Your answer is 14 (rounded to the nearest tenth) cause the r of the circle is 4 and to find area is pi*r^2 and that is 50.24 minus the 64 and that is 13.76
Answer:x=6,y=−1
Step-by-step explanation:
The freezing point for antifreeze is -67 F or -55 C
Given:
<span>x^2 + y^2 + z^2 + 2x − 2y − 2z = 22
group the variables
x^2+2x + y^2-2y +z^2-2z = 22
then complete the squares
x^2+2x+1 </span>+ y^2-2y+1 + z^2-2z+1 = 22 +1 +1 +1
factor and simplify
(x+1)^2 + (y-1)^2 + (z-1)^2 = 5^2
Interpretation:
The centre of the sphere is at (-1,1,1) with a radius of 5