Find the expected value for the random variable.
A. 5.25
B. 9.6
C. 7.32
D. 7.92
Answer: D
Mathematics
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Simplify the complex fraction.
A. -2
B. 
C. - 
D. 2
Mathematics
Evaluate the arithmetic expression by performing the operations in the appropriate order.82 ? 53 + (13 - 1) ? 4
A. 8048 B. 1648 C. 288 D. 8056
Mathematics
Use a calculator to find the function value to four decimal places.sin (72.5°)
A. 3.1716 B. -0.2410 C. 0.3007 D. 0.9537
Mathematics
Simplify. Assume that all variables represent positive real numbers.6
- 2
- 
A. 17x
B. 18x
C. 4x
D. 3x
Mathematics