Solve. Check for extraneous solutions.(x - 6)1/2 = -2
A. {10}
B. {4}
C. {16}
D. ?
Answer: D
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Find the sum of the series by recognizing how it is related to something familiar.
A. 
B. x3e-4x
C. 
D. x3e4x
The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 0 for r(t) = t2i + (10t3 - 5)j + 
k
A. a(0) = 2i - 
k
B. a(0) = 2i - 
k
C. a(0) = 2i + 
k
D. a(0) = 2i - 
k
Write the rational expression in simplest form.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Solve.While traveling at a constant speed in a car, the centrifugal acceleration passengers feel while the car is turning is inversely proportional to the radius of the turn. If the passengers feel an acceleration of 9 feet per second per second when the radius of the turn is 40 feet, find the acceleration the passengers feel when the radius of the turn is 120 feet.
A. 5 feet per second per second B. 4 feet per second per second C. 3 feet per second per second D. 6 feet per second per second