Solve the problem.The decay of 569 mg of a radioactive substance is given by A(t) = 569e-0.029t, where t is time in years. Find the amount left after 81 years.
A. 54
B. 27
C. 53
D. 553
Answer: A
Mathematics
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Use the quotient rule to divide and simplify.
A. 
B. 
C. 
D. 
Mathematics
Write the equation of a sine function that has the given characteristics.The graph of y = 
, shifted 2 units to the right
A. y = 
+ 2
B. y = 
- 2
C. y = 
D. y = 
Mathematics
Solve.A restaurant has a capacity of 153 patrons. If the restaurant is 
full, how many patrons are at the restaurant?
A. 68 patrons B. 64 patrons C. 17 patrons D. 72 patrons
Mathematics
Find the exact value under the given conditions.sin ? = 
, 
< ? < ?; cos ? = 
, 0 < ? < 
Find sin (? - ?).
A. - 
B. 
C. 
D. 
Mathematics