Multiply and simplify.
? 
A. - 
B. 
C. 
D. -12
Answer: A
Mathematics
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Find the distance between the points (4, -5) and (9, 0). Round the answer to the nearest tenth. ?
A. 7.1 B. 7.4 C. 7.3 D. 7.5 E. 6.9
Mathematics
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
Mathematics
Simplify.
- 
A. 
B. 
C. 
D. 
Mathematics
Evaluate the expression without using a calculator.log5 
A. 5 B. -1 C. 1 D. -5
Mathematics