Total personal income in the U.S. (in billions of dollars) for selected years from 1960 to 2002 is given in the following table.
?
Year
1960
1970
1980
1990
2000
2002
Personal income
384.69
446.97
447.11
494.36
530.20
532.30
?
?
These data can be modeled by 
, where x is the number of years past 1960. Use the data to find the average rate of change from 2000 to 2002, which can be used to approximate the rate of change in 2002. Round your answer to the nearest ten million dollar.
?
A. $3.20 billion per year
B. $2.83 billion per year
C. $3.74 billion per year
D. $3.84 billion per year
E. $3.69 billion per year
Answer: C
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Write a chain rule formula for the following derivative.
for w = f(x, y, z); x = g(r, s, t), y = h(r, s, t), z = k(r, s, t)
A. 
= 
+ 
+ 
B. 
= 
+ 
C. 
= 
+ 
+ 
D. 
= 
+ 
+ 
Solve. Where appropriate, include approximations to the nearest thousandth. If no solution exists, state this.11 = 4e2x
A. 0.506 B. 1.012 C. 1.459 D. 0.865
Find the distance d(A, B) between the points A and B.A = (5, 7); B = (-5, -2)
A. 
B. 1
C. 
D. 90
Convert the units.10 L = 
mL
A. 0.01 mL B. 1000 mL C. 1 mL D. 10,000 mL