Suppose that, for a certain exam, a teacher grades on a curve. It is known that the mean is 55 and the standard deviation is 7. There are 50 students in the class. What score would be necessary to obtain a C?
?
?
A. 48 or above
B. 62 or above
C. 50 or above
D. 44 or above
E. 42 or above
Answer: A
Mathematics
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A. 
+ C
B. 
+ C
C. 
+ C
D. 
+ C
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Evaluate the integral.
A. 7776 B. 216 C. 36 D. 1296
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Graph the line described.Through (0, 3); m = - 
A. 
B. 
C. 
D. 
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Use the given information to find the exact value of the trigonometric function.cos ? = 
; The terminal side of ? lies in Quadrant IV.
Find cos 
.
A. 
B. 
C. - 
D. - 
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