Solve the problem.The half-life of a certain radioactive substance is 14 years. Suppose that at time t = 0 , there are 27 g of the substance. Then after t years, the number of grams of the substance remaining will be N(t) = 27
t/28. How many grams of the substance will remain after 70 years? Round to the nearest tenth.
A. 2.4 g
B. 0.6 g
C. 1.2 g
D. 4.8 g
Answer: D
Mathematics
You might also like to view...
Factor completely.u2 - 2uv - 80v2
A. (u - 8v)(u + v) B. (u + 8v)(u - 10v) C. (u - v)(u + 10v) D. (u - 8v)(u + 10v)
Mathematics
Find the exact value of the expression.sin2
A. 
B. 
C. 
D. 
Mathematics
Find the domain and range of the relation.{(-2, -6), (1, 4), (4, 0), (7, -1)}
A. domain: {-2, 1, 4, 7}, range: {-6, 4, 0 } B. domain: (-?, ?), range: {-2, 1, 4, 7} C. domain: {-2, 1, 4, 7}, range: {-6, 4, 0, -1} D. domain: {-6, 4, 0, -1}, range: (-?, ?)
Mathematics
Consider the following measurement.
Find the precision, the greatest possible error, the relative error and the percent of error (to the nearest hundredth of a percent).
A. 
B. 
C. 
D. 
E. 
Mathematics