A PDF for a continuous random variable X is given. Use the PDF to find E(X).f(x) = 
A. 4
B. 5
C. 
D. 
Answer: C
Mathematics
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Use the Trapezoidal Rule with n = 4 steps to estimate the integral.
A. 
B. 
C. 
D. 
Mathematics
Which of the following writings have teachers used to launch mathematical problem solving activities?
a. Shel Silverstein poetry b. Harry Potter c. Alice's Adventures in Wonderland d. All of the above e. None of the above
Mathematics
Factor.8x3 + y3
A. (2x + y)(4x2 + y2) B. (2x - y)(4x2 + 2xy + y2) C. (2x + y)(4x2 - 2xy + y2) D. (2x + y)(4x2 + 2xy + y2)
Mathematics
Write the decimal number in binary form.146
A. 10010010 B. 10001101 C. 10010111 D. 10010011 E. 10011011
Mathematics