Solve the problem.The sales of a mature product (one which has passed its peak) will decline according to the function 
where t is time in years since the peak sales. Find the sales of a product 22 years after its peak sales if 
and 
A. 300,274
B. 433
C. 865
D. 17,196
Answer: C
Mathematics
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Sketch the level curve z = k for the indicated values of k.z = x + y2, k = -4, -1, 0, 1, 4
A. 
B. 
C. 
D. 
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Solve the exponential equation.4x = 17
A. 4.250 B. 1.447 C. 2.044 D. 0.489
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Convert. When necessary, round the answer to two decimal places.12.5 gallons = quarts
A. 100 B. 50 C. 24 D. 48
Mathematics
Find the dot product v ? w.v = 2i,
w = j
A. 2
B. 0
C. 3
D. 
Mathematics