Solve the problem.The decay of 514 mg of an isotope is given by A(t) = 514e-0.021t, where t is time in years. Find the amount left after 63 years.
A. 137 mg
B. 69 mg
C. 503 mg
D. 134 mg
Answer: A
You might also like to view...
Provide an appropriate response.Find the derivative of y = 
For what values of x is the slope of the tangent line negative? For what values of x is the slope of the tangent line positive? For what values of x is the slope of the tangent line equal to zero?
What will be an ideal response?
Give an appropriate answer.The following table shows the average cost of a gallon of tea for the years 2008 through 2012. 
Draw a line graph that makes the increase in the price look large.
What will be an ideal response?
Use the given table for f(x) = ax2 + bx + c to solve the inequality f(x) < 0.
A. x < -4 or x > -1 B. 1 < x < 4 C. x < 1 or x > 4 D. -4 < x < -1
Solve the problem.There are 1,447,966 active dentists living in a certain country. If 79.8% of these dentists are male, find (i) the percent of dentists who are female and (ii) the number of dentists who are female. Round to the nearest whole number.
A. (i) 79.8% female dentists; (ii) 1,155,477 female dentists B. (i) 20.2% female dentists; (ii) 292,489 female dentists C. (i) 79.8% female dentists; (ii) 29,248,913 female dentists D. (i) 20.2% female dentists; (ii) 29,248,913 female dentists