Provide an appropriate response.The probability distribution for the random variable X is: 
What is the expected value of X?
A. 0.62
B. 0.26
C. 0.22
D. 0.50
Answer: A
Mathematics
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Solve the problem. Round to the nearest cent.The sales tax on a freezer is $34.52 and the sales tax rate is 8%. Find the purchase price (the price before taxes are added) and the total price paid.
A. $431.50, $466.02 B. $493.14, $527.66 C. $383.56, $418.08 D. $43.15, $77.67
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Multiply.
A. 14,390 B. 14,400 C. 14,396 D. 14,410
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Add.36 + 12
A. 93 B. 57 C. 48 D. 84
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Use a graphing calculator to sketch the graph of the quadratic equation, and then state the domain and range.y = -5x2 - 4x + 2
A. D: all real numbers; R: (y ? 2.8) B. D: all real numbers; R: (y ? 2.8) C. D: all real numbers; R: (y ? 1.2) D. D: (x ? 0), R: all real numbers
Mathematics