Solve the problem.Martina bought 5 books to bring on vacation. However she decided that her bag was too heavy and that she wouldn't bring all of them. How many possible subsets are there if she brings at least one book but not all 5 books?
A. 31
B. 27
C. 4
D. 30
Answer: D
Mathematics
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Solve the problem.A wheel with radius 2 m rolls at 19 rad/s. How fast is a point on the rim of the wheel rising when the point is 
radians above the horizontal (and rising)? (Round your answer to one decimal place.)
A. 38.0 m/s B. 19.0 m/s C. 76.0 m/s D. 9.5 m/s
Mathematics
Find the Cartesian coordinates of the given point.(-4, -?/3)
A. (-2
, 2)
B. (-2, 2
)
C. (-2
, -2)
D. (2, 2
)
Mathematics
Give the center and radius of the circle described by the equation and graph the equation.(x - 1)2 + (y + 4)2 = 25
A. center (1, 4), r = 5
B. center (- 1, 4), r = 5
C. center (1, - 4), r = 5
D. center (- 1, - 4), r = 5
Mathematics
Divide.
A. 12.3
B. - 
C. 1.23
D. -40
Mathematics