Express as a sum of logarithms.log2 xy
A. log2 x + log2 y
B. log1 x + log1 y
C. log2 x - log2 y
D. log1 x - log1 y
Answer: A
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Determine whether or not the set is well defined.{x | x is a stock on the AmEx today}
A. Not well defined B. Well defined
Find the length of the curve.x = 
(t3 - 3t), y = t2 + 5, 0 ? t ? 1
A. 
B. 
C. 
D. 2
Solve.The force needed to keep a car from skidding on a curve varies jointly as the weight of the car and the square of the car's speed, and inversely as the radius of the curve. If a force of 
is needed to keep an 
car traveling at 20 mph from skidding on a curve of radius 
what force would be required to keep the same car from skidding on a curve of radius 
-4.0px;" /> at 
Round your answer to the nearest pound of force.
A. 7462 pounds
B. 8164 pounds
C. 7594 pounds
D. 7626 pounds
Determine whether the relation represents a function. If it is a function, state the domain and range.{(41, -2), (5, -1), (5, 0), (6, 1), (14, 3)}
A. function domain: {41, 6, 5, 14} range: {-2, -1, 0, 1, 3} B. function domain: {-2, -1, 0, 1, 3} range: {41, 6, 5, 14} C. not a function