Find the probability of the compound event.An urn contains balls numbered 1 through 15. A ball is chosen, returned to the urn, and a second ball is chosen. What is the probability that the first and second balls will be a(n) 6?
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Determine whether the set is well defined or not.{x : x is a four-year college in Georgia}
A. Well defined B. Not well defined
Mathematics
Evaluate the expression.
A. 1 B. 80,640 C. 0.5 D. 40,320
Mathematics
Convert the radian measure to degrees. Round to the nearest hundredth if necessary.- 
A. -45?°
B. -0.79°
C. - 
°
D. -45°
Mathematics
Solve the problem.A balloon (in the shape of a sphere) is being inflated. The radius is increasing at a rate of 11 cm per second. Find a function, r(t), for the radius in terms of t. Find a function, V(r), for the volume of the balloon in terms of r. Find (V ? r)(t).
A. (V ? r)(t) = 
B. (V ? r)(t) = 
C. (V ? r)(t) = 
D. (V ? r)(t) = 
Mathematics