Use a calculator to evaluate the expression. Round the answer to three decimal places.-(-2.64)-6
A. 0.008
B. -0.003
C. -338.551
D. 120.427
Answer: B
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Sketch a graph that is decreasing and concave down.
What will be an ideal response?
Write the following in simplest form using positive exponents.
2 ÷ 
2
A. 
B. 1
C. 
2
D. - 
Use a differential to approximate 
.
?
Round the result to five decimal places, if necessary.
?
Hint: Let 
and compute dy with x = 16 and dx = 0.01.
?
__________
Fill in the blank(s) with the appropriate word(s).
Steel has been playing a decreasing role in the manufacture of beverage cans in the United States. The use of bimetallic cans has been dwindling, whereas the use of all-aluminum cans has been growing steadily. The accompanying table gives the production (in billions) of all-aluminum cans over the period from 1975 through 1989:
Year19751977197919811983198519871989Cans, y16.72633.348.35765.874.283.3?
Find an equation of the least-squares line for these data. (Let 
represent the year 1975.) Please round the coefficients in your equation to three decimal places. Use the result to estimate the number of cans produced in 1996, assuming the trend continued. Round the answer to three decimal places.
?
A. 
billion cans
B. 
billion cans
C. 
billion cans
D. 
billion cans