Find the center and radius of the sphere.3x2 + 3y2 + 3z2 - 2x + 2y = 9
A. C
, a = 
B. C
, a = 
C. C
, a = 
D. C
, a = 
Answer: A
Mathematics
You might also like to view...
Find an equation of the circle satisfying the given conditions.Center at (0, 0), radius 3
A. (x - 1)2 + (y - 1)2 = 3
B. x2 + y2 = 
C. x2 + y2 = 3
D. x2 + y2 = 9
Mathematics
Write a chain rule formula for the following derivative.
for z = f(r, s); r = g(t), s = h(t)
A. 
= 
B. 
= 
+ 
C. 
= 
+ 
D. 
= 
+ 
Mathematics
State the domain of the rational function.f(x) = 
A. (-?, -63) ? (-63, ?) B. (-?, ?) C. (-?, 9) ? (9, ?) D. (-?, -9) ? (-9, ?)
Mathematics
Solve.A rectangular carpet has a perimeter of 270 inches. The length of the carpet is 89 inches more than the width. Find the dimensions of the carpet.
A. 79 in. by 102 in. B. 112 in. by 23 in. C. 112 in. by 135 in. D. 123.5 in. by 135 in.
Mathematics