me as well.

-aparri