Let 
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Use a Riemann sum with four subintervals of equal length 
to approximate the area of R (under the graph of f on the interval [0, 2]). Choose the representative points to be the left end points of the subintervals.
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__________ sq units
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Repeat previous part with eight subintervals of equal length 
.
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__________ sq units
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Compare the approximations obtained in previous parts with the exact area (12 sq units). Do the approximations improve with larger n?
What will be an ideal response?
14.4; 13.2; yes
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Find the volume of the indicated region by an iterated integration.The region bounded by the surface 
, the cylinder 
, and the 
A. 
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B. 5000?
C. 
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D. 2500?
Solve the problem.The position of a body moving on a coordinate line is given by 
with s in meters and t in seconds. When, if ever, during the interval 
does the body change direction?
A. t = 3.5 sec B. t = 7 sec C. no change in direction D. t = 14 sec
Graph the function.f(x) = 2- x - 4
A. 
B. 
C. 
D. 
The following table shows the earnings for the Juarez family last year. Use this information to answer the question.MonthEarningsMonthEarningsJan.$1400July$1300Feb.$1150Aug.$2450Mar.$2950Sept.$2500Apr.$2300Oct.$2000May$1650Nov.$2350June$2700Dec.$2400What was the family's total income from January thru June?
A. $11,000 B. $9,200 C. $12,150 D. $13,000