Solve the problem.The function f(x) = 300(0.5)x/100 models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. Find the amount of radioactive material in the vault after 
Round to the nearest whole number.
A. 125 pounds
B. 168 pounds
C. 180 pounds
D. 131 pounds
Answer: D
Mathematics
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Find the transform of the given function by use of a table.f 
= 2t sin (-4t) + e4t cos (t)
A. F 
= 
+ 
B. F 
= 
+ 
C. F 
= 
+ 
D. F 
= 
+ 
Mathematics
Divide. Write the answer in lowest terms and as a whole or mixed number where possible.
A. 2
B. 6
C. 
D. 3
Mathematics
Evaluate the determinant:
Mathematics
Write the following phrase as an algebraic expression and simplify if possible. Let x represent the unknown number.The sum of four times a number, 1, six times a number, and 3
A. 10x + 2 B. 10x + 22 C. 10x + 4 D. 4x + 10
Mathematics