Provide an appropriate response.What symmetry does the graph of y = f(x) exhibit?
A. x-axis
B. y-axis
C. origin
D. no symmetry
Answer: C
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For the given slope of line l1, (a) find the slope of line a l2 parallel to l1, and (b) find the slope of a line l3 perpendicular to l1.m = 0
A. (a) 0; (b) -1
B. (a) 0; (b) undefined
C. (a) 
; (b) -9
D. (a) undefined; (b) 0
Solve the problem. Round to the nearest hundredth if necessary.Three people build a rectangular shed 8 ft wide, 6 ft long, and 7 ft high. How many ft3 does the shed contain?
A. 2688 ft3 B. 336 ft3 C. 146 ft3 D. 21 ft3
Because of the increasingly important role played by coal as a viable alternative energy source, the production of coal has been growing at the rate of
?
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billion metric tons/year t years from 1970 (which corresponds to 
). Had it not been for the energy crisis, the rate of production of coal since 1970 might have been only
?
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billion metric tons/year t years from 1970. Determine how much additional coal was produced between 1970 and the end of the century as an alternate energy source. Round your answer to one decimal place.
?
A. 121.3 billion metric tons
B. 128.6 billion metric tons
C. 127.0 billion metric tons
D. 118.1 billion metric tons
Find the whole.69 hotels is 115% of what number of hotels?
A. 132.25 B. 60 C. 13,225 D. 600