Solve the problem.The half-life of a certain radioactive substance is 10 years. Suppose that at time t = 0 , there are 29 g of the substance. Then after t years, the number of grams of the substance remaining will be 
How many grams of the substance will remain after 80 years? Round to the nearest hundredth when necessary.
A. 0.91 g
B. 0.23 g
C. 1.81 g
D. 0.45 g
Answer: C
Mathematics
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Decide if the statement is true or false.
< 
A. False B. True
Mathematics
Find the nth term of the arithmetic sequence with the given values.
, 
, - 
, . . . ; n = 20
A. - 
B. - 
C. - 
D. - 6
Mathematics
Graph the equation by plotting points.y = 
A. 
B. 
C. 
D. 
Mathematics
Graph the linear function and give the domain and the range. If the function is a constant function, identify it as such.g(x) = x + 1
A. D = (-?, ?), R = (-?, ?)
B. D = (-?, ?), R = (-?, ?)
C. D = (-?, ?), R = (-?, ?)
D. D = (-?, ?), R = (-?, ?)
Mathematics