Evaluate the expression.Let x = 10, y = -2. Evaluate |14x|.
A. 20
B. -20
C. -140
D. 140
Answer: D
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The payoff (X) for a lottery game has the following probability distribution. Payoff, X$0 $5 Probability0.8 0.2 What is the expected payoff? Is the game fair?
A. $0; Yes B. $0.50; No C. $1.00; No D. $2.50; No
Find the distance d(A, B) between the points A and B.A = (4, 4); B = (4, -4)
A. 8
B. 7
C. 2
D. 9
Solve.A car rental company charges $24 per day plus 39¢ per mile to rent a car. What is the total bill if a car is rented for 2 days and is driven 113 miles?
A. $68.07 B. $44.07 C. $109.09 D. $92.07
Sketch the graph of the equation. Identify the vertex and the intercepts.y = -x2 + 2x + 8
A. vertex: (1, 9);
x-intercepts: (-4, 0) and (2, 0);
y-intercept: (0, 8)
B. vertex: (1, 9);
x-intercepts: (-2, 0) and (4, 0);
y-intercept: (0, 8)
C. vertex: (- 1, 9);
x-intercepts: (-4, 0) and (2, 0);
y-intercept: (0, 8)
D. vertex: (1, - 9);
x-intercepts: (-2, 0) and (4, 0);
y-intercept: (0, 8)