Find the opposite of the number.
A. 0
B. 
C. - 
D. 
Answer: C
Mathematics
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A set of data items is normally distributed with a mean of 60. Determine the z-score for the data point given, if the standard deviation is as given.data item: 104; standard deviation: 11
A. 4
B. 
C. 11
D. 44
Mathematics
Find the product, if possible.
A. 
B. 
C. 
D. 
Mathematics
Find the real solutions, if any, of the equation. Use the quadratic formula.4x2 + 9 = -20x
A. {- 
, - 
}
B. {- 
, - 
}
C. {- 
, 
}
D. {
, 
}
Mathematics
Graph the function.y = 3 cos 
x
A. 
B. 
C. 
D. 
Mathematics