Solve the problem.A wheel is rotating at 7 radians/sec, and the wheel has a 48-inch diameter. To the nearest foot, what is the speed of a point on the rim in ft/min?
A. 835 ft/min
B. 845 ft/min
C. 840 ft/min
D. 830 ft/min
Answer: C
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Solve.A car travels 147 miles in 2 hours and 30 minutes. What is its average speed in mph and km/hr? (Round to the nearest tenth.)
Fill in the blank(s) with the appropriate word(s).
Perform the indicated operation and simplify. Assume all variables represent positive real numbers.
A. 7a2 + a 
+ 
+ 
B. 7a2 + a 
+ 7a 
+ 
C. 7a2 + a 
+ 7a 
D. 7a2 + 
Write an equation for a function whose graph fits the given description.The graph of f(x) = x2 is shifted 3 units to the left. This graph is then vertically shrunk by a factor of 
and reflected across the x-axis. Finally, the graph is shifted 7 units downward.
A. y = - 
(x - 3)2 + 7
B. y = 
(x - 3)2 - 7
C. y = - 
(x - 3)2 - 7
D. y = - 
(x + 3)2 - 7
Use the simplex method to find the optimal solution.
?
?
Maximize
subject to
?
A. maximum: 
B. maximum: 
C. maximum: 
D. maximum: 
E. maximum: 