Perform the indicated operation or operations, if possible.
+ 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the standard deviation. Round to one more place than the data.
A. 16.0 B. 0.8 C. 16.8 D. 1.4
Mathematics
Solve the problem.An experiment calls for cooling a mixture to -13°F, then increasing the temperature 80 degrees. What is the final temperature the experiment is to obtain?
A. 67°F B. -93°F C. -67°F D. 93°F
Mathematics
Determine whether the statement is true or false.{..., -7, -5, -3, -1, 1, 3, 5, 7, ...} is the set of integers.
A. true B. false
Mathematics
Which of the following functions y = f(x) satisfy y' = - 
y, f(1) = 1?(I) y = ex(II)y = e-2/3x(III)y = e(-2/3)(x - 1)(IV)y = - 
ex
A. I and II B. III only C. IV only D. II only E. none of these
Mathematics