Use the given information to find the equation of the circle.Center: (2, 0); radius: 
A. (x + 2)2 + y2 = 11
B. x2 + (y + 2)2 = 121
C. (x - 2)2 + y2 = 11
D. x2 + (y - 2)2 = 121
Answer: C
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Use the graph to evaluate the expression.Find (f ? g)(4) and (g ? f)(3).
A. (f ? g)(4) = 3; (g ? f)(3) = 0 B. (f ? g)(4) = 35; (g ? f)(3) = 0 C. (f ? g)(4) = 29; (g ? f)(3) = -24 D. (f ? g)(4) = 35; (g ? f)(3) = 18
Tell whether the relation is reflexive, symmetric, or transitive on the set of subsets of a nonempty set. Also tell whether the relation is an equivalence relation."Has a larger cardinal number than"
A. Transitive and symmetric; not an equivalence relation B. Transitive; not an equivalence relation C. Symmetric; not an equivalence relation D. None; not an equivalence relation
Solve for the missing values. Round money to the nearest cent, rate to the nearest tenth of a percent, and time to the nearest day.Principal: $3743Interest: 
Rate: 9.8%Time: 217 daysMaturity value: 
A. $208.03; $3951.03 B. $224.22; $3967.22 C. $228.13; $3971.13 D. $221.11; $3964.11
Solve for the requested variable.y varies directly as x and inversely as the square of z, and y = 20 when x = 32 and z = 4. Find y when 
and z = 2.
A. y =200 B. y = 100 C. y =6.25 D. y =50