Indicate whether the function is one-to-one.B = {(-2, 1), (-1, 1), (0, 4), (1, 3)}
A. No
B. Yes
Answer: A
Mathematics
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Evaluate.50
A. -1 B. 0 C. 1 D. 5
Mathematics
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
Mathematics
Graph the parabola.x = 
(y - 4)2 + 2 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Matthew has saved a total of $10,500, of which $2100 is invested in the stock market. What percent of his total savings is invested in the stock market?
A. 30% B. 20% C. 15% D. 25%
Mathematics