Find the probability.A card is drawn from a well-shuffled deck of 52 cards. What is the probability of drawing a heart, club, or diamond?
A. 3
B. 
C. 
D. 
Answer: C
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Solve the system of equations using matrices. Use Gaussian elimination with back-substitution. x + y + z= 2 x - y + 5z=-42x + y + z= 7
A. {(5, -2, -1)} B. {(-2, -1, 5)} C. {(5, -1, -2)} D. {(-2, 5, -1)}
Describe the sample space for the experiment.A card is drawn from a box containing 10 red cards numbered 1 through 10.
A. {10} B. {100} C. {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} D. None of these
Graph the solution set of the system of inequalities.y ? - x2 - 6x - 4y ? x2 + 6x + 4
A. 
B. 
C. 
D. 
Given that f(x) = sin x, g(x) = cos x, and h(x) = tan x, evaluate the given function. The point (x, 
), on the circle 
, also lies on the terminal side of an angle ? in standard position. The point 
, on the circle 
, also lies on the terminal side of an angle ? in quadrant IV. g(? + ?)
A. 
B. 
C. 
D. 