Can someone please help me with this please?

Step-by-step explanation:

Find the discrimant of the function.

Since -296 is less than 0, there is no real roots. There is only complex roots.

127

whether it's diameter, or radius, i believe if i remember correctly from school, every amount has to always add up to 180. so if you take 53, and starting adding, long story short, taking 127 and adding it to 53, gives you 180.