Solve the problem.Find the expected value of the random variable with outcomes and associated probability distribution shown in the following table. 
A. 58
B. 56
C. 32
D. 12
E. 50
Answer: A
Mathematics
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Provide an appropriate response.If 
= 5, find 
f(x).
A. 13 B. 2 C. 9 D. Does not exist
Mathematics
Find the radius of a circle if the diameter has the value given.d = 42 in.
A. 1384.74 in. B. 21 in. C. 10.5 in. D. 65.94 in.
Mathematics
Show that for any positive number ? we can find a positive number ? such that the statement below is satisfied.6x - 7 is less than ? away from 5 whenever x is less than ? away from 2.
A. ? = 
B. ? = 
C. ? = 
D. ? = 
Mathematics
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.sin ? = - 
, 
< ? < 2?Find cos 
.
A. 
B. - 
C. - 
D. 
Mathematics