Answer:
C
Step-by-step explanation:
Recall the equation for a circle:
, where the center is (h,k) and the radius is r.
The given equation is:
![(x+5)^2+(y+7)^2=21^2](https://tex.z-dn.net/?f=%28x%2B5%29%5E2%2B%28y%2B7%29%5E2%3D21%5E2)
Another way to write this is:
![(x-(-5))^2+(y-(-7))^2=21^2](https://tex.z-dn.net/?f=%28x-%28-5%29%29%5E2%2B%28y-%28-7%29%29%5E2%3D21%5E2)
Thus, we can see that h=-5 and k=-7.
The center is at (-5, -7).
C = 56.55n <== this is ur equation
Answer:
Hold on a sec i cant remember
The answer would be 4 x 4 = 16+14= 30
Answer: 1012 calories
Step-by-step explanation:
Shannon burns 46 calories each hour while sleeping.
When she plays basketball, she burns 11 times as many calories as she does when sleeping. The amount of calories burnt when she plays basketball will be:
= 11 × 46
= 506 calories
She burns twice as many calories each hour when she runs than when she plays basketball. The amount of calories burnt when she runs will be:
= 2 × 506 calories
= 1012 calories
The amount of calories that Shannon burn when she runs for 1 hour will be 1012 calories