Solve the problem.Suppose the amount of a radioactive element remaining in a sample of 100 milligrams after x years can be described by 
. How much is remaining after 186 years? Round the answer to the nearest hundredth of a milligram.
A. 0.03 mg
B. 3676.99 mg
C. 360.47 mg
D. 2.72 mg
Answer: D
Mathematics
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Use scientific notation to perform the following operations. Leave your answer in scientific notation.(5 × 10-5) ÷ (10 × 10-3)
A. 5.0 × 107 B. 2.0 × 10-2 C. 5.0 × 10-3 D. 2.0 × 108
Mathematics
Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the x-axis.x = 3
, x = - 3y, y = 1
A. 6?
B. 
?
C. 
?
D. 8?
Mathematics
Given the graph of f, find any values of x at which f ' is not defined.
A. x = 2, 5 B. x = 5 C. x = 2 D. Defined for all values of x
Mathematics
Evaluate the given function.f(x) = 5x + 3, f(3)
A. 18 B. 128 C. 15,625 D. 125
Mathematics