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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Find the area of the surface generated by revolving the curve about the indicated axis. y = 
, 3/2 ? x ? 9/2; x-axis
A. 
?
B. 
?
C. 
?
D. 
?
Mathematics
Evaluate the integral.
A. 1512 B. 168 C. 504 D. 1008
Mathematics
Determine graphically the x-value when y = 6 in the given equation.3x - y = 6
A. 0;
B. 0;
C. -4;
D. 4;
Mathematics
Solve the right triangle. If two sides are given, give angles in degrees and minutes.
a = 10.9 cm, b = 21.7 cmRound the missing side length to one decimal place.
A. A = 30°9'; B = 59°51'; c = 22.6 cm B. A = 30°9'; B = 59°51'; c = 24.3 cm C. A = 26°40'; B = 63°20'; c = 25.8 cm D. A = 26°40'; B = 63°20'; c = 24.3 cm
Mathematics