Tritium, a radioactive isotope of hydrogen, has a half-life of 12.4 years. Of an initial sample of 60 grams, how much will remain after 81 years?
A) 2.8307 grams
B) 0.6483 grams
C) 15.0000 grams
D) 53.9595 grams
E) 0.0000 grams
B) 0.6483 grams
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Provide an appropriate response.The region shown here is to be revolved about the y-axis to generate a solid. Which of the methods (disk, washer, shell) could you use to find the volume of the solid? How many integrals would be required in each case?
What will be an ideal response?
Graph the equation. Include the coordinates of any local and absolute extreme points and inflection points.y = 
A. local minimum: 
no inflection points
B. local minimum: (0, 0)
inflection points: 
, 
C. local minimum: (0, 0)
no inflection points
D. local minimum: 
no inflection points
Convert.52 m = ____ mm
A. 5200 B. 0.052 C. 52,000 D. 0.52
Divide. If the division is not possible, write "undefined."
A. 44,249 R3 B. 44,249 R4 C. 44,248 R10 D. 44,249