Solve.The radius of a sphere with surface area S is given by the expression 
.a) Simplify the expression.b) Find the radius of a beach ball if its surface area is 288 in.2. Express the answer in radical form.
A. a) 
; b) 
in.
B. a) 
; b) 
in.
C. a) 
; b) 
in.
D. a) 
; b) 
in.
Answer: A
Mathematics
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Determine whether the vectors u and v are parallel, orthogonal, or neither.u = 
, v = 
A. Parallel B. Neither C. Orthogonal
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