Find the opposite of the real number.-16.
A. 
B. 
C. 16
D. -16.
Answer: C
Mathematics
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Reduce the index of radical.
?
?
A. 
?
B.
?
C.
?
D. (x + 1)
?
E.
Mathematics
Evaluate the function for the given value.Given f(x) = 
x + 7, find f(-3).
A. - 
B. 
C. 
D. 0
Mathematics
Use the Gauss-Jordan method to find A-1, if it exists.A = 
A. 
B. 
C. 
D. Does not exist
Mathematics
Solve the problem.A computer virus begins to spread among the computers in a large corporation. The percent of the computers that are infected is approximately 
where t is the number of hours that have elapsed since the first computer contracted the virus. Find the instantaneous rate of change of the percent of computers infected at 
hours.
A. 17%/hour B. 20%/hour C. 12%/hour D. 23%/hour
Mathematics