Find the component form of the specified vector.The unit vector that makes an angle -5?/3 with the positive x-axis
A. 
B. 
C. 
D. 
Answer: C
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Use integration by parts to establish a reduction formula for the integral.
A. 
= xn ex - n 
B. 
= xn ex - 
C. 
= xn ex - n 
D. 
= xn ex + n 
Identify the statement as simple or compound.It is false that whales are fish and bats are birds.
A. Simple B. Compound
Find the expected value.A fair coin is tossed three times, and a player wins $3 if 3 tails occur, wins $2 if 2 tails occur and loses $3 if no tails occur. If one tail occurs, no one wins. What is the expected value of the games?
A. $0.75 B. $2.00 C. -$3.00 D. $3.00
Determine whether the graph is that of a function. If it is, use the graph to find its domain and range, the intercepts, if any, and any symmetry with respect to the x-axis, the y-axis, or the origin.
A. function domain: {x|x ? 4} range: all real numbers intercepts: (-3, 0), (0, 3), (1, 0) symmetry: y-axis B. function domain: all real numbers range: {y|y ? 4} intercepts: (-3, 0), (0, 3), (1, 0) symmetry: none C. function domain: all real numbers range: {y|y ? 4} intercepts: (0, -3), (3, 0), (0, 1) symmetry: none D. not a function