Solve.The function A = A0e-0.01155x 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 400 pounds of the material are initially put into the vault, how many pounds will be left after 40 years?
A. 141 pounds
B. 133 pounds
C. 252 pounds
D. 300 pounds
Answer: C
Mathematics
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Let L be the value of 
f(x). Use graphical methods, and the additional information provided, to find a 
so that if 
then 
Let f(x) = 
, x0 = 2, L = 2, and ? = 0.25
A. 0.50 B. 0.4641 C. 0 D. 0.25
Mathematics
Add.-6 + 3
A. -3 B. 9 C. -9 D. 3
Mathematics
Solve the problem. Round to the nearest cent.A director of accounts received a bill for $1455, dated July 4, with sales terms 4/10 EOM. Find the cash discount and amount due if the bill was paid August 24.
A. Cash discount: $58.20; net amount: $1396.80 B. Cash discount: $145.50; net amount: $1309.50 C. Cash discount: $14.55; net amount: $1440.45 D. Cash discount: $0; net amount: $1455
Mathematics
Use a sketch to find the exact value of the expression.tan 
A. 
B. 
C. 2
D. 1
Mathematics