hellospeedmind

Thank you for your answers.

Thank you for your answer!!

Thank you for your quick answer!!

I was on Khan Academy. I typed in the answer, and it turns out that y=0.5cos((2π/9)​x−(7π/9​))−4.5 is the answer. 

I appreciate your answer. Thank you so much CalculatorUser!!!

I'm pretty sure that the equation would be 

(x+3)^2+(y+7)^2=49

i believe that the radius would be 7, meaning that the right side of the equation would equal 49.

I think the answer is 448. Can someone check for me?

Thank You for your detailed answer.

Please answer ASAP.

Angle BED is 18+5x

Angle DEA is 162-5x

Angle CEB is 162-5x

Angle CEB = Angle DEA

Angle BED = Angle CEA