Solve.The function A = A0e-0.0077x models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. If 300 pounds of the material are initially put into the vault, how many pounds will be left after 30 years?
A. 38 pounds
B. 50 pounds
C. 238 pounds
D. 450 pounds
Answer: C
Mathematics
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Use a computer algebra system (CAS) to solve the given initial value problem.y' = 
, y(0) = 4
A. y = 7 ln
- 7x + 4
B. y = 8 tan-1 x - x + 4
C. y = 14 tan-1 x - 7x + 4
D. y = 14 tan-1 x - 7x
Mathematics
Approximate the natural logarithm with a scientific calculator. Round to four decimal places.ln 0.988
A. 0.0052 B. -0.0052 C. 0.0121 D. -0.0121
Mathematics
Write the solution set to the inequality in interval notation.x > 17
A. (-?, 17) B. [17, ?) C. (-?, 17] D. (17, ?)
Mathematics
Provide an appropriate response.When would the simplex method be used instead of the graphical method?
What will be an ideal response?
Mathematics