Perform the indicated operation. Assume that all variables are nonnegative.7
+ 
- 6
A. 
B. 13
+ 
C. 
D. 
+ 
Answer: D
Mathematics
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Determine whether the given value is a solution to the given equation.Is 4.5 a solution of 0.5x = 2.025?
A. Yes B. No
Mathematics
Evaluate the expression.(-64)1/3
A. not a real number B. -4 C. 4 D. -64
Mathematics
Multiply.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem. Round your answer to the nearest whole number.The rate of a reaction to a drug is given by r'(t) = 6t2e-t, where t is the number of hours since the drug was administered. Find the total reaction to the drug over all the time since it was administered, assuming this is an infinite time interval. (Hint: 
tke-t = 0 for all real numbers k.)
A. 36 B. 0 C. ? D. 12
Mathematics