Solve the problem.The sales of a mature product (one which has passed its peak) will decline by the function S(t)= S0e-at, where t is time in years. Find the sales after 8 years if 
and 
A. 5746
B. 58,065
C. 245,075
D. 11,491
Answer: D
Mathematics
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Sketch the curve.4x2 + 25y2 = 100
A. 
B. 
C. 
D. 
Mathematics
Find the equation of the line through the given pair of points. Solve it for y if possible.(-4, -3), (1, 6)
A. y = 
x + 
B. x = -4
C. y = 
x + 6
D. y = 3x + 9
Mathematics
Solve.Write 
as a percent. (Hint: Write 
as a decimal, and then write the decimal as a percent.)
A. 20% B. 200% C. 2% D. 0.2%
Mathematics
Find the volume of the sphere. Use 3.14 for ?.
A. 113.04 ft3 B. 7.948 ft3 C. 9.42 ft3 D. 14.13 ft3
Mathematics