Restate the fact as indicated.In a given year, the U.S.annual energy consumption is roughly 1 × 1020 Joules. Express this as energy consumption per person per second. Assume that the U.S. population during this year is roughly 280 million. .
A. 3.6 × 1011 Joules per person per second
B. 680,000 Joules per person per second
C. 11,324.9 Joules per person per second
D. 190.3 Joules per person per second
Answer: C
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Solve the problem.The graphs below show the first and second derivatives of a function 
. Select a possible graph f that passes through the point P.f'?f"
?
A. 
[NOTE: Graph vertical scales
may vary from graph to graph.]
B. 
[NOTE: Graph vertical scales
may vary from graph to graph.]
C. 
[NOTE: Graph vertical scales
may vary from graph to graph.]
D. 
[NOTE: Graph vertical scales
may vary from graph to graph.]
Graph the piecewise function.f(x) = 
A. 
B. 
C. 
D. 
Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.-9
(2
+ 4
+ 
)
A. -72y
B. -17
+ 4
C. -72xy
D. -18
- 36x - 9x
Solve the problem.The revenue achieved by selling x graphing calculators is figured to be 
The cost of each calculator is 
How many graphing calculators must be sold to make a profit (revenue - cost) of at least $312.80?
A. {x?36 < x < 44} B. {x?14 < x < 26} C. {x?35 < x < 33} D. {x?34 < x < 46}