Solve the problem.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 600 pounds of the material are initially put into the vault, how many pounds will be left after 170 years?
A. 162 lb
B. 567 lb
C. 159 lb
D. 416 lb
Answer: A
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Solve the problem.Prove that 
dt = 
dt + 
dt
What will be an ideal response?
Provide an appropriate response.In the figure below, BD = CD. Prove that m(?BAC) = 2 ? m(?BAD).
What will be an ideal response?
Find the limit.
a. 0
b. 
c. 
d. 
e. does not exist
Solve.Each week a soft drink machine sells x cans of soda for $0.75/soda. The cost to the owner of the soda machine for each soda is $0.10. The weekly fixed cost for maintaining the soda machine is $25/week. Write an equation that relates the weekly profit, P, in dollars to the number of cans sold each week. Then use the equation to find the weekly profit when 92 cans of soda are sold in a week.
A. P = 0.65x - 25; $34.80 B. P = 0.65x + 25; $84.80 C. P = 0.75x + 25; $94.00 D. P = 0.75x - 25; $44.00